实验室需要0.1摩尔每升氢氧化钠450ml,需要0.5摩尔每升硫酸溶液500ml,计算氢氧化钠的 实验室需要0.1mol/L NaOH溶液450mL和0.5m...
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\uff081\uff09\u914d\u5236\u6b65\u9aa4\u6709\u8ba1\u7b97\u3001\u79f0\u91cf\u3001\u6eb6\u89e3\u3001\u51b7\u5374\u3001\u79fb\u6db2\u3001\u6d17\u6da4\u3001\u5b9a\u5bb9\u3001\u6447\u5300\u7b49\u64cd\u4f5c\uff0c\u4e00\u822c\u7528\u6258\u76d8\u5929\u5e73\u79f0\u91cf\uff0c\u7528\u836f\u5319\u53d6\u7528\u836f\u54c1\uff0c\u5728\u70e7\u676f\u4e2d\u6eb6\u89e3\uff08\u53ef\u7528\u91cf\u7b52\u91cf\u53d6\u6c34\uff09\uff0c\u51b7\u5374\u540e\u8f6c\u79fb\u5230100mL\u5bb9\u91cf\u74f6\u4e2d\uff0c\u5e76\u7528\u73bb\u7483\u68d2\u5f15\u6d41\uff0c\u5f53\u52a0\u6c34\u81f3\u6db2\u9762\u8ddd\u79bb\u523b\u5ea6\u7ebf1\uff5e2cm\u65f6\uff0c\u6539\u7528\u80f6\u5934\u6ef4\u7ba1\u6ef4\u52a0\uff0c\u6240\u4ee5\u9700\u8981\u7684\u4eea\u5668\u4e3a\uff1a\u6258\u76d8\u5929\u5e73\u3001\u836f\u5319\u3001\u70e7\u676f\u3001\u7b52\u91cf\u3001\u73bb\u7483\u68d2\u3001\u5bb9\u91cf\u74f6\u3001\u80f6\u5934\u6ef4\u7ba1\uff0c\u6240\u4ee5\u4e0d\u9700\u8981\u7684\u4eea\u5668\u662fAC\uff0c\u8fd8\u9700\u8981\u7684\u4eea\u5668\u662f\u70e7\u676f\u548c\u73bb\u7483\u68d2\uff1b\u6545\u7b54\u6848\u4e3a\uff1aA C\uff1b\u70e7\u676f\u548c\u73bb\u7483\u68d2\uff1b\uff082\uff09\u5bb9\u91cf\u74f6\u4f5c\u4e3a\u7cbe\u5bc6\u4eea\u5668\uff0c\u662f\u7528\u6765\u914d\u7f6e\u4e00\u5b9a\u7269\u8d28\u7684\u91cf\u6d53\u5ea6\u7684\u6eb6\u6db2\u7684\u4e3b\u8981\u4eea\u5668\uff0c\u4e0d\u53ef\u7528\u4e8e\u50a8\u5b58\u548c\u6eb6\u89e3\u3001\u7a00\u91ca\u7269\u8d28\uff0c\u4e5f\u4e0d\u80fd\u6d4b\u91cf\u9664\u5176\u89c4\u683c\u4ee5\u5916\u5bb9\u79ef\u7684\u6db2\u4f53\u4f53\u79ef\uff0c\u6240\u4ee5\u5bb9\u91cf\u74f6\u4e0d\u5177\u6709\u7684\u529f\u80fdAD\uff1b\u6545\u7b54\u6848\u4e3a\uff1aAD\uff1b\uff083\uff09\u9700\u8981\u6c22\u6c27\u5316\u94a0\u7684\u7269\u8d28\u7684\u91cf=0.1mol/L\u00d70.5L=0\uff0c05mol\uff0c\u5176\u8d28\u91cf=0.05mol\u00d740g/mol=2.0g\uff1b\u6545\u7b54\u6848\u4e3a\uff1a0.2g\uff1b\uff084\uff09\u8d28\u91cf\u5206\u6570\u4e3a98%\u3001\u5bc6\u5ea6\u4e3a1.84g/cm3\u7684\u6d53\u786b\u9178\u7684\u7269\u8d28\u7684\u91cf\u6d53\u5ea6C=1000\u00d71.84g/ml\u00d798%98g/mol