{"id":52814,"date":"2025-09-21T05:49:00","date_gmt":"2025-09-20T20:49:00","guid":{"rendered":"https:\/\/phys-edu.net\/wp\/?p=52814"},"modified":"2025-09-21T05:49:00","modified_gmt":"2025-09-20T20:49:00","slug":"nain-laimennat-suolahapon-rikkihapon-ammoniakin-ja-kuparikloridin-opi-laimennuksen-perusteet-ja-valmistaudu-turvallisiin-oppitunteihin","status":"publish","type":"post","link":"https:\/\/phys-edu.net\/wp\/?p=52814&lang=fi","title":{"rendered":"N\u00e4in laimennat suolahapon, rikkihapon, ammoniakin ja kuparikloridin \u2013 opi laimennuksen perusteet ja valmistaudu turvallisiin oppitunteihin!"},"content":{"rendered":"<div class=\"g-ytsubscribe\" data-channelid=\"UCBoF1yPvFnXnSJ_Xe5AmXcw\" data-layout=\"full\" data-count=\"default\">\n<p style=\"text-align: center;\"><strong style=\"color: #339966;\">Hei, olen tiedekouluttaja Ken Kuwako. Joka p\u00e4iv\u00e4 on kokeilu.<\/strong><\/p>\n<\/div>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-48579\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/04\/cc621f1d3be999c49adc05edc33c39f8.jpg\" alt=\"\" width=\"254\" height=\"252\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/04\/cc621f1d3be999c49adc05edc33c39f8.jpg 826w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/04\/cc621f1d3be999c49adc05edc33c39f8-300x298.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/04\/cc621f1d3be999c49adc05edc33c39f8-150x150.jpg 150w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/04\/cc621f1d3be999c49adc05edc33c39f8-768x762.jpg 768w\" sizes=\"auto, (max-width: 254px) 100vw, 254px\" \/><\/p>\n<p style=\"text-align: center;\">\u3010<a href=\"https:\/\/phys-edu.net\/wp\/?p=51360&amp;lang=en\">Lue t\u00e4m\u00e4 artikkeli englanniksi<\/a>\u3011<\/p>\n<p>Kun k\u00e4sittelet kemikaaleja laboratoriossa, laimentamisen perusteet ovat ehdottoman t\u00e4rkeit\u00e4, jotta kokeilut sujuvat turvallisesti, tarkasti ja tehokkaasti. T\u00e4h\u00e4n artikkeliin kokosin opettajille t\u00e4rkeimm\u00e4t vinkit kemikaalien laimentamiseen, turvallisuusohjeisiin ja oikeisiin pitoisuuksiin k\u00e4yt\u00e4nn\u00f6n kokeissa. N\u00e4m\u00e4 tiedot ker\u00e4sin alun perin itse\u00e4ni varten, mutta ne ovat todellinen pelastus arjessa. Hyv\u00e4 valmistelu luo mielenrauhaa ja takaa onnistuneet tunnit. T\u00e4m\u00e4n artikkelin luettuasi hallitset yleisimpien kemikaalien laimentamisen kuin ammattilainen.<\/p>\n<p>Esimerkiksi Hamashima Shotenin tiedeoppaan (s. 243) kaltaisissa kirjoissa on hyvi\u00e4 ohjeita laimentamisesta. Natriumhydroksidin elektrolyysiss\u00e4 5 % pitoisuus on riitt\u00e4v\u00e4, samoin kuin suolahapon elektrolyysiss\u00e4. T\u00e4ss\u00e4 artikkelissa k\u00e4yn tarkemmin l\u00e4pi, miten liuoksia valmistetaan, ja jaan vinkkej\u00e4 opettajien tarpeisiin. Laskelmat, kuten massa-%:n muuntaminen molaarisuudeksi, on k\u00e4sitelty erillisess\u00e4 artikkelissa. Tutustu siihen t\u00e4\u00e4ll\u00e4:<\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"2ELLlTt59R\"><p><a href=\"https:\/\/phys-edu.net\/wp\/?p=38065\">\u3010\u3082\u3046\u8ff7\u308f\u306a\u3044\uff01\u3011\u8cea\u91cf\u30d1\u30fc\u30bb\u30f3\u30c8\u6fc3\u5ea6\u3068\u30e2\u30eb\u6fc3\u5ea6\u3092\u81ea\u7531\u81ea\u5728\u306b\u5909\u63db\u3059\u308b\u5316\u5b66\u306e\u30ec\u30b7\u30d4\uff08\u898f\u5b9a\u5ea6N\u30fbppm\uff09<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"&#8221;\u3010\u3082\u3046\u8ff7\u308f\u306a\u3044\uff01\u3011\u8cea\u91cf\u30d1\u30fc\u30bb\u30f3\u30c8\u6fc3\u5ea6\u3068\u30e2\u30eb\u6fc3\u5ea6\u3092\u81ea\u7531\u81ea\u5728\u306b\u5909\u63db\u3059\u308b\u5316\u5b66\u306e\u30ec\u30b7\u30d4\uff08\u898f\u5b9a\u5ea6N\u30fbppm\uff09&#8221; &#8212; \u79d1\u5b66\u306e\u30cd\u30bf\u5e33\" src=\"https:\/\/phys-edu.net\/wp\/?p=38065&#038;embed=true#?secret=6gaqhHxKQz#?secret=2ELLlTt59R\" data-secret=\"2ELLlTt59R\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<h2>Suolahapon laimentaminen<\/h2>\n<p>Peruskoulun tiedetunneilla k\u00e4ytett\u00e4v\u00e4\u00e4 suolahappoa kannattaa laimentaa kerralla vahvasta suolahaposta. Jotta saat 10 % suolahappoa, lis\u00e4\u00e4 3,2 osaa vett\u00e4 yhteen osaan vahvaa suolahappoa. Esimerkiksi jos haluat laimentaa koko 500 cm\u00b3 pullollisen, lis\u00e4\u00e4 1600 cm\u00b3 vett\u00e4. 