12.5g碳酸氢钠的物质的量浓度 1.知道密度怎么算物质的量浓度，比如12.5g/LNaHCO...
12.5g/LNaHCo3\u6eb6\u6db2\u7684\u7269\u8d28\u7684\u91cf\u6d53\u5ea6\u78b3\u9178\u6c22\u94a0\u7684\u6469\u5c14\u8d28\u91cf\u4e3a\uff1a84g/mol
\u5219\uff0c\u7269\u8d28\u7684\u91cf\u6d53\u5ea6\u4e3a\uff1a12.5/84=0.1488mol/L
\u7b2c\u4e00\u9898\u53ef\u4ee5\u7528\u6d53\u5ea6\u7b49\u4e8e\u4e00\u5343\u4e58\u4ee5\u5bc6\u5ea6\u4e58\u4ee5\u7269\u8d28\u7684\u8d28\u91cf\u5206\u6570\u518d\u9664\u4ee5\u6469\u5c14\u8d28\u91cf
碳酸氢钠注射液一般都是5%250ml:12.5g，碳酸氢钠的物质的量=12.5g÷84g/mol
碳酸氢钠的物质的量浓度=12.5g÷84g/mol/0.25L=0.6mol/L
绛旓細纰抽吀姘㈤挔娉ㄥ皠娑蹭竴鑸兘鏄5%250ml:12.5g锛纰抽吀姘㈤挔鐨勭墿璐ㄧ殑閲=12.5g梅84g/mol 纰抽吀姘㈤挔鐨勭墿璐ㄧ殑閲忔祿搴=12.5g梅84g/mol/0.25L=0.6mol/L
绛旓細纰抽吀姘㈤挔鐨勬懇灏旇川閲忎负锛84g/mol 鍒欙紝鐗╄川鐨勯噺娴撳害涓猴細12.5/84=0.1488mol/L
绛旓細濡傛灉鏄250ml婧舵恫闇鍚湁纰抽吀姘㈤挔12.5g鐨勮瘽閭ｄ箞12.5g纰抽吀姘㈤挔鐗╄川鐨勯噺涓12.5/84绾=0.15mol锛屾墍浠ユ祿搴=n/v=0.15mol/0.25L=0.6mol/L,杩欒鏄煡閬撴憾娑插瘑搴︼紝灏辫兘鐭ラ亾闄垚杩欑瑙勬牸娲楁恫闇瑕佸姞姘村灏戞鍗囷紒
绛旓細12.5g姣弆鐨纰抽吀姘㈤挔婧舵恫鐨勬笚閫忔祿搴﹁绠楁柟娉曟槸蟺绛変簬cRT銆傜⒊閰告阿閽犳槸涓绉嶆棤鏈哄寲鍚堢墿锛屽憟鐧借壊缁撴櫠鎬х矇鏈紝鏃犺嚟锛屽懗鍜革紝鏄撴憾浜庢按锛屾笚閫忔祿搴︾敱婧舵恫浣撶Н銆佺墿璐ㄧ殑閲忋鐗╄川鐨勯噺娴搴﹀喅瀹氥
绛旓細鐢12.6gnahco3閰嶅埗娴撳害涓0.15mol/l婧舵恫,鍏朵綋绉负(1L)12.6gNaHCO3鐨勭墿璐ㄧ殑閲=12.6/84=1.5mol鍏朵綋绉=0.15/0.15=1L 纰抽吀姘㈤挔锛圫odiumbicarbonate锛夛紝鍒嗗瓙寮忎负NaHCO₃锛屾槸涓绉嶆棤鏈哄寲鍚堢墿锛岀櫧鑹茬矇鏈垨缁嗗井鏅朵綋锛屾棤鑷紝鍛冲捀锛屾槗婧朵簬姘达紝寰憾浜庝箼閱囷紙涓璇翠笉婧讹級锛屾按婧舵恫鍛堝井纰辨с傚彈鐑槗...
绛旓細婧舵恫鐨勬讳綋绉负350ml锛屽師婧舵恫涓浉褰撲簬鏈0.0118mol鐨纰抽吀姘㈤挔鍜0.0385mol姘寲閽狅紝鍗崇瀛愮殑鎬鐗╄川鐨勯噺涓0.0118脳2+0.0385脳2=0.1006mol锛屾墍浠ヨ婧舵恫鐨勭瀛愭绘祿搴︿负287mmol/L锛屾槸绛夋笚婧舵恫
绛旓細(C*V/1000)/M=锛 12.5*20/1000锛/106
绛旓細5%纰抽吀姘㈤挔1ml锛屾湁50mg纰抽吀姘㈤挔锛岀⒊閰告阿閽犵浉瀵瑰垎瀛愯川閲忎负84銆50/84=0.59523锛屾墍浠5%纰抽吀姘㈤挔1ml绾︽湁0.6mmol銆1ml绾︿负1g锛1g=1000mg锛1000*5锛咃紳50mg銆/iknow-pic.cdn.bcebos.com/cefc1e178a82b90102c05bdb7d8da9773812efed"target="_blank"title="鐐瑰嚮鏌ョ湅澶у浘"class="ikqb_img_alink">/...
绛旓細5%纰抽吀姘㈤挔1ml锛屾湁50mg纰抽吀姘㈤挔锛岀⒊閰告阿閽犵浉瀵瑰垎瀛愯川閲忎负84銆50/84=0.59523锛屾墍浠5%纰抽吀姘㈤挔1ml绾︽湁0.6mmol銆1ml绾︿负1g锛1g=1000mg锛1000*5锛咃紳50mg銆/iknow-pic.cdn.bcebos.com/cefc1e178a82b90102c05bdb7d8da9773812efed"target="_blank"title="鐐瑰嚮鏌ョ湅澶у浘"class="ikqb_img_alink"/...
绛旓細鍙互杩欐牱璁＄畻涓涓 鎽╁皵娴撳害=8.4/84/0.1=1鎽╁皵姣忓崌 鏄鐨勶紝璁＄畻鍏紡濡備笂
