配制0.02mol/l的高锰酸钾溶液应称取多少g的爱 0.02mol/L的高锰酸钾标准溶液配制1L,怎样配制?
\u914d\u52360.02mol\u00b7l-1kmno4\u6eb6\u6db2500ml\u4e3a\u4ec0\u4e48\u79f0\u53d61.6g\u56fa\u4f53\u9ad8\u9530\u9178\u94be\u8ba1\u7b97\u9ad8\u9530\u9178\u94be\u7684\u8d28\u91cf\u662f1.58\u514b\u3002\u56e0\u4e3a\u9ad8\u9530\u9178\u94be\u6eb6\u6db2\u4e0d\u4f5c\u4e3a\u57fa\u51c6\u6eb6\u6db2\uff0c\u6d53\u5ea6\u7684\u7cbe\u5ea6\u4e0d\u8981\u6c42\u592a\u9ad8\uff0c\u6240\u4ee5\u53ea\u8981\u7528\u4e00\u822c\u5929\u5e73\u79f0\u91cf\u5373\u53ef\u3002\u6240\u4ee5\u7cbe\u786e\u5230\u4e00\u4f4d\u5c0f\u6570\u5373\u53ef\uff0c\u53731.58\u22481.6.
\u3000\u30000.02mol/L\u7684\u9ad8\u9530\u9178\u94be\u6807\u51c6\u6eb6\u6db21L\uff0c\u5219\u9ad8\u9530\u9178\u94be\u7684\u8d28\u91cf\uff1d0.02mol/L*1L*158\uff1d3.16g\u3002\u628a3.16\u514b\u9ad8\u9530\u9178\u94be\u6eb6\u6db2\u57281L\u6c34\u4e2d\u5c31\u914d\u5236\u62100.02mol/L\u7684\u9ad8\u9530\u9178\u94be\u6807\u51c6\u6eb6\u6db21L\u3002
\u3000\u3000\u9ad8\u9530\u9178\u94be\uff08KMnO4\uff0cMr=158.04\uff09\uff0c\u65e0\u673a\u5316\u5408\u7269\uff0c\u7d2b\u9ed1\u8272\u9488\u72b6\u7ed3\u6676\u3002\u6eb6\u89e3\u5ea6\uff1a6.38 g/100 mL\uff0820\u2103\uff09\u3002\u6b63\u4ea4\u6676\u7cfb\u30021659\u5e74\u88ab\u897f\u65b9\u4eba\u53d1\u73b0\u3002\u4e2d\u6587\u4fd7\u79f0\uff1a \u7070\u9530\u6c27\u3002
\u3000\u3000\u5728\u5316\u5b66\u54c1\u751f\u4ea7\u4e2d\uff0c\u5e7f\u6cdb\u7528\u4f5c\u4e3a\u6c27\u5316\u5242\uff0c\u5982\u7528\u4f5c\u5236\u7cd6\u7cbe\uff0c\u7ef4\u751f\u7d20C\u3001\u5f02\u70df\u80bc\u53ca\u5b89\u606f\u9999\u9178\u7684\u6c27\u5316\u5242\uff1b\u5728\u533b\u836f\u4e0a\u7528\u4f5c\u9632\u8150\u5242\u3001\u6d88\u6bd2\u5242\u3001\u9664\u81ed\u5242\u53ca\u89e3\u6bd2\u5242\uff1b\u5728\u6c34\u8d28\u51c0\u5316\u53ca\u5e9f\u6c34\u5904\u7406\u4e2d\uff0c\u4f5c\u6c34\u5904\u7406\u5242\uff0c\u4ee5\u6c27\u5316\u786b\u5316\u6c22\u3001\u915a\u3001\u94c1\u