问题 填空题

现有NaHCO3和KHCO3以等物质的量混合而成的固体混合物ag,将该混合物与100mL盐酸反应,计算:(题中涉及的气体体积均以标准状况下的体积计算,填空时可以用带字母的公式表示。)

(1)该混合物中NaHCO3与KHCO3的质量比为__________________。

(2)如该混合物与盐酸恰好完全反应,则盐酸的物质的量的浓度为___________________。

(3)如果盐酸过量,生成CO2的体积为_____________L。

(4)如果反应后碳酸氢盐有剩余,盐酸不足,要计算生成CO2的体积,还需要知道______________。

(5)着NaHCO3和KHCO3不是以等物质的量混合,则ag NaHCO3和KHCO3的固体混合物与足量的盐酸完全反应时生成CO2的体积范围是___________________。

答案

(1)84:100

(2)

(3)22.4a/92

(4)盐酸物质的量浓度

(5)22.4a/100<V<22.4a/84

选择题
填空题

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