3 litran <a href=\"https:\/\/amzn.to\/3seeikc\">muovikanisteri (amazon)<\/a> on k\u00e4tev\u00e4 laimentamista ja s\u00e4ilytyst\u00e4 varten.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-41577 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/11\/cdc3388062d2c1d9f9389a1f663296b4.jpg\" alt=\"\" width=\"240\" height=\"323\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/11\/cdc3388062d2c1d9f9389a1f663296b4.jpg 976w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/11\/cdc3388062d2c1d9f9389a1f663296b4-223x300.jpg 223w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/11\/cdc3388062d2c1d9f9389a1f663296b4-761x1024.jpg 761w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/11\/cdc3388062d2c1d9f9389a1f663296b4-768x1034.jpg 768w\" sizes=\"auto, (max-width: 240px) 100vw, 240px\" \/><\/p>\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td>\n<div style=\"border: 1px solid #95a5a6; border-radius: .75rem; background-color: #ffffff; width: 184px; margin: 0px; padding: 5px; text-align: center; overflow: hidden;\">\n<table>\n<tbody>\n<tr>\n<td style=\"width: 80px;\"><a style=\"word-wrap: break-word;\" href=\"https:\/\/hb.afl.rakuten.co.jp\/ichiba\/2c6a2576.25faaa1b.2c6a2577.0abda625\/?pc=https%3A%2F%2Fitem.rakuten.co.jp%2Fnagamineshouten%2Fpo-3%2F&amp;link_type=picttext&amp;ut=eyJwYWdlIjoiaXRlbSIsInR5cGUiOiJwaWN0dGV4dCIsInNpemUiOiI4MHg4MCIsIm5hbSI6MSwibmFtcCI6InJpZ2h0IiwiY29tIjoxLCJjb21wIjoiZG93biIsInByaWNlIjoxLCJib3IiOjEsImNvbCI6MSwiYmJ0biI6MSwicHJvZCI6MCwiYW1wIjpmYWxzZX0%3D\" target=\"_blank\" rel=\"nofollow sponsored noopener\"><img decoding=\"async\" style=\"margin: 2px;\" title=\"[\u5546\u54c1\u4fa1\u683c\u306b\u95a2\u3057\u307e\u307e\u3057\u3066\u306f\u3001\u30ea\u30f3\u30af\u304c\u4f5c\u6210\u3055\u308c\u305f\u6642\u70b9\u3068\u73fe\u6642\u70b9\u3067\u60c5\u5831\u304c\u5909\u66f4\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u304c\u3054\u3056\u3044\u307e\u3059\u3002]\" src=\"https:\/\/hbb.afl.rakuten.co.jp\/hgb\/2c6a2576.25faaa1b.2c6a2577.0abda625\/?me_id=1240371&amp;item_id=10000489&amp;pc=https%3A%2F%2Fthumbnail.image.rakuten.co.jp%2F%400_mall%2Fnagamineshouten%2Fcabinet%2Fporikan%2F3-1.jpg%3F_ex%3D80x80&amp;s=80x80&amp;t=picttext\" alt=\"[\u5546\u54c1\u4fa1\u683c\u306b\u95a2\u3057\u307e\u307e\u3057\u3066\u306f\u3001\u30ea\u30f3\u30af\u304c\u4f5c\u6210\u3055\u308c\u305f\u6642\u70b9\u3068\u73fe\u6642\u70b9\u3067\u60c5\u5831\u304c\u5909\u66f4\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u304c\u3054\u3056\u3044\u307e\u3059\u3002]\" border=\"0\" \/><\/a><\/td>\n<td style=\"vertical-align: top; width: 88px;\">\n<p style=\"font-size: 12px; line-height: 1.4em; text-align: left; margin: 0px; padding: 2px 6px; word-wrap: break-word;\"><a style=\"word-wrap: break-word;\" href=\"https:\/\/hb.afl.rakuten.co.jp\/ichiba\/2c6a2576.25faaa1b.2c6a2577.0abda625\/?pc=https%3A%2F%2Fitem.rakuten.co.jp%2Fnagamineshouten%2Fpo-3%2F&amp;link_type=picttext&amp;ut=eyJwYWdlIjoiaXRlbSIsInR5cGUiOiJwaWN0dGV4dCIsInNpemUiOiI4MHg4MCIsIm5hbSI6MSwibmFtcCI6InJpZ2h0IiwiY29tIjoxLCJjb21wIjoiZG93biIsInByaWNlIjoxLCJib3IiOjEsImNvbCI6MSwiYmJ0biI6MSwicHJvZCI6MCwiYW1wIjpmYWxzZX0%3D\" target=\"_blank\" rel=\"nofollow sponsored noopener\">\u5b9a\u5f62\u5916\u9001\u6599\u7121\u6599\u3000\u3010\u65e5\u672c\u88fd \u3011\u3000\u30dd\u30ea\u30bf\u30f3\u30af\u30003L\u3000250g<\/a><br \/>\n\u4fa1\u683c\uff1a935\u5186\uff08\u7a0e\u8fbc\u3001\u9001\u6599\u7121\u6599) <span style=\"color: #bbb;\">(2022\/10\/21\u6642\u70b9)<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>&nbsp;<\/p>\n<p style=\"color: #000000; font-size: 12px; line-height: 1.4em; margin: 5px; word-wrap: break-word;\">\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Voit k\u00e4ytt\u00e4\u00e4 my\u00f6s <a href=\"https:\/\/direct.hpc-j.co.jp\/page\/hydrochloric_acid\">t\u00e4m\u00e4n sivuston suolahapon pitoisuuden muuntotaulukkoa<\/a> apunasi.