3001\u9530\u548c\u6709\u673a\u3001\u65e0\u673a\u7b49\u591a\u79cd\u6c61\u67d3\u7269\uff0c\u63a7\u5236\u81ed\u5473\u548c\u8131\u8272\uff1b\u5728\u6c14\u4f53\u51c0\u5316\u4e2d\uff0c\u53ef\u9664\u53bb\u75d5\u91cf\u786b\u3001\u7837\u3001\u78f7\u3001\u7845\u70f7\u3001\u787c\u70f7\u53ca\u786b\u5316\u7269\uff1b\u5728\u91c7\u77ff\u51b6\u91d1\u65b9\u9762\uff0c\u7528\u4e8e\u4ece\u94dc\u4e2d\u5206\u79bb\u94bc\uff0c\u4ece\u950c\u548c\u9549\u4e2d\u9664\u6742\uff0c\u4ee5\u53ca\u5316\u5408\u7269\u6d6e\u9009\u7684\u6c27\u5316\u5242\uff1b\u8fd8\u7528\u4e8e\u4f5c\u7279\u6b8a\u7ec7\u7269\u3001\u8721\u3001\u6cb9\u8102\u53ca\u6811\u8102\u7684\u6f02\u767d\u5242\uff0c\u9632\u6bd2\u9762\u5177\u7684\u5438\u9644\u5242\uff0c\u6728\u6750\u53ca\u94dc\u7684\u7740\u8272\u5242\u7b49\u3002
\u3000\u3000\u7531\u4e8e\u5b9e\u9a8c\u5ba4\u7684\u5927\u91cf\u9700\u6c42\uff0c\u9ad8\u9530\u9178\u94be\u88ab\u5927\u89c4\u6a21\u5730\u5236\u9020\u3002\u4e00\u822c\u5e38\u89c1\u7684\u5236\u5907\u65b9\u6cd5\u6709\u4ee5\u4e0b\u4e24\u79cd\uff1a\u77ff\u77f3\u4e2d\u53d6\u5f97\u7684\u4e8c\u6c27\u5316\u9530\u548c\u6c22\u6c27\u5316\u94be\u5728\u7a7a\u6c14\u4e2d\u6216\u6df7\u5408\u785d\u9178\u94be\uff08\u63d0\u4f9b\u6c27\u6c14\uff09\u52a0\u70ed\uff0c\u4ea7\u751f\u9530\u9178\u94be\uff0c\u518d\u4e8e\u78b1\u6027\u6eb6\u6db2\u4e2d\u4e0e\u6c27\u5316\u5242\u8fdb\u884c\u7535\u89e3\u5316\u5f97\u5230\u9ad8\u9530\u9178\u94be\u3002
\u3000\u3000\u6216\u8005\u4e5f\u53ef\u4ee5\u901a\u8fc7Mn\u79bb\u5b50\u548c\u4e8c\u6c27\u5316\u94c5\uff08PbO2\uff09\u6216\u94cb\u9178\u94a0\uff08NaBiO3\uff09\u7b49\u5f3a\u6c27\u5316\u5242\u7684\u53cd\u5e94\u4ea7\u751f\u3002\u6b64\u53cd\u5e94\u4e5f\u7528\u4e8e\u68c0\u9a8cMn\u79bb\u5b50\u7684\u5b58\u5728\uff0c\u56e0\u4e3a\u9ad8\u9530\u9178\u94be\u7684\u989c\u8272\u660e\u663e\u3002
