题干

侯氏制碱法的主要反应如下:

①NH3+CO2+H2O═NH4HCO3

②NH4HCO3+NaCl═NH4Cl+NaHCO3

某温度下,向105g饱和NaCl溶液中,通入适量氨气(NH3)和CO2,通过上述反应可制得NaHCO3晶体.

(1)已知①中参加反应的NH3质量为3.4g,则消耗CO2的质量是多少?

(2)反应后称量溶液中析出NaHCO3晶体的质量为9.7g,则剩余溶液的质量是多少?

上一题 下一题 0.0难度 选择题 更新时间:2016-12-05 03:50:16

答案(点此获取答案解析)

解:(1)设:消耗CO2的质量为xNH3+CO2+H2O═NH4HCO317 443.4g x

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