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-40647 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/09\/c1609344dec9cb84015679a8a8c09dc3.jpg\" sizes=\"auto, (max-width: 455px) 100vw, 455px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/09\/c1609344dec9cb84015679a8a8c09dc3.jpg 1474w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/09\/c1609344dec9cb84015679a8a8c09dc3-300x147.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/09\/c1609344dec9cb84015679a8a8c09dc3-1024x502.jpg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/09\/c1609344dec9cb84015679a8a8c09dc3-768x376.jpg 768w\" alt=\"\" width=\"455\" height=\"223\" \/><\/p>\n<p>T\u00e4\u00e4lt\u00e4 l\u00f6yd\u00e4t my\u00f6s videon laimentamisesta:<\/p>\n<p><iframe loading=\"lazy\" title=\"\u5b66\u751f\u5b9f\u9a13\uff1a\u6fc3\u5869\u9178\u306e\u5e0c\u91c8\u64cd\u4f5c(Student Experiment: Concentrated Hydrochloric Acid Dilution Manipulation)\" width=\"1140\" height=\"641\" src=\"https:\/\/www.youtube.com\/embed\/JIOfGY1pKXc?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p>Jos ep\u00e4ilet, tarkista laskelmat.<\/p>\n<p style=\"padding-left: 40px;\">Vahvan suolahapon pitoisuus on 12 mol\/L ja tiheys 1,18 g\/mL. Esimerkiksi 1 litran (1000 ml) vahvan suolahapon liuos painaa:<\/p>\n<p style=\"text-align: center; padding-left: 40px;\">1.18\u00d71000=1180g<\/p>\n<p style=\"padding-left: 40px;\">Ja liuenneen aineen massa, kun molekyylimassa on 36,5, on:<\/p>\n<p style=\"text-align: center; padding-left: 40px;\">12\u00d736.5=438g<\/p>\n<p style=\"padding-left: 40px;\">Siksi vahvan suolahapon massaprosenttipitoisuus on:<\/p>\n<p style=\"text-align: center; padding-left: 40px;\">438\/1180=37.1\uff05<\/p>\n<p style=\"padding-left: 40px;\">Jotta t\u00e4m\u00e4 pitoisuus saadaan 10 %:iin, lis\u00e4tt\u00e4v\u00e4n veden m\u00e4\u00e4r\u00e4 [g] on x. Silloin:<\/p>\n<p style=\"text-align: center; padding-left: 40px;\">438\/(1180+x)=10\/100<\/p>\n<p style=\"text-align: center; padding-left: 40px;\">x=3200g<\/p>\n<p style=\"padding-left: 40px;\">T\u00e4m\u00e4 tarkoittaa, ett\u00e4 lis\u00e4\u00e4m\u00e4ll\u00e4 3,2 litraa vett\u00e4 yhteen litraan suolahappoa saadaan 10 % pitoisuus. Jos sinulla on 500 ml suolahappoa, tarvitset puolet, eli 1,6 litraa vett\u00e4.<\/p>\n<p>T\u00e4rke\u00e4 huomautus:<\/p>\n<p>Kun laimennat suolahappoa, muista aina lis\u00e4t\u00e4 happo veteen, ei koskaan toisin p\u00e4in! Kun happoon tai em\u00e4kseen lis\u00e4t\u00e4\u00e4n vett\u00e4, liukenemisreaktio voi vapauttaa l\u00e4mp\u00f6\u00e4, jolloin vesi voi roiskua vaarallisesti. Alla on lis\u00e4tietoja suolahapon ja rikkihapon laimentamisesta. Vahvan suolahapon ja rikkihapon pitoisuuserot johtuvat niiden erilaisesta liukoisuudesta.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-39153 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/10\/b4ae193d6143dd60009d55431398b786.jpg\" alt=\"\" width=\"670\" height=\"168\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/10\/b4ae193d6143dd60009d55431398b786.jpg 1354w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/10\/b4ae193d6143dd60009d55431398b786-300x75.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/10\/b4ae193d6143dd60009d55431398b786-1024x257.jpg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/10\/b4ae193d6143dd60009d55431398b786-768x193.jpg 768w\" sizes=\"auto, (max-width: 670px) 100vw, 670px\" \/><\/p>\n<p style=\"text-align: center;\">Pitoisuus 9 %:n tapauksessa normaalisuus N on noin 2,6 (2,6 mol\/L)<\/p>\n<p style=\"text-align: center;\">Pitoisuus 4 %:n tapauksessa normaalisuus N on noin 1 (1 mol\/L)<\/p>\n<p>L\u00e4hde: <a href=\"http:\/\/www.keins.city.kawasaki.jp\/9\/ke9004\/benrihp060821\/2020.benrichou.ensan.pdf\">http:\/\/www.keins.city.kawasaki.jp\/9\/ke9004\/benrihp060821\/2020.benrichou.ensan.pdf<\/a><\/p>\n<blockquote><p>Vahvan suolahapon pitoisuus on 12 mol\/L. Joten, jotta saat 1 mol\/L pitoisuuden, sinun on laimennettava se 12-kertaiseksi. Koska kokonaism\u00e4\u00e4r\u00e4 on 12 ja suolahappoa on yksi osa, sekoita suolahappo ja vesi suhteessa 1:11.