题目内容

NH4NO2分解得氮气和水，在23℃，95549.5 Pa条件下，用排水集气法收集到57.5cm3氮气。已知水的饱和蒸气压为2813.1 Pa，则干燥后氮气的体积为（）

A. 55.8cm3
B. 27.9cm3
C. 46.5cm3
D. 18.6cm3

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在100ml0.01 mol·Lˉ1KCl溶液中,加入1ml 0.01 mol·Lˉ1AgNO3溶液,下列说法正确的是(AgCl的Ksp=1.8×10ˉ10):

A. 有AgCl沉淀析出
B. 无AgCl沉淀
C. 无法确定
D. 有沉淀,但不是AgCl

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