{"id":65381,"date":"2026-07-15T04:48:07","date_gmt":"2026-07-14T19:48:07","guid":{"rendered":"https:\/\/phys-edu.net\/wp\/?p=65381"},"modified":"2026-07-15T04:48:07","modified_gmt":"2026-07-14T19:48:07","slug":"neutralization-with-a-tiny-bottle-unlocking-the-secrets-of-hydrochloric-acid-and-sodium-hydroxide-through-microscale-experiments","status":"publish","type":"post","link":"https:\/\/phys-edu.net\/wp\/?p=65381&lang=en","title":{"rendered":"Neutralization with a Tiny Bottle!? Unlocking the Secrets of Hydrochloric Acid and Sodium Hydroxide Through Microscale Experiments"},"content":{"rendered":"<p style=\"text-align: center;\"><span style=\"color: #339966;\"><strong>I&#8217;m Ken Kuwako, the Science Trainer. Every day is an experiment.<\/strong><\/span><\/p>\n<p>Have you ever thought, &#8220;Using lots of chemicals in science experiments can&#8217;t be very good for the environment&#8230;&#8221;? Fortunately, there&#8217;s a clever solution: micro-scale experiments. In this article, we&#8217;ll use this eco-friendly approach to explore the neutralization reaction between hydrochloric acid and sodium hydroxide.<\/p>\n<h3>What Is a Micro-Scale Experiment?<\/h3>\n<p>As the name suggests, a micro-scale experiment is one that uses <b>very small amounts of chemicals<\/b>. Since less chemical is used, much less waste liquid is produced afterward. That makes it a much <b>more environmentally friendly way to experiment<\/b>.<\/p>\n<p>For this activity, we used 1 mol\/L hydrochloric acid and 1 mol\/L sodium hydroxide, along with a tiny dropper container called a &#8220;Petit Bottle.&#8221;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-38007 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/09\/1cab2d380c94de64f74109e22f419061.jpg\" alt=\"\" width=\"358\" height=\"289\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/09\/1cab2d380c94de64f74109e22f419061.jpg 1130w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/09\/1cab2d380c94de64f74109e22f419061-300x242.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/09\/1cab2d380c94de64f74109e22f419061-1024x826.jpg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/09\/1cab2d380c94de64f74109e22f419061-768x620.jpg 768w\" sizes=\"auto, (max-width: 358px) 100vw, 358px\" \/><\/p>\n<p>We added one drop at a time into a test tube while carefully watching the color change of the BTB solution. The goal of a neutralization experiment is to find the exact point where the acid and the alkali perfectly cancel each other out, so paying close attention to every color change is essential.<\/p>\n<h3>Discovering the Importance of a Single Drop<\/h3>\n<p>In many traditional experiments, chemicals are added in 1 mL portions using a pipette.<\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"S0XAgFOKHa\"><p><a href=\"https:\/\/phys-edu.net\/wp\/?p=42228\">\u9178\u3068\u30a2\u30eb\u30ab\u30ea\u304c\u51fa\u4f1a\u3063\u305f\u3089\uff1f\u76ee\u306b\u898b\u3048\u308b\u5316\u5b66\u306e\u30c9\u30e9\u30de\u300c\u4e2d\u548c\u306e\u7d50\u6676\u300d\u3092\u4f5c\u308d\u3046\uff08\u5869\u9178\u3068\u6c34\u9178\u5316\u30ca\u30c8\u30ea\u30a6\u30e0\u3092\u4f7f\u3063\u305f\u4e2d\u548c\u5b9f\u9a13\uff09<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"\u201c\u9178\u3068\u30a2\u30eb\u30ab\u30ea\u304c\u51fa\u4f1a\u3063\u305f\u3089\uff1f\u76ee\u306b\u898b\u3048\u308b\u5316\u5b66\u306e\u30c9\u30e9\u30de\u300c\u4e2d\u548c\u306e\u7d50\u6676\u300d\u3092\u4f5c\u308d\u3046\uff08\u5869\u9178\u3068\u6c34\u9178\u5316\u30ca\u30c8\u30ea\u30a6\u30e0\u3092\u4f7f\u3063\u305f\u4e2d\u548c\u5b9f\u9a13\uff09\u201d \u2014 \u79d1\u5b66\u306e\u30cd\u30bf\u5e33\" src=\"https:\/\/phys-edu.net\/wp\/?p=42228&amp;embed=true#?secret=SIQQAxepQa#?secret=S0XAgFOKHa\" data-secret=\"S0XAgFOKHa\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<p>With a Petit Bottle, however, <b>you can control the amount one tiny drop at a time<\/b>. It&#8217;s a bit like adding seasoning little by little while cooking until the flavor is just right.