化学必采纳,第二图中,20ml怎么知道的,从哪里来的
\u5316\u5b66\u9ad8\u624b\u6765\u3002\u53d1\u56fe\uff0c\u7b80\u5355\u5c312\u9898\u9009C,HI\u5206\u4e24\u90e8\u5206\uff0c\u4e00\u90e8\u5206\u7528\u4e8e\uff082\uff09\u65b9\u7a0b\u5f0f\u7684\u53cd\u5e94\uff0c\u53ef\u7b97\u51fa\u662f1mol/L\uff0c\u53e6\u4e00\u90e8\u5206\u6ca1\u53c2\u52a0\uff082\uff09\u4e2d\u7684\u53cd\u5e94\uff0c\u662f\u5269\u4f59\u4ea7\u7269\uff0c\u56e0\u4e3aNH3\u4e0eHI\u4e00\u6837\u591a\uff0c\u6545NH3\u6d53\u5ea6\u4e3a5mol/L\uff0c\u7b97\u5f97\u5e73\u8861\u5e38\u6570\u4e3a4\u00d75=20
(1)10\u338f\u00d798\uff05=9.8\u338f
(2) w(N)=28\u00f7\uff0828+4+16\u00d73\uff09\u00d7100\uff05=35\uff05
\uff083\uff099.8\u338f\u00d735\uff05=3.43\u338f
\uff084\uff093.43\u338f\u00f710\u338f\u00d7100\uff05=34.3\uff05
酸碱共50,酸30,碱20 V1+V2=50
v1+v2不是恒等于50么
v1=30,v2不就等于20了么
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