{"id":48021,"date":"2026-07-30T09:00:19","date_gmt":"2026-07-30T00:00:19","guid":{"rendered":"https:\/\/blog.agentsoft.co.kr\/index.php\/2026\/07\/30\/48021\/"},"modified":"2026-07-30T09:00:19","modified_gmt":"2026-07-30T00:00:19","slug":"a-%eb%a0%88%ed%8f%ac%ed%8a%b8-%eb%b6%84%ec%84%9d%ed%99%94%ed%95%99%ec%8b%a4%ed%97%98-3-preparation-standardization-of-free-carbonated-0-1-m-naoh","status":"publish","type":"post","link":"https:\/\/blog.agentsoft.co.kr\/index.php\/2026\/07\/30\/48021\/","title":{"rendered":"[A+ \ub808\ud3ec\ud2b8] \ubd84\uc11d\ud654\ud559\uc2e4\ud5d8 3. Preparation &amp; standardization of free carbonated 0.1 M NaOH"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/image4.happycampus.com\/Production\/thumbnail\/2024\/07\/10\/data30117449-0001.jpg\"><img decoding=\"async\" src=\"https:\/\/image4.happycampus.com\/Production\/thumbnail\/2024\/07\/10\/data30117449-0002.jpg\"><\/p>\n<p><strong>\ubaa9\ucc28<\/strong><\/p>\n<p>1. Principle &amp; object<br \/>\n2. Reagents<br \/>\n3. Apparatus &amp; Instruments<br \/>\n4. Procedure (\uc7a5\uce58\ub3c4, \uae30\uae30 \uc0ac\uc6a9\ubc95 \ud3ec\ud568)<br \/>\n5. Result (\ubc18\uc751\uc2dd\uacfc \uacc4\uc0b0\uc2dd \ud3ec\ud568)<br \/>\n6. Homework (\uace0\ucc30)<\/p>\n<p><strong>\ubcf8\ubb38\ub0b4\uc6a9<\/strong><\/p>\n<p>4-1. Principle<br \/>\nNaOH \ud45c\uc900\uc6a9\uc561\uc744 \uc870\uc81c\ud558\uace0, \ubab0\ub18d\ub3c4\ub97c \uad6c\ud558\uae30 \uc704\ud574 \uc9c0\uc2dc\uc57d (phenolphthalein) \ucca8\uac00 \ub610\ub294 pH meter \uc804\uadf9\uc744 \uc0bd\uc785\ud55c\ub2e4. \uc544\ub798\uc758 \ubc18\uc751\uc2dd\uc744 \ud1b5\ud558\uc5ec 1\ucc28 \ud45c\uc900\ubb3c\uc9c8\uc778 Potassium Hydrogen Phthalate \ub610\ub294 2\ucc28 \ud45c\uc900\ubb3c\uc9c8\uc778 HCl \ud45c\uc900\uc6a9\uc561\uc73c\ub85c \ud45c\uc900\ud654\ud55c\ub2e4. NaOH\ub294 \uc870\ud574\uc131\uc774 \uc788\uace0, \uc774\uc0b0\ud654\ud0c4\uc18c\ub97c \ud761\uc218\ud558\uc5ec \ud0c4\uc0b0\uc5fc\uc744 \uc0dd\uc131\ud558\uae30 \ub54c\ubb38\uc5d0 top loading balance\ub97c \uc774\uc6a9\ud558\uc5ec \ube60\ub974\uac8c \uce21\uc815\ud574\uc57c \ud55c\ub2e4. \ub610\ud55c, \uc720\ub9ac\ub97c \ub179\uc774\ub294 \uc131\uc9c8\uc774 \uc788\uc73c\ubbc0\ub85c \uc720\ub9ac\uc758 \uc0ac\uc6a9\uc744 \ucd5c\uc18c\ud654\ud574\uc57c \ud55c\ub2e4.<br \/>\n (\uc2dd 3-1)<br \/>\n (\uc2dd 3-2)<br \/>\n4-2. Object<br \/>\n\uc0b0-\uc5fc\uae30 \uc911\ud654\ubc18\uc751\uc744 \uc774\uc6a9\ud574\uc11c \uc9c0\uc2dc\uc57d\ubc95, \uc804\uc704\ucc28\ubc95\uc73c\ub85c \uc885\ub9d0\uc810\uae4c\uc9c0\uc758 \uc801\uc815 \uc18c\ube44\ub7c9\uc744 \uad6c\ud558\uc5ec \uc5fc\uae30 \ud45c\uc900\uc6a9\uc561\uc758 \uc870\uc81c \ubc0f \ud45c\uc900\ud654\uc758 \uc6d0\ub9ac\uc640 \ubc29\ubc95\uc744 \uc774\ud574\ud558\ub294 \uac83\uc774 \uc774 \uc2e4\ud5d8\uc758 \ubaa9\uc801\uc774\ub2e4.<br \/>\ni. Reagents<br \/>\n\u2460 HCl (36.46 g\/mol, Hydrochloric acid, \uc5fc\uc0b0, d=1.18 g\/cm\u00b3, bp=-85.05\u2103, mp=-114.22\u2103, \ud53c\ubd80\uc5d0 \ub2ff\uc9c0 \uc54a\ub3c4\ub85d \uc8fc\uc758\ud55c\ub2e4.)