<\/p>\n<p>That said, using the bottle takes a little practice. To produce neat, consistent drops, you need to aim carefully so the liquid doesn&#8217;t stick to the side of the test tube. This simple technique is actually a great way to develop two important scientific skills: accuracy and reproducibility.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-38051 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/09\/14457ce8a378479994f86b1decc3c5b3.jpg\" alt=\"\" width=\"453\" height=\"358\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/09\/14457ce8a378479994f86b1decc3c5b3.jpg 698w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/09\/14457ce8a378479994f86b1decc3c5b3-300x237.jpg 300w\" sizes=\"auto, (max-width: 453px) 100vw, 453px\" \/><\/p>\n<h3>What Happens After the Water Evaporates?<\/h3>\n<p>The fun doesn&#8217;t end with the color change.<\/p>\n<p>We placed both the hydrochloric acid solution before neutralization and the neutralized solution into separate evaporating dishes, then gently evaporated the water.<\/p>\n<p>What do you think was left behind?<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-38008 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/09\/87875486f6bda7987959ea1d338b31e4.jpg\" alt=\"\" width=\"475\" height=\"435\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/09\/87875486f6bda7987959ea1d338b31e4.jpg 924w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/09\/87875486f6bda7987959ea1d338b31e4-300x275.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/09\/87875486f6bda7987959ea1d338b31e4-768x703.jpg 768w\" sizes=\"auto, (max-width: 475px) 100vw, 475px\" \/><\/p>\n<p>It&#8217;s a little difficult to see in the photo, but the dish on the left contains hydrochloric acid with BTB indicator, while the one on the right contains the neutralized solution, adjusted to be slightly acidic. On the right, you can spot <b>a fine white powder<\/b>.<\/p>\n<h3>The White Powder Is Something You Eat Every Day<\/h3>\n<p>That mysterious white powder is sodium chloride (NaCl), produced when hydrochloric acid (HCl) reacts with sodium hydroxide (NaOH). In other words, it&#8217;s simply <b>table salt<\/b>.<\/p>\n<p>The neutralization reaction can be written like this:<\/p>\n<p style=\"text-align: center;\">Hydrochloric Acid + Sodium Hydroxide \u2192 Sodium Chloride + Water<\/p>\n<p>Whenever an acid reacts with an alkali, the products are water and a substance known as a &#8220;salt.&#8221; In this particular experiment, that salt just happens to be ordinary table salt.<\/p>\n<p>One of the most exciting moments in chemistry is seeing an invisible reaction suddenly become visible. After the water evaporates, the dissolved salt appears as tiny white crystals\u2014a satisfying piece of evidence that the reaction really happened.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-38052 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/09\/efe7d5fb2c751fa6329785a459003a10.jpg\" alt=\"\" width=\"533\" height=\"334\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/09\/efe7d5fb2c751fa6329785a459003a10.jpg 1048w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/09\/efe7d5fb2c751fa6329785a459003a10-300x188.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/09\/efe7d5fb2c751fa6329785a459003a10-1024x641.jpg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/09\/efe7d5fb2c751fa6329785a459003a10-768x481.jpg 768w\" sizes=\"auto, (max-width: 533px) 100vw, 533px\" \/><\/p>\n<h3>Perfect for Small-Group Learning<\/h3>\n<p>Another advantage of micro-scale experiments is that they require so little chemical that <b>one setup can easily be shared by just two students<\/b>. Instead of a large group crowding around a single experiment, everyone gets more opportunities to handle the equipment, make observations, and think through the results themselves.<\/p>\n<p>A tiny bottle produced just a tiny pinch of white powder\u2014but inside that powder was the story of one of chemistry&#8217;s most fundamental reactions. Sometimes, the smallest experiments reveal the biggest scientific ideas.