<\/p>\n<p>\u203b Huomio: Kun laimennat, \u00e4l\u00e4 koskaan lis\u00e4\u00e4 vett\u00e4 happoon tai em\u00e4kseen! Liukenemisreaktio voi synnytt\u00e4\u00e4 l\u00e4mp\u00f6\u00e4, jolloin vesi voi roiskua vaarallisesti. Muista aina lis\u00e4t\u00e4 happo tai em\u00e4s veteen.<\/p>\n<p><span style=\"font-size: small;\"><span style=\"color: blue; font-size: small;\"><b>\u3010Suolahapon tapauksessa\u3011<\/b><\/span><\/span><br \/>\n<span style=\"font-size: small;\">\u30fb Vahvan suolahapon pitoisuus on 12 mol\/L. Joten, jotta saat 1 mol\/L pitoisuuden, sinun on laimennettava se 12-kertaiseksi. Koska kokonaism\u00e4\u00e4r\u00e4 on 12 ja suolahappoa on yksi osa, sekoita suolahappo ja vesi suhteessa 1:11.<br \/>\n(Esimerkki) Lis\u00e4\u00e4 10 ml suolahappoa 110 ml:aan vett\u00e4.<br \/>\n\u203b Huomio: Kun laimennat, \u00e4l\u00e4 koskaan lis\u00e4\u00e4 vett\u00e4 happoon tai em\u00e4kseen! Liukenemisreaktio voi synnytt\u00e4\u00e4 l\u00e4mp\u00f6\u00e4, jolloin vesi voi roiskua vaarallisesti. Muista aina lis\u00e4t\u00e4 happo tai em\u00e4s veteen.<br \/>\n<span style=\"color: blue; font-size: small;\"><b>\u3010Ammoniakin tapauksessa\u3011<\/b><\/span><br \/>\n\u30fb Vahvan ammoniakin pitoisuus on 14 mol\/L. Joten, jotta saat 1 mol\/L ammoniakkiliuoksen, sekoita vahva ammoniakki ja vesi suhteessa 1:13.<br \/>\n\u203b Jos liuenneena aineena on neste, molaarisuus auttaa tavoitteen mukaisten pitoisuuksien saamisessa. Jos liuenneena aineena on kiinte\u00e4 aine, molekyylimassa auttaa.<\/span><\/p>\n<p>L\u00e4hde: <a href=\"http:\/\/www.edu.pref.kagoshima.jp\/curriculum\/rika\/shou\/syougakkou2\/gihouhtm\/01page\/page03.htm\">http:\/\/www.edu.pref.kagoshima.jp\/curriculum\/rika\/shou\/syougakkou2\/gihouhtm\/01page\/page03.htm<\/a><\/p><\/blockquote>\n<h2>Natriumhydroksidin laimentaminen<\/h2>\n<p><a href=\"https:\/\/direct.hpc-j.co.jp\/page\/sodium_hydroxide\">Natriumhydroksidiliuoksen pitoisuustaulukko<\/a><\/p>\n<blockquote><p><span style=\"font-size: small;\"><span style=\"color: blue; font-size: small;\"><b>\u3010Natriumhydroksidin tapauksessa\u3011<\/b><\/span><br \/>\n\u30fb Yksi mooli natriumhydroksidia on 40 g. Siksi, kun 40 g natriumhydroksidia liuotetaan litraan vett\u00e4, pitoisuus on 1 mol\/L.<br \/>\nKun valmistat 100 ml 1 mol\/L (4 %) natriumhydroksidiliuosta, liuota 4 g natriumhydroksidia 100 ml:aan vett\u00e4.<br \/>\n\u203b Natriumhydroksidin liukeneminen veteen on l\u00e4mp\u00f6\u00e4 vapauttava reaktio. Siksi on helpompi liuottaa se pieneen m\u00e4\u00e4r\u00e4\u00e4n vett\u00e4, odottaa veden l\u00e4mpenemist\u00e4 ja lis\u00e4t\u00e4 sitten loppu vesi.<\/span><\/p>\n<p>L\u00e4hde: <a href=\"http:\/\/www.edu.pref.kagoshima.jp\/curriculum\/rika\/shou\/syougakkou2\/gihouhtm\/01page\/page03.htm\">http:\/\/www.edu.pref.kagoshima.jp\/curriculum\/rika\/shou\/syougakkou2\/gihouhtm\/01page\/page03.htm<\/a><\/p>\n<p>\u25c6 Kun valmistat suuria m\u00e4\u00e4ri\u00e4 liuosta (yli 500 ml):<\/p>\n<p>Mittaa tislattu vesi valmistettavaan m\u00e4\u00e4r\u00e4\u00e4n sopivalla <a href=\"http:\/\/www.saitama-u.ac.jp\/ashida\/school\/mesushi2.htm\" target=\"_blank\" rel=\"noopener\">mittalasilla<\/a> (esim. 500 ml tai 1000 ml). Kaada puolet vedest\u00e4 suureen A-dekanteriin ja j\u00e4t\u00e4 loput mittalasiin.<\/p>\n<p>K\u00e4yt\u00e4 <a href=\"http:\/\/www.saitama-u.ac.jp\/ashida\/school\/tenbin.htm\" target=\"_blank\" rel=\"noopener\">vaakaa<\/a> mittaamaan natriumhydroksidi toiseen, B-dekanteriin. Lis\u00e4\u00e4 se v\u00e4litt\u00f6m\u00e4sti A-dekanterin tislattuun veteen ja sekoita hyvin. Lis\u00e4\u00e4 sitten mittalasiin j\u00e4\u00e4nyt tislattu vesi B-dekanteriin pohjalle j\u00e4\u00e4neen natriumhydroksidin liuottamiseksi ja kaada liuos A-dekanteriin.<\/p>\n<p>S\u00e4ilyt\u00e4 tarvittaessa reagenssipullossa ja kiinnit\u00e4 etiketti, jossa on kemikaalin nimi, pitoisuus, valmistusp\u00e4iv\u00e4 ja tekij\u00e4.