配c(Na2S2O3)=0.10mol/L的硫代硫酸钠800mL需称取Na2S2O3。5H2O多少 理工学科是什么
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硫代硫酸钠晶体物质的量为：1L×0.10mol/L=0.10mol
硫代硫酸钠晶体物质的质量为：0.10mol×248g/mol=24.80g
就
绛旓細1.閰嶅埗锛氱О鍙26g 纭唬纭吀閽锛圢a2S2O3•5H2O锛夋垨16 g鏃犳按纭唬纭吀閽狅紝鍙0.2 g鏃犳按纰抽吀閽狅紝鍔犲叆閫傞噺鏂扮叜娌歌繃鐨勫喎姘翠娇涔嬫憾瑙ｏ紝骞剁█閲婅嚦1000ml锛屾贩鍖锛屾斁缃竴涓湀鍚庤繃婊ゅ鐢ㄣ2.鏍囧畾锛氬噯纭О鍙0.15g鍦120銆C骞茬嚗鑷虫亽閲忕殑鍩哄噯閲嶉摤閰搁捑锛岀疆浜庣閲忕摱涓紝鍔犲叆50锛塵l姘翠娇涔嬫憾瑙ｃ傚姞鍏2g纰樺寲閽惧強...
绛旓細纰樻恫閰嶅埗鏂规硶纰樻恫閰嶅埗鏂规硶锛氶噺鍙35-40mL閰嶅埗濂界殑纰樻爣鍑嗘淮瀹氭憾娑诧紝缃簬纰橀噺鐡讹紝娣诲姞150mL姘(15-20鈩)銆傜敤纭唬纭吀閽犳爣鍑嗘淮瀹氭憾娑瞇c(Na2S2O3)=0.1mol/L]婊村畾锛岃繎缁堢偣鏃讹紝娣诲姞2mL娣绮夋寚绀哄墏(10g/L)锛岀户缁淮瀹氳嚦婧舵恫钃濊壊娑堝け銆傚悓鏃跺仛绌虹櫧璇曢獙銆傜娑查厤鍒舵柟娉 纰樻恫鏄寚鍚湁纰樺寲閽剧殑婧舵恫锛屾槸涓绉嶉粍鑹茶交寰埡...
绛旓細纭唬纭吀閽犲厠鍒嗗瓙娴撳害c(Na2S2O3)=0.1mol/L銆傝瀹為獙涓娇鐢ㄧ殑纭唬纭吀閽犱负鏍囧噯纭唬纭吀閽犳憾娑插父鐢ㄧ殑纭唬纭吀閽犳爣鍑嗘憾娑茬殑娴撳害锛氾紝c(Na2S2O3)=0.1mol/L(褰撻噺娴撳害涔熸槸0.1N).閰嶅埗鏂规硶锛氱О鍙26g纭唬纭吀閽燦a2S2O3路5H2O鎴16g鏃犳按纭唬纭吀閽犳憾浜1000ml姘翠腑銆
绛旓細1.閰嶅埗锛氱О鍙26g 纭唬纭吀閽锛圢a2S2O3•5H2O锛夋垨16 g鏃犳按纭唬纭吀閽狅紝鍙0.2 g鏃犳按纰抽吀閽狅紝鍔犲叆閫傞噺鏂扮叜娌歌繃鐨勫喎姘翠娇涔嬫憾瑙ｏ紝骞剁█閲婅嚦1000ml锛屾贩鍖锛屾斁缃竴涓湀鍚庤繃婊ゅ鐢ㄣ2.鏍囧畾锛氬噯纭О鍙0.15g鍦120銆C骞茬嚗鑷虫亽閲忕殑鍩哄噯閲嶉摤閰搁捑锛岀疆浜庣閲忕摱涓紝鍔犲叆50锛塵l姘翠娇涔嬫憾瑙ｃ傚姞鍏2g纰樺寲閽惧強...
绛旓細鍥介檯娉曟爣瀹氱～浠ｇ～閰搁挔鏍囧噯婧舵恫鐨勯厤鍒跺拰鏍囧畾锛C锛圢a2S2O3锛=0.1 mol/L 1.閰嶅埗锛氱О鍙26g 纭唬纭吀閽狅紙Na2S2O3•5H2O锛夋垨16 g鏃犳按纭唬纭吀閽狅紝鍙0.2 g鏃犳按纰抽吀閽狅紝鍔犲叆閫傞噺鏂扮叜娌歌繃鐨勫喎姘翠娇涔嬫憾瑙ｏ紝骞剁█閲婅嚦1000ml锛屾贩鍖锛屾斁缃竴涓湀鍚庤繃婊ゅ鐢ㄣ2.鏍囧畾锛氬噯纭О鍙0.15g銆傚共鐕ヨ嚦鎭掗噺鐨...
