{"id":47989,"date":"2026-07-29T09:02:37","date_gmt":"2026-07-29T00:02:37","guid":{"rendered":"https:\/\/blog.agentsoft.co.kr\/index.php\/2026\/07\/29\/47989\/"},"modified":"2026-07-29T09:02:37","modified_gmt":"2026-07-29T00:02:37","slug":"a-%eb%a7%8c%ec%a0%90-%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%98-5-determination-of-sodium-carbonate-and-sodium-hydrogen-carbonate-in-a-sample-determination","status":"publish","type":"post","link":"https:\/\/blog.agentsoft.co.kr\/index.php\/2026\/07\/29\/47989\/","title":{"rendered":"[A+ \ub9cc\uc810 \ub808\ud3ec\ud2b8] \ubd84\uc11d\ud654\ud559\uc2e4\ud5d8 5. Determination of sodium carbonate and sodium hydrogen carbonate in a sample (Determination of alkalinity)"},"content":{"rendered":"

<\/p>\n

\ubaa9\ucc28<\/strong><\/p>\n

1. Principle & object
\n2. Reagents
\n3. Apparatus & Instruments
\n4. Procedure (\uc7a5\uce58\ub3c4, \uae30\uae30 \uc0ac\uc6a9\ubc95 \ud3ec\ud568)
\n5. Result (\ubc18\uc751\uc2dd\uacfc \uacc4\uc0b0\uc2dd, \uc608\uc0c1\ub2f9\ub7c9\uc810 \ud3ec\ud568)
\n6. Homework (\uace0\ucc30)<\/p>\n

\ubcf8\ubb38\ub0b4\uc6a9<\/strong><\/p>\n

4-2. Object
\n\uc5fc\uae30 \ud63c\ud569\ubb3c\uc744 \uc815\ub7c9\ud560 \ub54c\uc5d0\ub294 \ub3d9\uc77c\ud55c \uc591\uc758 \uc2dc\ub8cc\ub97c 2\uac1c \ub9cc\ub4e4\uc5b4 \ubcc4\ub3c4\ub85c \uc801\uc815\ud558\ub294 \u2018winkler \ubc29\ubc95\u2019\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub2e4. \uccab \ubc88\uc9f8 \uc801\uc815\uc5d0\uc11c\ub294 \ud63c\ud569\ubb3c\uc744 \uc9c0\uc2dc\uc57d bromocresol green\uc744 \uc774\uc6a9\ud574 \uc885\ub9d0\uc810\uae4c\uc9c0 HCl \ud45c\uc900\uc6a9\uc561\uc73c\ub85c \uc801\uc815\ud574 \ucd1d \uc54c\uce7c\ub9ac\ub3c4\ub97c \uce21\uc815\ud55c\ub2e4. \ub450 \ubc88\uc9f8 \uc801\uc815\uc5d0\uc11c\ub294 \ubbf8\uc9c0\uc2dc\ub8cc\ub97c \uc77c\uc815 \uacfc\ub7c9\uc758 NaOH \ud45c\uc900\uc6a9\uc561\uc73c\ub85c \ucc98\ub9ac\ud558\uc5ec HCO3-\ub97c CO32-\ub85c \ub9cc\ub4e0 \ub4a4, BaCl2\ub97c \uc774\uc6a9\ud558\uc5ec \ubaa8\ub4e0 carbonate\ub97c \uce68\uc804\uc2dc\ud0a8\ub2e4. \uc774\ud6c4 \ub0a8\uc544\uc788\ub294 NaOH\ub97c HCl \ud45c\uc900\uc6a9\uc561\uc73c\ub85c \uc5ed\uc801\uc815\ud558\uc5ec \ub0a8\uc544\uc788\ub294 HCO3-\uc758 \uc591\uc744 \uce21\uc815\ud55c\ub2e4. <\/p>\n

i. Reagents
\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.)
\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.)
\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.)
\n\u2463 NaHCO3 (84.01 g\/mol, Sodium bicarbonate, \uc774\ud0c4\uc0b0 \uc18c\ub4d0, d=2.2 g\/cm\u00b3, bp=\uc790\ub8cc \uc5c6\uc74c, mp=\uc790\ub8cc \uc5c6\uc74c, \uc5f4, \uc2a4\ud30c\ud06c, \ud654\uc5fc \ub4f1 \uc810\ud654\uc6d0\uc744 \uc8fc\uc758\ud558\uace0, \uac00\uc5f0\uc131 \ubb3c\uc9c8, \uc790\uadf9\uc131, \ub3c5\uc131 \uac00\uc2a4\uc640 \uc11e\uc774\uc9c0 \uc54a\ub3c4\ub85d \uc8fc\uc758\ud55c\ub2e4.)<\/p>\n

\ucd9c\ucc98 : \ud574\ud53c\ucea0\ud37c\uc2a4<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

\ubaa9\ucc28 1. Principle & object 2. Reagents 3. Apparatus & Instruments 4. Procedure (\uc7a5\uce58\ub3c4, \uae30\uae30 \uc0ac\uc6a9\ubc95 \ud3ec\ud568) 5. Result (\ubc18\uc751\uc2dd\uacfc \uacc4\uc0b0\uc2dd, \uc608\uc0c1\ub2f9\ub7c9\uc810 \ud3ec\ud568) 6. Homework (\uace0\ucc30) \ubcf8\ubb38\ub0b4\uc6a9 4-2. Object \uc5fc\uae30 \ud63c\ud569\ubb3c\uc744 \uc815\ub7c9\ud560 \ub54c\uc5d0\ub294 \ub3d9\uc77c\ud55c \uc591\uc758 \uc2dc\ub8cc\ub97c 2\uac1c \ub9cc\ub4e4\uc5b4 \ubcc4\ub3c4\ub85c \uc801\uc815\ud558\ub294 \u2018winkler \ubc29\ubc95\u2019\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub2e4. \uccab \ubc88\uc9f8 \uc801\uc815\uc5d0\uc11c\ub294 \ud63c\ud569\ubb3c\uc744 \uc9c0\uc2dc\uc57d bromocresol green\uc744 \uc774\uc6a9\ud574 \uc885\ub9d0\uc810\uae4c\uc9c0 HCl […]<\/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":[58412,58409,58410,58411,58413],"class_list":["post-47989","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-bromocresol-green","tag-winkler","tag-winkler-","tag-58413"],"_links":{"self":[{"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/posts\/47989","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=47989"}],"version-history":[{"count":0,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/posts\/47989\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/media?parent=47989"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/categories?post=47989"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/tags?post=47989"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}