<\/p>\n<p>\u25c6 Kun valmistat pieni\u00e4 m\u00e4\u00e4ri\u00e4 liuosta (alle 500 ml):<\/p>\n<p>Mittaa tislattu vesi valmistettavaan m\u00e4\u00e4r\u00e4\u00e4n sopivalla <a href=\"http:\/\/www.saitama-u.ac.jp\/ashida\/school\/mesushi2.htm\" target=\"_blank\" rel=\"noopener\">mittalasilla<\/a> (esim. 100 ml tai 200 ml).<\/p>\n<p>K\u00e4yt\u00e4 <a href=\"http:\/\/www.saitama-u.ac.jp\/ashida\/school\/tenbin.htm\" target=\"_blank\" rel=\"noopener\">vaakaa<\/a> mittaamaan natriumhydroksidi dekanteriin. Lis\u00e4\u00e4 v\u00e4litt\u00f6m\u00e4sti tislattu vesi ja sekoita hyvin.<\/p>\n<p>S\u00e4ilyt\u00e4 tarvittaessa reagenssipullossa ja kiinnit\u00e4 etiketti, jossa on kemikaalin nimi, pitoisuus, valmistusp\u00e4iv\u00e4 ja tekij\u00e4.<\/p>\n<p><a href=\"http:\/\/www.saitama-u.ac.jp\/ashida\/calcgrap\/apadj002.html\">http:\/\/www.saitama-u.ac.jp\/ashida\/calcgrap\/apadj002.html<\/a><\/p><\/blockquote>\n<h3>Kuparikloridin pitoisuuden s\u00e4\u00e4t\u00e4minen elektrolyysiss\u00e4<\/h3>\n<p>Kuparikloridin elektrolyysiliuosta varten k\u00e4ytimme 13 g kuparikloridia, johon lis\u00e4ttiin tislattua vett\u00e4, jotta kokonaispaino oli 300 g. Pitoisuus oli noin 3 %. Vaikka liuos on heikko, se riitt\u00e4\u00e4 kokeiluun. Lis\u00e4tietoa l\u00f6yd\u00e4t t\u00e4\u00e4lt\u00e4:<\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"ovf1YvBCY5\"><p><a href=\"https:\/\/phys-edu.net\/wp\/?p=41291\">\u30b7\u30e3\u30fc\u30da\u30f3\u306e\u82af\u304c\u96fb\u6975\u306b\uff01\u300c\u5869\u5316\u9285\u306e\u96fb\u6c17\u5206\u89e3\u300d\u3067\u5316\u5b66\u5909\u5316\u3092\u8ffd\u8de1\u3057\u3088\u3046\uff08\u30de\u30a4\u30af\u30ed\u30b9\u30b1\u30fc\u30eb\u5b9f\u9a13\u3067\u30a8\u30b3\u306b\uff01\uff09<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"&#8221;\u30b7\u30e3\u30fc\u30da\u30f3\u306e\u82af\u304c\u96fb\u6975\u306b\uff01\u300c\u5869\u5316\u9285\u306e\u96fb\u6c17\u5206\u89e3\u300d\u3067\u5316\u5b66\u5909\u5316\u3092\u8ffd\u8de1\u3057\u3088\u3046\uff08\u30de\u30a4\u30af\u30ed\u30b9\u30b1\u30fc\u30eb\u5b9f\u9a13\u3067\u30a8\u30b3\u306b\uff01\uff09&#8221; &#8212; \u79d1\u5b66\u306e\u30cd\u30bf\u5e33\" src=\"https:\/\/phys-edu.net\/wp\/?p=41291&#038;embed=true#?secret=iy4Czkd0DD#?secret=ovf1YvBCY5\" data-secret=\"ovf1YvBCY5\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<h3>Danielin pariston pitoisuuden s\u00e4\u00e4t\u00e4minen<\/h3>\n<p><a href=\"https:\/\/phys-edu.net\/wp\/?tag=%e7%a1%ab%e9%85%b8%e4%ba%9c%e9%89%9b\">#Sinkkisulfaatti<\/a>-liuos 5 %: 9,8 g sinkkisulfaattia ja 100 g vett\u00e4. <a href=\"https:\/\/phys-edu.net\/wp\/?tag=%e7%a1%ab%e9%85%b8%e9%8a%85\">#Kuparisulfaatti<\/a>-liuos n. 17 %: 35,7 g kuparisulfaattia ja 100 g vett\u00e4.<\/p>\n<p>Tarkemmat tiedot l\u00f6yd\u00e4t t\u00e4\u00e4lt\u00e4:<\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"CoAfvHzjrJ\"><p><a href=\"https:\/\/phys-edu.net\/wp\/?p=41649\">\u30a8\u30b3\u3067\u7c21\u5358\u3001\u5f8c\u7247\u4ed8\u3051\u3082\u697d\u3005\uff01 \u91cd\u306d\u308b\u3060\u3051\u306e\u300c\u30cf\u30f3\u30d0\u30fc\u30ac\u30fc\u5f0f\u30c0\u30cb\u30a8\u30eb\u96fb\u6c60\u300d\u5b9f\u9a13<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"&#8221;\u30a8\u30b3\u3067\u7c21\u5358\u3001\u5f8c\u7247\u4ed8\u3051\u3082\u697d\u3005\uff01 \u91cd\u306d\u308b\u3060\u3051\u306e\u300c\u30cf\u30f3\u30d0\u30fc\u30ac\u30fc\u5f0f\u30c0\u30cb\u30a8\u30eb\u96fb\u6c60\u300d\u5b9f\u9a13&#8221; &#8212; \u79d1\u5b66\u306e\u30cd\u30bf\u5e33\" src=\"https:\/\/phys-edu.net\/wp\/?p=41649&#038;embed=true#?secret=wVWM5qwLXJ#?secret=CoAfvHzjrJ\" data-secret=\"CoAfvHzjrJ\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<h3>Muita hy\u00f6dyllisi\u00e4 l\u00e4hteit\u00e4<\/h3>\n<blockquote><p>\uff0a Happamuuden ja em\u00e4ksisyyden testaus: T\u00e4ss\u00e4 kokeessa riitt\u00e4\u00e4, ett\u00e4 lakmuspaperin v\u00e4ri muuttuu. Yleens\u00e4 pitoisuus 0,3\u20131 mol\/L on riitt\u00e4v\u00e4. 