绛旓細鐢ㄧ～浠ｇ～閰搁挔婧舵恫婊村畾鑷虫憾娑插憟娴呴粍缁胯壊锛屽啀鍔3ml娣绮夋寚绀哄墏銆傜户缁淮瀹氳嚦婧舵恫鐢辫摑鑹叉秷澶辫屾樉浜豢鑹层傚弽搴旀恫鍙婄█閲婄敤姘寸殑娓╁害涓嶅簲瓒呰繃20鈩冦傚悓鏃跺仛绌虹櫧璇曢獙銆傜～浠ｇ～閰搁挔鏍囧噯婧舵恫鐨勬祿搴︽寜涓嬪紡璁＄畻锛C锛圢a2S2O3锛= M/[锛圴1- V0锛壝0.04903]寮忎腑锛欳锛圢a2S2O3锛夆斺旂～浠ｇ～閰搁挔鏍囧噯婧舵恫鐨勭墿璐ㄧ殑娴撳害锛...
绛旓細鐢ㄧ⒈寮忔淮瀹氱銆傚洜涓虹～浠ｇ～閰搁挔鐨勭粍鎴愪腑鏄剧ずNa鎴愬己纰辨э紝鑰岀～浠ｇ～閰告牴鎴愬急閰告э紝鎵浠ョ～浠ｇ～閰搁挔鏄⒈寮忕洂銆傚啀鑰呴厤鍒剁～浠ｇ～閰搁挔鏃堕渶鍔犲叆灏戦噺鐨勭⒊閰搁挔浣挎憾娑茬殑pH鍊间繚鎸佸湪9-10宸﹀彸锛屼互闃茬粏鑿屾粙鐢熷拰纭唬纭吀閽犲彉璐ㄨ屾瀽鍑虹～锛屽洜姝ゅ叾婧舵恫鍛堝急纰辨с傜～浠ｇ～閰搁挔瑙佸厜鏄撳垎瑙ｏ紝鍛堝急纰辨э紝鏁呮渶濂界敤妫曡壊纰卞紡婊村畾绠°
绛旓細3銆佺敤纭唬纭吀閽犳爣鍑嗘淮瀹氭憾娑瞇c(Na2S2O3)=0.1mol/L]婊村畾锛岃繎缁堢偣鏃讹紝鍔2mL娣绮夋寚绀哄墏锛10g/L锛夛紝缁х画婊村畾鑷虫憾娑茶摑鑹叉秷澶 4銆佸悓鏃跺仛绌虹櫧璇曢獙鍙250mL姘达紙15鈥20鈩冿級锛屽姞0.05mL鈥斺0.20mL閰嶅埗濂界殑纰樻爣鍑嗘憾娑插拰2mL娣绮夋寚绀哄墏锛10g/L锛夛紝鐢ㄧ～浠ｇ～閰搁挔鏍囧噯婊村畾婧舵恫[c(Na2S2O3)=0.1mol/L]婊村畾鑷...
绛旓細鏍囧畾锛氱簿纭惛鍙栭厤濂界殑1N Na2S2O310ml浜100ml瀹归噺鐡朵腑锛屽姞姘寸█閲婂埌鍒诲害鎽囧寑锛屽掑叆25ml婊村畾绠′腑锛屽彟鍙5ml 0.5N纰橀吀閽句簬纰橀噺鐡朵腑锛屽姞姘寸害30ml锛屽姞鍏30%KI 7ml锛6N HCl 10ml锛岀◢鎽囷紝鏀剧疆鏆楀10鍒嗛挓锛岀敤涓婅堪Na2S2O3婊村畾锛屼互娣绮変负鎸囩ず鍓傘傝绠楋細CNa2S2O3 = 0.5脳5脳10 ml锛圢a2S2O3锛0.05N Na2S2O...
绛旓細纰樻爣鍑嗘憾娑茬殑閰嶅埗涓庢爣瀹氬涓嬶細涓銆侀厤鍒讹細纰樻爣鍑嗘憾娑睠銆1銆=0.1mol/L 绉板彇13g纰樺強35g纰樺寲閽撅紝婧朵簬灏戦噺姘翠腑锛岀劧鍚庣Щ鍏1L妫曡壊璇曞墏鐡朵腑锛屽姞姘寸█閲婅嚦 1L锛屾憞鍖銆備簩銆佹爣瀹氾細1銆佸師鐞嗭細2Na2S2O3+I鈫2NaI+NazS4O 2銆佹爣瀹氾細鍑嗙‘閲忓彇20ml~25ml纰樻恫锛屽姞50ml姘淬30ml0.1C銆怘CI銆戠洂閰革紝鎽囧寑锛岀敤0.1C銆...