\u3000\u3000\u5de5\u4e1a\u4e0a\u5236\u5907KMnO4\u8f83\u4e3a\u7b80\u4fbf\u7684\u65b9\u6cd5\u662f\u7528\u94c2\u4f5c\u9634\u6781\u7535\u89e3\u6c27\u5316K2MnO4\uff1a\u9996\u5148\u7528KOH\u5c06\u542b60%MnO2\u7684\u77ff\u77f3\u8f6c\u5316\u4e3aK2MnO4\uff0c\u518d\u7535\u89e3\u6c27\u5316\u751f\u6210KMnO4\u3002
\u3000\u3000\u6c22\u6c27\u5316\u94be\u6c34\u6eb6\u6db2\u52a0\u4e8c\u6c27\u5316\u9530\u548c\u6c2f\u9178\u94be\u5171\u540c\u716e\u6cb8\u3001\u84b8\u53d1\uff0c\u4f59\u6e23\u7194\u4e3a\u6d46\u72b6\u540e\u7528\u6c34\u6d78\u6e0d\uff0c\u518d\u901a\u4ee5\u6c2f\u6c14\u3001\u4e8c\u6c27\u5316\u78b3\u53ca\u81ed\u6c27\uff0c\u6216\u7528\u7535\u89e3\u9530\u9178\u76d0\u7684\u78b1\u6027\u6eb6\u6db2\u4e5f\u53ef\u5236\u5f97\u3002
\u3000\u3000KMnO4\u4e5f\u53ef\u7528PbO2\u6216NaBiO3\u5728\u78b1\u6027\u6761\u4ef6\u4e0b\u6c27\u5316\u9530\uff08\u2161\uff09\u76d0\u6765\u5236\u53d6\uff0c\u4f4e\u6d53\u5ea6\u78b1\u6709\u5229\u4e8e\u9530\uff08\u2161\uff09\u7684\u5f62\u6210\u3002
\u3000\u30001.\u7119\u70e7\u6cd5-\u7535\u89e3\u6cd5\uff1a\u5c06\u8f6f\u9530\u77ff\u4e0e\u6c22\u6c27\u5316\u94be\u6df7\u5408\u6210\u6d46\u6599\uff0c\u7528\u538b\u7f29\u7a7a\u6c14\u5c06\u7269\u6599\u55b7\u5165\u7119\u70e7\u8f6c\u7089\uff0c\u5728250~300\u2103\u4e0b\u6c27\u5316\u6210\u9530\u9178\u94be\u3002\u7119\u70e7\u7269\u7528\u7a00\u78b1\u6db2\u6216\u6d17\u6da4\u6c34\u6d78\u53d6\uff0c\u7ecf\u8fc7\u6ee4\u3001\u9664\u6742\u8d28\u5f97\u9530\u9178\u94be\u3002
\u3000\u3000\u7531\u4e8e\u56fa\u76f8\u6cd5\u4f20\u8d28\u3001\u4f20\u70ed\u56f0\u96be\uff0c\u64cd\u4f5c\u73af\u5883\u5dee\uff0c\u8bbe\u5907\u5e9e\u5927\uff0c\u80fd\u8017\u9ad8\uff0c\u5c06\u9010\u6e10\u88ab\u6dd8\u6c70\u3002\u9530\u9178\u94be\u7535\u89e3\u6c27\u5316\u5236\u53d6\u9ad8\u9530\u9178\u94be\u7684\u8fc7\u7a0b\u4e0e\u6db2\u76f8\u6cd5\u76f8\u540c\u3002\u4f5c\u4e3a\u98df\u54c1\u6dfb\u52a0\u5242\u7684\u9ad8\u9530\u9178\u94be\uff0c\u8fd8\u9700\u7ecf\u91cd\u7ed3\u6676\u4ee5\u9664\u53bb\u91cd\u91d1\u5c5e\u548c\u7837\u7b49\u3002