0,3 mol\/L:n liuokseen suhde on vahva suolahappo:vesi = 1:39. \uff0a Metallien reaktio vetyyn: T\u00e4ss\u00e4 kokeessa tarvitaan korkeampaa pitoisuutta. Laimenna n. 3 mol\/L:n pitoisuuteen. Vahva suolahappo:vesi = 1:3.<\/p>\n<p>L\u00e4hde: <a href=\"http:\/\/xn--ss-1ja.or.jp\/nc\/?action=common_download_main&amp;upload_id=1169\">https:\/\/www.ice.or.jp\/nc\/?action=common_download_main&amp;upload_id=1169<\/a><\/p><\/blockquote>\n<div class=\"g-ytsubscribe\" data-channelid=\"UCBoF1yPvFnXnSJ_Xe5AmXcw\" data-layout=\"full\" data-count=\"default\">\n<h2><b>\u25c6 Lopuksi<\/b><\/h2>\n<p class=\"p3\">\u201cOnkohan t\u00e4m\u00e4 liian vahvaa?\u201d \u201cPit\u00e4isik\u00f6 minun laimentaa enemm\u00e4n?\u201d N\u00e4m\u00e4 ep\u00e4ilyt h\u00e4vi\u00e4v\u00e4t, kun tied\u00e4t, mit\u00e4 teet. Oikeanlainen laimentaminen lis\u00e4\u00e4 turvallisuutta laboratoriossa ja auttaa opettamaan oppilaille vastuullista tiedett\u00e4. Ole varovainen kemikaaleja k\u00e4sitelless\u00e4si ja v\u00e4lit\u00e4 samalla eteenp\u00e4in tieteen iloa ja kiehtovuutta!<\/p>\n<\/div>\n<h3>Yhteystiedot<\/h3>\n<p>Tutustu tieteen ihmeisiin hauskasti ja helposti! T\u00e4\u00e4lt\u00e4 l\u00f6yd\u00e4t vinkkej\u00e4 ja niksej\u00e4 hauskoihin kotikokeisiin.<br \/>\n\u30fbLis\u00e4tietoja minusta, Ken Kuwakosta, l\u00f6yd\u00e4t <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=188\">t\u00e4\u00e4lt\u00e4<\/a><br \/>\n\u30fbJos haluat tilata palveluitani (kirjoittaminen, luennot, tiedekerhot, TV-konsultointi, esiintymiset), ota yhteytt\u00e4 <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=188\">t\u00e4\u00e4ll\u00e4<\/a><br \/>\n<span class=\"s2\">\u30fbArtikkelip\u00e4ivitykset julkaistaan <a href=\"https:\/\/x.com\/kuwako\">X:ss\u00e4<\/a>!<\/span><\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.youtube.com\/user\/kkuwako\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-35048\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/3d9640dad7bc5538e76f92da1966ee19.jpg\" alt=\"\" width=\"30\" height=\"21\" \/><\/a><a href=\"https:\/\/www.youtube.com\/user\/kkuwako?sub_confirmation=1\">Kagaku no Neta Channel<\/a> (Tieteen juttuja -kanava) jakaa kokeiluvideoita!<\/p>\n<h3>\uff15\u6708\u306e\u30a4\u30c1\u30aa\u30b7\u5b9f\u9a13\uff01<\/h3>\r\n<p>\u30ad\u30fc\u30f3\u3068\u51b7\u3048\u308b\u30c9\u30e9\u30a4\u30a2\u30a4\u30b9\uff01\u6c17\u6e29\u304c\u4e0a\u304c\u3063\u3066\u304f\u308b\u3053\u306e\u6642\u671f\u30fb\u30c9\u30e9\u30a4\u30a2\u30a4\u30b9\u3092\u4f7f\u3063\u305f\u6607\u83ef\u30fb\u51dd\u7d50\u30fb\u7b49\u901f\u5ea6\u76f4\u7dda\u904b\u52d5\u306e\u5b9f\u9a13\u306f\u3044\u304b\u304c\uff1f<\/p>\r\n<p><img class=\"alignnone wp-image-39516 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/03\/0618612becc032a60bdda50090ccccbe.jpg\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/03\/0618612becc032a60bdda50090ccccbe.jpg 1406w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/03\/0618612becc032a60bdda50090ccccbe-300x168.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/03\/0618612becc032a60bdda50090ccccbe-1024x572.jpg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/03\/0618612becc032a60bdda50090ccccbe-768x429.jpg 768w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/03\/0618612becc032a60bdda50090ccccbe-320x180.jpg 320w\" alt=\"\" width=\"453\" height=\"253\" \/><\/p>\r\n<p style=\"text-align: center;\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=39513\">\u6db2\u4f53\u30bc\u30ed\uff01\u30c9\u30e9\u30a4\u30a2\u30a4\u30b9\u304c\u6d88\u3048\u308b\u307e\u3067\u306e\uff13\u6642\u9593\u3092\u79d1\u5b66\u3059\u308b\uff08\u6607\u83ef\u30fb\u51dd\u7d50\u30fb\u7b49\u901f\u5ea6\u76f4\u7dda\u904b\u52d5\uff09<\/a><\/p>\r\n<h3 style=\"text-align: left;\"><span style=\"font-size: medium;\"><b><strong>\u30c6\u30ec\u30d3\u756a\u7d44\u76e3\u4fee\u30fb\u30a4\u30d9\u30f3\u30c8\u7b49\u306e\u304a\u77e5\u3089\u305b<\/strong><\/b><\/span><\/h3>\r\n<ul>\r\n<li>4\u670830\u65e5\uff08\u6728\uff09\u300cTHE\u7a81\u7834\u30d5\u30a1\u30a4\u30eb\u300d\uff08\u65e5\u672c\u30c6\u30ec\u30d3\uff09\u306e<a