<\/p>\n<h3>Contact &amp; Requests<\/h3>\n<p>Science is full of surprises, and it&#8217;s even more fun when you can experience it yourself! This site is packed with easy-to-understand science experiments you can try at home, along with practical tips to help them succeed. Feel free to explore!<\/p>\n<p>\u30fbThe Science Notebook has been published as a book. Learn more <a href=\"https:\/\/amzn.to\/42PMCEL\">here<\/a>.<br \/>\n\u30fbRead more about Ken Kuwako <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=37\">here<\/a>.<br \/>\n\u30fbFor writing, lectures, science workshops, TV consulting, media appearances, and other inquiries, click <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=188\">here<\/a>.<br \/>\n<span class=\"s2\">\u30fbFollow updates on new articles <a href=\"https:\/\/x.com\/kuwako\">on X<\/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\">Science Notebook Channel<\/a> features fun science experiment videos!<\/p>\n<h3>\uff19\u6708\u306e\u30a4\u30c1\u30aa\u30b7\u5b9f\u9a13\uff01<\/h3>\r\n\u304a\u5f01\u5f53\u7bb1\u3092\u30d7\u30e9\u30d0\u30f3\u304c\u308f\u308a\u306b\u3057\u3066\u30ad\u30fc\u30db\u30eb\u30c0\u30fc\u3092\u4f5c\u308d\u3046\uff01\r\n<p style=\"text-align: center;\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=35313\">\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u304a\u5f01\u5f53\u7bb1\u3092\u4f7f\u3063\u305f\u30ad\u30fc\u30db\u30eb\u30c0\u30fc\u4f5c\u308a\uff01<\/a><\/p>\r\n<p style=\"text-align: center;\"><img class=\"alignnone wp-image-35705 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/04\/69951296b11caa484208330661c3ad16.jpg\" sizes=\"auto, (max-width: 449px) 100vw, 449px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/04\/69951296b11caa484208330661c3ad16.jpg 1008w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/04\/69951296b11caa484208330661c3ad16-300x130.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/04\/69951296b11caa484208330661c3ad16-768x334.jpg 768w\" alt=\"\" width=\"449\" height=\"195\" \/><\/p>\r\n\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 \t<li>\uff18\u6708\uff12\uff17\u65e5\uff08\u6728\uff09\u79d1\u5b66\u76e3\u4fee\u756a\u7d44\u653e\u9001\u4e88\u5b9a<\/li>\r\n \t<li>\uff19\u6708\uff12\uff10\u65e5\uff08\u65e5\uff09\u30c0\u30d3\u30f3\u30c1\u30de\u30b9\u30bf\u30fc\u30ba\u51fa\u6f14\u4e88\u5b9a<\/li>\r\n \t<li>\uff11\uff10\u6708\uff11\uff10\u65e5\uff08\u571f\uff0911:15~12:00\u3000<a href=\"https:\/\/phys-edu.net\/wp\/?p=66205\">\u5343\u8449\u5e02\u79d1\u5b66\u30d5\u30a7\u30b9\u30bf2026\u300c\u6851\u5b50\u5148\u751f\u306e\u56de\u8ee2\u79d1\u5b66\u30b7\u30e7\u30fc\u300d\u306b\u3066\u30b5\u30a4\u30a8\u30f3\u30b9\u30b7\u30e7\u30fc\u3092\u884c\u3044\u307e\u3059<\/a>\u3002<\/li>\r\n \t<li>12\u670826\u65e5\uff08\u571f\uff09\u3000<a href=\"https:\/\/phys-edu.net\/wp\/?p=64825\">\u30ca\u30ea\u30ab\u30b5\u30a4\u30a8\u30f3\u30b9\u30a2\u30ab\u30c7\u30df\u30fc\uff08\u6559\u54e1\u5411\u3051\u5b9f\u9a13\u8b1b\u7fd2\u4f1a\uff09\u958b\u50ac<\/a><\/li>\r\n<\/ul>\r\n<h3><b>\u66f8\u7c4d<strong>\u306e\u304a\u77e5\u3089\u305b<\/strong><\/b><\/h3>\r\n<ul>\r\n \t<li>\u300e<a href=\"https:\/\/phys-edu.net\/wp\/?p=64462\">\u9ad8\u6821\u5165\u8a66 \u5206\u89e3\u554f\u984c\u96c6 \u7406\u79d1<\/a>\u300f\uff08\u5b66\u7814\uff09\u2026\u96e3\u3057\u3044\u554f\u984c\u3082\u5c0f\u3055\u306a\u554f\u984c\u306b\u5206\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u554f\u984c\u3092\u89e3\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u305d\u3093\u306a\u5206\u89e3\u306e\u6280\u8853\u304c\u8eab\u306b\u3064\u304f\u3088\u3046\u306b\u6df1\u304f\u95a2\u308f\u308a\u3092\u6301\u3063\u3066\u4f5c\u308a\u307e\u3057\u305f\u3002\r\n<a href=\"https:\/\/phys-edu.net\/wp\/?p=64462\"><img class=\"alignnone  wp-image-65097 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/07\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-07-04-8.40.17.jpeg\" alt=\"\" width=\"172\" height=\"244\" \/><\/a>\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\r\n<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\" \/><\/strong><\/li>\r\n \t<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\r\n<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;\">\u3010\u65e5\u672c\u8a9e\u3011<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>\u3000\u3010\u82f1\u8a9e\u3011<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><\/p>\r\n\r\n<h3 style=\"text-align: center;\"><strong>Explore<\/strong><\/h3>\r\n<ul>\r\n \t<li><a href=\"https:\/\/phys-edu.net\/wp\/?page_id=30764\">\u697d\u3057\u3044\u5b9f\u9a13<\/a>\u2026\u304a\u5b50\u3055\u3093\u3068\u4e00\u7dd2\u306b\u5922\u4e2d\u306b\u306a\u308c\u308b\u30a4\u30c1\u30aa\u30b7\u306e\u79d1\u5b66\u5b9f\u9a13\u3092\u591a\u6570\u7d39\u4ecb\u3057\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u3001\u9ad8\u6821\u7269\u7406\u306e\u7406\u89e3\u3092\u6df1\u3081\u308b\u305f\u3081\u306e\u52d5\u753b\u6559\u6750\u3082\u7528\u610f\u3057\u307e\u3057\u305f\u3002<\/li>\r\n \t<li><a 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href=\"https:\/\/phys-edu.net\/wp\/?page_id=188\">\u304a\u554f\u3044\u5408\u308f\u305b<\/a>\u00a0\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>","protected":false},"excerpt":{"rendered":"<p>I&#8217;m Ken Kuwako, the Science Trainer. Every day is an experiment. Have you ever thought, &#8220;Using lot [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":38007,"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":"","jetpack_post_was_ever_published":false},"categories":[781],"tags":[],"class_list":["post-65381","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-science-en"],"jetpack-related-posts":[{"id":60230,"url":"https:\/\/phys-edu.net\/wp\/?p=60230&lang=en","url_meta":{"origin":65381,"position":0},"title":"What Happens When Acid Meets Base? 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For me, every d\u2026","rel":"","context":"Science","block_context":{"text":"Science","link":"https:\/\/phys-edu.net\/wp\/?cat=781&lang=en"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/04\/cc621f1d3be999c49adc05edc33c39f8.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/04\/cc621f1d3be999c49adc05edc33c39f8.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/04\/cc621f1d3be999c49adc05edc33c39f8.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/04\/cc621f1d3be999c49adc05edc33c39f8.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":53043,"url":"https:\/\/phys-edu.net\/wp\/?p=53043&lang=en","url_meta":{"origin":65381,"position":2},"title":"[No More Confusion!] The Ultimate Chemistry Recipe to Convert Mass Percent, Molarity, Normality (N), and ppm with Ease","author":"\u6851\u5b50 \u7814","date":"2025\u5e749\u670824\u65e5","format":false,"excerpt":"This is Ken Kuwako, the Science Trainer. 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Every day is\u2026","rel":"","context":"Science","block_context":{"text":"Science","link":"https:\/\/phys-edu.net\/wp\/?cat=781&lang=en"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/02\/%E3%82%B9%E3%82%AF%E3%83%AA%E3%83%BC%E3%83%B3%E3%82%B7%E3%83%A7%E3%83%83%E3%83%88-2026-01-29-9.50.26.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/02\/%E3%82%B9%E3%82%AF%E3%83%AA%E3%83%BC%E3%83%B3%E3%82%B7%E3%83%A7%E3%83%83%E3%83%88-2026-01-29-9.50.26.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/02\/%E3%82%B9%E3%82%AF%E3%83%AA%E3%83%BC%E3%83%B3%E3%82%B7%E3%83%A7%E3%83%83%E3%83%88-2026-01-29-9.50.26.jpeg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/02\/%E3%82%B9%E3%82%AF%E3%83%AA%E3%83%BC%E3%83%B3%E3%82%B7%E3%83%A7%E3%83%83%E3%83%88-2026-01-29-9.50.26.jpeg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":65175,"url":"https:\/\/phys-edu.net\/wp\/?p=65175&lang=en","url_meta":{"origin":65381,"position":4},"title":"The Magical White Cloud Born from &#8220;Neutralization&#8221;: The Surprising Chemistry Between Limewater and Carbon Dioxide","author":"\u6851\u5b50 \u7814","date":"2026\u5e747\u67086\u65e5","format":false,"excerpt":"I'm Ken Kuwako, a science communicator. 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