\u3000\u30002.\u6db2\u76f8\u6c27\u5316\u6cd5-\u7535\u89e3\u6cd5\uff1a\u5c06\u8f6f\u9530\u77ff\u7c89\uff080.074mm\uff09\u4e0e200\u2103\u4ee5\u4e0a80%\u7684\u6c22\u6c27\u5316\u94be\u6eb6\u6db2\u6df7\u5408\uff0c\u5e76\u5728300\u2103\u4e0b\uff0c\u5728\u7b2c\u4e00\u53cd\u5e94\u5668\u4e2d\u901a\u7a7a\u6c14\uff0c\u4f7f\u4e8c\u6c27\u5316\u9530\u6c27\u5316\u6210\u4e9a\u9530\u9178\u94be\uff0c\u7136\u540e\u6ea2\u6d41\u81f3\u7b2c\u4e8c\u53cd\u5e94\u5668\u8fdb\u4e00\u6b65\u6c27\u5316\u6210\u9530\u9178\u94be\u3002\u53cd\u5e94\u6db2\u7ecf\u70ed\u8fc7\u6ee4\uff0c\u7528100\u2103\u300160%\u7684KOH\u6eb6\u6db2\u6d17\u6da4\uff0c\u6ee4\u997c\u6eb6\u4e8e\u7a00\u78b1\u6db2\u6216\u6d17\u6da4\u6c34\uff0c\u7ecf\u6c89\u6dc0\u3001\u5206\u79bb\u548c\u9664\u6742\u540e\u5f97\u9530\u9178\u94be\u3002
\u3000\u3000\u9530\u9178\u94be\u7528\u7cfb\u7edf\u5185\u7684\u7535\u89e3\u7ec8\u6db2\u8c03\u5236\u6210\u7535\u89e3\u59cb\u6db2\uff0c\u7ec4\u6210\u5982\u4e0b\uff1a\u9530\u9178\u94be\u2265180g/L\uff1b\u78b3\u9178\u94be<60/L\uff1b\u6c22\u6c27\u5316\u94be50~60g/L\u3002\u7535\u89e3\u59cb\u6db2\u572860\u2103\u4e0b\u8fdb\u5165\u94a2\u677f\u5236\u6210\u7684\u7535\u89e3\u69fd\uff0c\u9633\u6781\u7528\u954d\u677f\uff08\u6216\u9540\u954d\u94a2\u677f\uff09\uff0c\u9634\u6781\u7528\u94c1\u6761\u3002\u9633\u6781\u4e0e\u9634\u6781\u7684\u9762\u79ef\u6bd4\u4e3a1:\uff088\uff5e10\uff09\uff0c\u7535\u6d41\u5bb9\u91cf\u4e3a1000A/m3\uff0c\u9633\u6781\u7535\u6d41\u5bc6\u5ea6\u4e3a60\uff5e100A/m2\uff0c\u69fd\u7535\u538b2.25\uff5e2.5V\uff0c\u677f\u8ddd50\uff5e100mm\u3002\u9530\u9178\u94be\u5728\u9633\u6781\u88ab\u6c27\u5316\u6210\u9ad8\u9530\u9178\u94be\uff0c\u5927\u90e8\u5206\u7ed3\u6676\u6790\u51fa\u3002\u51b7\u5374\u540e\u7ecf\u79bb\u5fc3\u5206\u79bb\u5f97\u542b\u91cf\u4e3a94%\u5de6\u53f3\u7684\u9ad8\u9530\u9178\u94be\u7c97\u54c1\uff0c\u7ecf\u91cd\u7ed3\u6676\u540e\u5f97\u542b\u91cf\u4e3a99.3%\u7684\u9ad8\u9530\u9178\u94be\u7ed3\u6676\u3002