href=\"https:\/\/phys-edu.net\/wp\/?p=62906\">\u79d1\u5b66\u76e3\u4fee\u3092\u62c5\u5f53\u3057\u307e\u3057\u305f<\/a>\u3002<\/li>\r\n<li>5\u67088\u65e5\uff08\u91d1\uff09<a href=\"https:\/\/phys-edu.net\/wp\/?p=62629\">\u7406\u79d1\u6559\u80b2\u30cb\u30e5\u30fc\u30b9<\/a>\u3092\u62c5\u5f53\u3057\u307e\u3057\u305f\u3002<\/li>\r\n<li>6\u670814\u65e5\uff08\u65e5\uff09\u3000\u5343\u8449\u5927\u5b66\u30a4\u30f3\u30b9\u30bf\u30ec\u30fc\u30b7\u30e7\u30f3\u300c\u63a2\u7a76\u300d\u306b\u3066\u8b1b\u5e2b\u3092\u52d9\u3081\u307e\u3059<\/li>\r\n<li>6\u670826\u65e5\uff08\u91d1\uff09\u3000\u5343\u8449\u5927\u5b66\u306e\u516c\u958b\u7814\u7a76\u4f1a\uff08\u4e2d\u5b66\u7406\u79d1\u306b\u3064\u3044\u3066\u6388\u696d\u516c\u958b\u4e88\u5b9a\uff09<\/li>\r\n<li>7\u670818\u65e5\uff08\u571f\uff09\u3000<a href=\"https:\/\/phys-edu.net\/wp\/?p=60018\">\u6559\u54e1\u5411\u3051\u5b9f\u9a13\u8b1b\u7fd2\u4f1a\u300c\u30ca\u30ea\u30ab\u30ab\u30b5\u30a4\u30a8\u30f3\u30b9\u30a2\u30ab\u30c7\u30df\u30fc\u300d\u306e\u8b1b\u5e2b\u3092\u3057\u307e\u3059<\/a>\u3002\u304a\u4f1a\u3044\u3057\u307e\u3057\u3087\u3046\u3002<\/li>\r\n<\/ul>\r\n<h3><b>\u66f8\u7c4d<strong>\u306e\u304a\u77e5\u3089\u305b<\/strong><\/b><\/h3>\r\n<ul>\r\n<li>\u300e\u5927\u4eba\u306e\u305f\u3081\u306e\u9ad8\u6821\u7269\u7406\u5fa9\u7fd2\u5e33\u300f\uff08\u8b1b\u8ac7\u793e\uff09\u2026\u4e00\u822c\u5411\u3051\u306b\u65e5\u5e38\u306e\u7269\u7406\u306b\u3064\u3044\u3066\u516c\u5f0f\u3092\u5143\u306b\u7d10\u89e3\u304d\u307e\u3057\u305f\u3002<a href=\"https:\/\/phys-edu.net\/wp\/?p=1827\">\u7279\u8a2d\u30b5\u30a4\u30c8<\/a>\u3067\u306f\u5b9f\u9a13\u3092\u591a\u6570\u7d39\u4ecb\u3057\u3066\u3044\u307e\u3059\u3002<strong>\u203b\u5897\u5237\u304c\u304b\u304b\u308a\uff16\u5237\u3068\u306a\u308a\u307e\u3057\u305f\uff082026\/02\/01\uff09<br \/><img class=\"alignnone wp-image-10940 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2013\/12\/0811159a99f69eeff1a357e3daed84e0-300x262.jpg\" sizes=\"(max-width: 220px) 100vw, 220px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2013\/12\/0811159a99f69eeff1a357e3daed84e0-300x262.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2013\/12\/0811159a99f69eeff1a357e3daed84e0.jpg 311w\" alt=\"\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8 2014-07-05 0.43.51\" width=\"220\" height=\"192\" \/><br \/><\/strong><\/li>\r\n<li>\u300e\u304d\u3081\u308b!\u5171\u901a\u30c6\u30b9\u30c8 \u7269\u7406\u57fa\u790e \u6539\u8a02\u7248\u300f\uff08\u5b66\u7814\uff09\u2026\u3000\u9ad8\u6821\u7269\u7406\u306e\u53c2\u8003\u66f8\u3067\u3059\u3002\u30a4\u30e9\u30b9\u30c8\u3092\u591a\u304f\u3057\u3066\u30a4\u30e1\u30fc\u30b8\u304c\u6301\u3066\u308b\u3088\u3046\u306b\u63cf\u304d\u307e\u3057\u305f\u3002\u6388\u696d\u306b\u3064\u3044\u3066\u3044\u3051\u306a\u3044\u3001\u7269\u7406\u304c\u82e6\u624b\u3001\u305d\u3093\u306a\u751f\u5f92\u306b\u304a\u3059\u3059\u3081\u3067\u3059\u3002<a href=\"https:\/\/phys-edu.net\/wp\/?p=45322\">\u7279\u8a2d\u30b5\u30a4\u30c8<\/a>\u306f\u3053\u3061\u3089\u3002<br \/><img class=\"alignnone wp-image-45718 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/04\/dc1da64a8c8d1422062b4867c0607a1c.jpg\" sizes=\"(max-width: 184px) 100vw, 184px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/04\/dc1da64a8c8d1422062b4867c0607a1c.jpg 756w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/04\/dc1da64a8c8d1422062b4867c0607a1c-300x269.jpg 300w\" alt=\"\" width=\"184\" height=\"165\" \/><\/li>\r\n<\/ul>\r\n<h3><span style=\"text-align: center;\">\u5404\u7a2eSNS\uff08\u66f4\u65b0\u60c5\u5831\u3092\u304a\u5c4a\u3051\uff01\uff09<\/span><\/h3>\r\n<p style=\"text-align: center;\"><a style=\"text-align: center;\" href=\"https:\/\/twitter.com\/kuwako\">X(Twitter)<\/a><span style=\"text-align: center;\">\uff0f<\/span><a style=\"text-align: center;\" href=\"https:\/\/www.instagram.com\/science_seeds\/\">instagram<\/a><span style=\"text-align: center;\">\uff0f<\/span><a style=\"text-align: center;\" href=\"https:\/\/www.facebook.com\/kuwakolab\/\">Facebook<\/a>\uff08\u65e5\u672c\u8a9e\uff09<\/p>\r\n<p