=18.4mol/L\uff0c\u7a00\u91ca\u524d\u540e\u6eb6\u6db2\u6240\u542b\u6eb6\u8d28\u7684\u8d28\u91cf\u4e0d\u53d8\uff0c\u8bbe\u9700\u8981\u6d53\u786b\u9178\u7684\u4f53\u79efV\uff0c\u5219\uff1a18.4mol/L\u00d7V=0.5mol/L\u00d70.5L\u224813.6ml\uff1bA\uff0e\u5bb9\u91cf\u74f6\u7528\u84b8\u998f\u6c34\u6d17\u6da4\u540e\u6b8b\u7559\u6709\u5c11\u91cf\u7684\u6c34\uff0c\u591a\u6eb6\u8d28\u7684\u7269\u8d28\u7684\u91cf\u548c\u6eb6\u6db2\u7684\u4f53\u79ef\u4e0d\u4f1a\u4ea7\u751f\u5f71\u54cd\uff0c\u6eb6\u6db2\u6d53\u5ea6\u4e0d\u53d8\uff0c\u6545A\u4e0d\u9009\uff1bB\uff0e\u6240\u7528\u8fc7\u7684\u70e7\u676f\u3001\u73bb\u7483\u68d2\u672a\u6d17\u6da4\uff0c\u6eb6\u8d28\u7684\u7269\u8d28\u7684\u91cf\u504f\u5c0f\uff0c\u6eb6\u6db2\u7684\u6d53\u5ea6\u504f\u5c0f\uff0c\u6545B\u9009\uff1bC\uff0e\u5b9a\u5bb9\u65f6\u4ef0\u89c6\u5bb9\u91cf\u74f6\u523b\u5ea6\u7ebf\uff0c\u6eb6\u6db2\u7684\u4f53\u79ef\u504f\u5927\uff0c\u6eb6\u6db2\u7684\u6d53\u5ea6\u504f\u5c0f\uff0c\u6545C\u9009\uff1bD\uff0e\u6eb6\u89e3\u540e\u672a\u7ecf\u51b7\u5374\u5c31\u8f6c\u79fb\u5230\u5bb9\u91cf\u74f6\uff0c\u51b7\u5374\u540e\uff0c\u6eb6\u6db2\u7684\u4f53\u79ef\u504f\u5c0f\uff0c\u6eb6\u6db2\u7684\u6d53\u5ea6\u504f\u5927\uff0c\u6545D\u4e0d\u9009\uff1bE\uff0e\u7528\u91cf\u7b52\u91cf\u53d6\u6d53\u786b\u9178\uff0c\u8bfb\u6570\u65f6\u4ef0\u89c6\uff0c\u91cf\u53d6\u7684\u6d53\u786b\u9178\u504f\u591a\uff0c\u6eb6\u8d28\u7684\u7269\u8d28\u7684\u91cf\u504f\u5927\uff0c\u6eb6\u6db2\u7684\u6d53\u5ea6\u504f\u5927\uff0c\u6545E\u4e0d\u9009\uff1b\u6545\u7b54\u6848\u4e3a\uff1a13.6\uff1bBC\uff0e
0.1摩尔每升氢氧化钠450ml,40*0.1*450/1000=1.8克0.5摩尔每升硫酸溶液500ml,98*0.5*500/1000=24.5克
0.25mol
绛旓細0.1mol/L*0.05L = 1mol/L*V(HCl)
绛旓細0.1鎽╁皵姣忓崌姘㈡哀鍖閽450ml,40*0.1*450/1000=1.8鍏 0.5鎽╁皵姣忓崌纭吀婧舵恫500ml,98*0.5*500/1000=24.5鍏
绛旓細0.1鎽╁皵姣忓崌NaOH婧舵恫50姣崌锛堝嵆0.05鍗囷級鎵濂絅aOH鐗╄川鐨勯噺涓 0.1脳0.05锛0.005mol 璁句腑鍜屾墍闇HCl鐗╄川鐨勯噺涓簒 mol銆侼aOH 锛 HCl锛 NaCl锛 H2O 1 : 1 0.005mol :x mol 璁＄畻寰梮锛0.005mol 0.005鎽╁皵HCl鎵闇1鎽╁皵姣忓崌鐩愰吀鐨勪綋绉负 0.005/1锛0.005鍗 鍗冲畬鍏ㄤ腑鍜50姣崌宸查厤缃...
绛旓細1.绉伴噺锛氱敤鎵樼洏澶╁钩鍑嗙‘绉伴噺2g姘㈡哀鍖閽犲浐浣擄紙鏀惧湪鐑ф澂閲岀О閲忥級2.婧惰В锛氬皢宸茬粡绉板ソ鐨勬阿姘у寲閽犲浐浣撴斁鍏ョ儳鏉腑,鐢ㄩ傞噺钂搁姘村皢鍏惰兘瀹屽叏婧惰В锛屽苟鍐峰嵈鑷冲娓┿3.杞Щ锛氬皢鍐峰嵈鍚庣殑姘㈡哀鍖栭挔婧舵恫鍏ㄩ儴杞Щ鍒500ml瀹归噺鐡朵腑銆4.娲楁钉:鐢ㄨ捀棣忔按娲楁钉鐑ф澂鍜岀幓鐠冩2-3娆,灏嗘礂娑よ繃鐨勬憾娑插叏閮ㄨ浆绉昏嚦500ml瀹归噺鐡朵腑锛屽苟...