<br \/>\n\u2461 NaOH(40 g\/mol, Sodium hydroxide, \uc218\uc0b0\ud654\uc18c\ub4d0, d=2.13 g\/cm\u00b3, bp=1390\u2103, mp=318\u2103, \uc5f4, \uac00\uc5f0\uc131 \ubb3c\uc9c8, \ud658\uc6d0\uc131 \ubb3c\uc9c8\uacfc \uae08\uc18d\uc744 \ud53c\ud558\uace0, \ud53c\ubd80\uc5d0 \uc811\ucd09\ud558\uc9c0 \uc54a\ub3c4\ub85d \uc8fc\uc758\ud55c\ub2e4.)<br \/>\n\u2462 H2O(18.01528 g\/mol, Water, \ubb3c, d=1 g\/cm\u00b3 (4\u2103), bp=100\u00b0C, mp=0\u00b0C, \uc0c1\uc628\uc0c1\uc555\uc870\uac74\uc5d0\uc11c \uc548\uc815\ud558\uba70, \uc5f4, \uc624\uc5fc \ubc0f \ubb3c \ubc18\uc751\uc131 \ubb3c\uc9c8\uc744 \ud53c\ud574\uc57c \ud55c\ub2e4.)<br \/>\n\u2463 C8H5KO4(204.22 g\/mol, Potassium hydrogen phthalate, \uc218\uc18c\ud654 \ud3ec\ud0c0\uc298 \ud504\ud0c8\uc0b0, d=1.64 g\/cm\u00b3, bp=378.3\u00b0C, mp=295\u00b0C, \uc5f4, \uc2a4\ud30c\ud06c, \ud654\uc5fc \ub4f1 \uc810\ud654\uc6d0\uacfc \uac00\uc5f0\uc131 \ubb3c\uc9c8 \ubc0f \ud658\uc6d0\uc131 \ubb3c\uc9c8\uc744 \ud53c\ud55c\ub2e4. \ub208\uacfc \ud53c\ubd80, \ud638\ud761\uae30\uc5d0 \uc790\uadf9\uc744 \uc77c\uc73c\ud0ac \uc218 \uc788\ub2e4.)<br \/>\n\u2464 C20H14O4(318.31 g\/mol, Phenolphthalein, \ud398\ub180\ud504\ud0c8\ub808\uc778, d=1.3 g\/cm\u00b3, bp=450\u00b0C \uc774\uc0c1, mp=\uc57d 263.7\u2103, \uc5f4, \ud654\uc5fc, \uc2a4\ud30c\ud06c \ubc0f \uc810\ud654\uc6d0\uc744 \ud53c\ud574\uc57c \ud558\uba70, \ub208\uacfc \ud53c\ubd80\uc5d0 \uc2ec\ud55c \uc790\uadf9\uc774 \ub420 \uc218 \uc788\ub2e4.)<br \/>\n\u2465 Buffer solution(pH 4, 7)<\/p>\n<p>\ucd9c\ucc98 : <a href=\"https:\/\/www.happycampus.com\/report-doc\/30117449\/\" target=\"_blank\">\ud574\ud53c\ucea0\ud37c\uc2a4<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\ubaa9\ucc28 1. Principle &amp; object 2. Reagents 3. Apparatus &amp; Instruments 4. Procedure (\uc7a5\uce58\ub3c4, \uae30\uae30 \uc0ac\uc6a9\ubc95 \ud3ec\ud568) 5. Result (\ubc18\uc751\uc2dd\uacfc \uacc4\uc0b0\uc2dd \ud3ec\ud568) 6. Homework (\uace0\ucc30) \ubcf8\ubb38\ub0b4\uc6a9 4-1. Principle NaOH \ud45c\uc900\uc6a9\uc561\uc744 \uc870\uc81c\ud558\uace0, \ubab0\ub18d\ub3c4\ub97c \uad6c\ud558\uae30 \uc704\ud574 \uc9c0\uc2dc\uc57d (phenolphthalein) \ucca8\uac00 \ub610\ub294 pH meter \uc804\uadf9\uc744 \uc0bd\uc785\ud55c\ub2e4. \uc544\ub798\uc758 \ubc18\uc751\uc2dd\uc744 \ud1b5\ud558\uc5ec 1\ucc28 \ud45c\uc900\ubb3c\uc9c8\uc778 Potassium Hydrogen Phthalate \ub610\ub294 2\ucc28 \ud45c\uc900\ubb3c\uc9c8\uc778 HCl \ud45c\uc900\uc6a9\uc561\uc73c\ub85c [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[58456,27868,58428,58455,58457],"class_list":["post-48021","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-php","tag-27868","tag-58428","tag-58455","tag-58457"],"_links":{"self":[{"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/posts\/48021","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/comments?post=48021"}],"version-history":[{"count":0,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/posts\/48021\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/media?parent=48021"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/categories?post=48021"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/tags?post=48021"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}