将标况下329.41升的NH3完全溶于1升水中,所得溶液的密度为0.9229g/cm3,将标况下329.41升的NH3完全溶于1升水中,所得溶液的密度为0.9229g/cm3,求溶液的摩尔浓度??
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标况下329.41升的NH3 = 329.41/22.4 = 14.7(摩尔) 标况下329.41升的NH3 = 17 * 14.7 = 250(克) 将标况下329.41升的NH3完全溶于1升水中,设溶解后体积为V升则: 0.9229 = (1000 + 250)/(1000V)V = 1.354(升)因此, 溶液的摩尔浓度 = 14.7/V = 10.9(M)