绛旓細1銆佺‘瀹氶厤鍒0.1 mol/L ,1000姣崌鐨姘㈡哀鍖閽犳爣鍑嗘憾娑诧紱2銆佽绠楁阿姘у寲閽犵殑绉伴噺璐ㄩ噺m= 1.000Lx0.1mol/L x 40 g/mol= 4.00g 3銆佸垎鏋愬ぉ骞冲湪灏忓鏂欐澂閲岀О閲 4.00g 鍒嗘瀽绾殑姘㈡哀鍖栭挔锛4銆佺敤钂搁姘存憾瑙ｅ悗锛岃浆绉昏嚦1000ml鐨勫鏂欒瘯鍓傜摱閲岋紝娣峰寑銆傝创鏍囩锛堝緟鏍囧畾锛夈備簩銆佹爣瀹氾紙缁欏嚭鍑嗙‘娴撳害锛夋阿...
绛旓細涓銆侀厤鍒讹細灏姘㈡哀鍖閽犻厤鎴愰ケ鍜屾憾娑,娉ㄥ叆濉戞枡妗朵腑瀵嗛棴鏀剧疆鑷虫憾娑叉竻浜,浣跨敤 鍓嶄互濉戞枡绠¤櫣鍚镐笂灞傛竻娑.娴 搴 姘㈡哀鍖栭挔楗卞拰婧舵恫 娉ㄥ叆涓嶅惈CO2鐨勬按 0.1mol/L閲忓彇5ml1000涓憞鍖 0.2mol/L閲忓彇10ml1000涓憞鍖 0.5mol/L閲忓彇26ml1000涓憞鍖 1.0mol/L閲忓彇52ml1000涓憞鍖 浜屻佹爣瀹氾細1銆佸師鐞嗭細 KHC8H...
绛旓細0.1鎽╁皵姣忓崌姘㈡哀鍖閽犳憾娑茬殑閰嶅埗鏄細1銆佺О鍙4鍏嬫阿姘у寲閽犲浐浣擄紝鐢ㄥ皯閲忚捀棣忔按婧朵簬灏忕儳鏉腑銆2銆佸皢鐑ф澂涓殑姘㈡哀鍖栭挔婧舵恫杞Щ鍒1000mL鐨勫閲忕摱涓3銆佺敤钂搁姘存鼎娲楃儳鏉拰鐜荤拑妫2-3娆★紝娑︽礂娑蹭篃杞Щ鍒板閲忕摱涓4銆佺敤娲楃摱缁欏閲忕摱鍔犺捀棣忔按锛岀洿鍒扮鍒诲害绾2-3鍘樼背銆5銆佺敤婊寸婊村姞钂搁姘达紝鐩村埌娑查潰...
绛旓細0.500L * 0.1mol/L * 40g/mol = 2g
绛旓細璁＄畻杩囩▼:V(H2O)=500ml=0.5L n(NaOH)= 0.1mol/L脳0.5L=0.05mol ,m(NaOH)=nM=0.05mol脳40g/mol=2g 閰嶇疆姝ラ:1.鎵樼洏澶╁钩涓婂厛绉板彇娲佸噣骞茬嚗鐑ф澂璐ㄩ噺绉板彇2gNaOH 2.鍚戠儳鏉姞閫傞噺钂搁姘寸敤鐜荤拑妫掓悈鎷屼娇鍏舵憾瑙ｅ苟浣垮叾鎭㈠瀹ゆ俯 3.婧舵恫娌跨幓鐠冩娉ㄥ叆500 mL 瀹归噺鐡 4.鐢ㄩ傞噺钂搁姘存礂娑ょ儳鏉2鑷3...
绛旓細涓涓姘㈡哀鍖閽犳秷鑰椾竴涓偦鑻簩鐢查吀姘㈤捑 NaOH鐗╄川鐨勯噺涓 0.1*0.02 鍒0.1*0.03 鍗抽偦鑻簩鐢查吀姘㈤捑 鐗╄川鐨勯噺涓0.1*0.02 鍒0.1*0.03 鍙堝叾鎽╁皵璐ㄩ噺涓 204.22 g/mol 鍒欒川閲忎负 0.41 g 鍒0.61 g涔嬮棿