\u3000\u3000\u7535\u89e3\u7ec8\u6db2\u5448\u7d2b\u7ea2\u8272\uff0c\u542b\u9530\u9178300~400g/L\uff0c\u6c22\u6c27\u5316\u94be110~120g/L\uff0c\u4ee5\u53ca\u7535\u89e3\u4e2d\u4f34\u751f\u7684\u78b3\u9178\u94be\uff0c\u7ecf\u84b8\u53d1\u5206\u522b\u56de\u6536\u5229\u7528\uff0c\u90e8\u5206\u7535\u89e3\u7ec8\u6db2\u8fd4\u56de\u7cfb\u7edf\u8c03\u5236\u7535\u89e3\u59cb\u6db2\u3002
0.02mol/l*1L=0.02mol
0.02mol*158.04g/mol=3.1608g
所以配制0.02mol/l约需3.2g高锰酸甲，稀释至1L就是0.02mol/l高锰酸钾溶液
绛旓細鍋囪閰嶅埗500姣崌 杩戜技涓1.32鍏 绉板彇1.32鍏嬬７閰告阿浜岄摰鍥轰綋锛屾憾浜500姣崌钂搁姘翠腑锛屾悈鎷屽潎鍖鍗冲彲
绛旓細閰嶅埗 0.02mol/L锛氱О鍙栧垎鏋愮函纭唬纭吀閽5g锛屾憾浜庢按涓紝鍔犲叆纰抽吀閽0.1g锛岀█閲婅嚦1L銆傚湪pH9锛10闂寸～浠ｇ～閰哥洂婧舵恫鏈涓虹ǔ瀹,濡傚湪Na2S2O3婧舵恫涓姞鍏ュ皯閲廚a2CO3鏃,寰堟湁濂藉銆
绛旓細鍦ㄥ娓20卤2鈩冩磥鍑瀹為獙瀹や腑閲囩敤閲嶉噺-瀹归噺娉閰嶅埗鑰屾垚銆0.02mol鍗佷簩鐑峰熀纭吀閽犳槸涓绉嶅父鐢ㄧ殑绂诲瓙鍨嬪幓鍨㈠墏锛屽彲浣跨粏鑳炶啘宕╄В锛屼笌鑶滆泲鐧界枏姘撮儴鍒嗙粨鍚堝苟浣垮叾涓庤啘鍒嗙銆傞珮娴撳害鐨凷DS杩樺彲鐮村潖铔嬬櫧璐ㄤ腑鐨勭瀛愰敭鍜屾阿閿瓑闈炲叡浠烽敭锛岀敋鑷虫敼鍙樿泲鐧借川鐨勬瀯璞°傝繖涓鐗规у父鐢ㄤ簬铔嬬櫧璐ㄦ垚鍒嗗垎鏋愮殑SDS鍑濊兌鐢垫吵銆
绛旓細鍋囪瑕閰嶅埗500mL 绉伴噺璐ㄩ噺=0.02脳0.5脳136.09=1.36鍏 鍔犲叆500姣崌钂搁姘达紝鎼呮媽婧惰В鍗冲彲
绛旓細鍋囧畾婧舵恫涓1L 0.02mol/l*1L=0.02mol 0.02mol*158.04g/mol=3.1608g 鎵浠閰嶅埗0.02mol/l绾﹂渶3.2g楂橀敯閰哥敳锛岀█閲婅嚦1L灏辨槸0.02mol/l楂橀敯閰搁捑婧舵恫
绛旓細0.02mol/L銆0.07mol/L銆0.1mol/L鐩愰吀鏍囧噯婧舵恫鐨閰嶅埗涓庢爣瀹氾紙娴婥P锛 涓銆侀厤鍒讹細0.02mol/l鐩愰吀婧舵恫锛氬彇1.67ml娴撶洂閰革紝鐢ㄨ捀棣忔按瀹氬鑷1000 ml銆傦紙鍗婂井閲忥級 0.07mol/L鐩愰吀婧舵恫锛氬彇6.0ml娴撶洂閰革紝鐢ㄨ捀棣忔按瀹氬鑷1000ml銆傦紙瀹氭爱浠秷鍖栫涓虹粏绠★級 0.1 mol/L鐩愰吀婧舵恫锛氬彇8.3ml娴撶洂閰革紝鐢...
绛旓細姘у寲閿0.02mol=0.02mol鈪81g/mol=1.62g锛屾憾娑蹭负1鍗囷紝灏辫兘閰嶅埗浜嗐
绛旓細鍦ㄦ祴瀹氬弻姘ф按鍚噺鏃讹紝浣跨敤楂橀敯閰搁捑娉曟槸涓绉嶅父瑙佺殑鏂规硶銆備互涓嬫槸瀵硅鏂规硶鐨勬楠よ繘琛屾鼎鑹插拰淇鍚庣殑鍐呭锛1. 閰嶅埗0.02mol路L^-1鐨勯珮閿伴吀閽(KMnO4)婊村畾娑诧細- 鍦ㄥ彴绉颁笂鍑嗙‘绉板彇1.6鍏嬬殑楂橀敯閰搁捑浜庡皬鐑ф澂涓- 鍔犲叆閫傞噺鐨勮捀棣忔按骞舵悈鎷屼互淇冭繘婧惰В銆- 灏嗘憾娑茶浆绉诲埌涓涓500姣崌鐨勬鑹茶瘯鍓傜摱涓- 缁х画...
绛旓細閰嶇疆0.02mol/L鐨勭婧舵恫 绉板彇纰1.27g鍜岀鍖栭捑2.50g锛岀敤姘存憾瑙ｅ苟瀹氬鑷500ml锛岃串浜庢鑹茬摱涓傝 婧舵恫搴旀瘡鏈堥噸鏂閰嶅埗銆傞厤鐨勬椂鍊欒鍔犲皯閲忚捀棣忔按锛屽緟婧惰В鍚庡啀鍔犳按
绛旓細鍒╃敤鍏紡蟻(姘ㄦ按鐨勫瘑搴)脳V(姘ㄦ按鐨勪綋绉)脳w(姘ㄦ按鐨勭櫨鍒嗗惈閲)/17(姘ㄦ按鐨勬懇灏旇川閲)=0.02 鍙眰鍑洪厤缃1L姘ㄦ按婧舵恫鎵闇姘ㄦ按鐨勪綋绉紝鐒跺悗閲忓彇鎵姹備綋绉殑姘ㄦ按瀹氭憾浜1L瀹归噺鐡朵腑鏃㈡垚涓0.02mol/L鐨勬憾娑