style=\"text-align: center;\"><a style=\"text-align: center;\" href=\"https:\/\/bsky.app\/profile\/kagakunoneta.bsky.social\">BlueSky<\/a><span style=\"text-align: center;\">\uff0f<\/span><a style=\"text-align: center;\" href=\"https:\/\/www.threads.net\/@science_seeds?hl=ja\">Threads<\/a>\uff08\u82f1\u8a9e\uff09<\/p>\r\n<h3 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href=\"http:\/\/phys-edu.net\/wp\/?page_id=37\">About<\/a>\u00a0\u2026\u300c\u79d1\u5b66\u306e\u30cd\u30bf\u5e33\u300d\u306e\u30b3\u30f3\u30bb\u30d7\u30c8\u3084\u3001\u904b\u55b6\u8005\u3067\u3042\u308b\u6851\u5b50\u7814\u306e\u30d7\u30ed\u30d5\u30a3\u30fc\u30eb\u30fb\u60f3\u3044\u3092\u307e\u3068\u3081\u3066\u3044\u307e\u3059\u3002<\/li>\r\n<li><a href=\"https:\/\/phys-edu.net\/wp\/?page_id=188\">\u304a\u554f\u3044\u5408\u308f\u305b<\/a> \u2026\u5b9f\u9a13\u6559\u5ba4\u306e\u3054\u4f9d\u983c\u3001\u57f7\u7b46\u30fb\u8b1b\u6f14\u306e\u76f8\u8ac7\u3001\u79d1\u5b66\u76e3\u4fee\u7b49\u306f\u3053\u3061\u3089\u306e\u30d5\u30a9\u30fc\u30e0\u304b\u3089\u304a\u5bc4\u305b\u304f\u3060\u3055\u3044\u3002<\/li>\r\n<\/ul>\r\n","protected":false},"excerpt":{"rendered":"<p>Hei, olen tiedekouluttaja Ken Kuwako. Joka p\u00e4iv\u00e4 on kokeilu. \u3010Lue t\u00e4m\u00e4 artikkeli englanniksi\u3011 Kun k\u00e4sittelet k [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":48579,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_sitemap_exclude":false,"_sitemap_priority":"","_sitemap_frequency":"","sns_share_botton_hide":"","vkExUnit_sns_title":"","vkexunit_cta_each_option":"","_lightning_design_setting":{"layout":"default"},"footnotes":""},"categories":[1630],"tags":[],"class_list":["post-52814","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category--fi"],"jetpack_featured_media_url":"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/04\/cc621f1d3be999c49adc05edc33c39f8.jpg","jetpack-related-posts":[{"id":54611,"url":"https:\/\/phys-edu.net\/wp\/?p=54611&lang=fi","url_meta":{"origin":52814,"position":0},"title":"\u201cMik\u00e4 on pitkitt\u00e4isaalto?\u201d Selitys yhdell\u00e4 iskulla! Jousi paljastaa aaltojen perusteet ja maanj\u00e4ristysh\u00e4lytysten salaisuudet","author":"\u6851\u5b50 \u7814","date":"2025\u5e7410\u670819\u65e5","format":false,"excerpt":"Olen tiedekouluttaja Ken Kuwako. Joka p\u00e4iv\u00e4 on koe\u2026","rel":"","context":"Science","block_context":{"text":"Science","link":"https:\/\/phys-edu.net\/wp\/?cat=1630&lang=fi"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2014\/04\/4b636635d8684417e12ce31de061741f.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2014\/04\/4b636635d8684417e12ce31de061741f.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2014\/04\/4b636635d8684417e12ce31de061741f.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":58989,"url":"https:\/\/phys-edu.net\/wp\/?p=58989&lang=fi","url_meta":{"origin":52814,"position":1},"title":"Miksi se ei kaadu? Fysiikan laeilla rakennettu \u201c\u00e4\u00e4ret\u00f6n kirnatorni\u201d","author":"\u6851\u5b50 \u7814","date":"2026\u5e741\u670818\u65e5","format":false,"excerpt":"Tervehdys, olen tiedevalmentaja Ken Kuwako! Joka p\u2026","rel":"","context":"Science","block_context":{"text":"Science","link":"https:\/\/phys-edu.net\/wp\/?cat=1630&lang=fi"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2017\/09\/50955c493becd482a645e7d616c00fb1.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2017\/09\/50955c493becd482a645e7d616c00fb1.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2017\/09\/50955c493becd482a645e7d616c00fb1.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2017\/09\/50955c493becd482a645e7d616c00fb1.png?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2017\/09\/50955c493becd482a645e7d616c00fb1.png?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":52882,"url":"https:\/\/phys-edu.net\/wp\/?p=52882&lang=fi","url_meta":{"origin":52814,"position":2},"title":"Minne theta (\u03b8) oikein menee? 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