由Cu和Cu2O、CuO组成的混合物,加入100mL0.6mol/L的HNO3溶液恰好使混合物

由Cu和Cu2O、CuO组成的混合物,加入100mL0.6mol/L的HNO3溶液恰好使混合物完全溶解,同时收集到224mLNO气体(标准状况下)。回答下列问题:
(1)写出Cu2O跟稀硝酸反应的化学方程式。
(2)产物中硝酸铜的物质的量为多少?
(3)若原混合物中有0.01molCu,则其中Cu2O的物质的量为多少?CuO的物质的量为多少?
(4)若原混合物中Cu的物质的量为x,求其中Cu2O、CuO的物质的量(用含x的代数式表示)及x的取值范围。

答案


(1)3Cu2O+14HNO3=6Cu(NO32+2NO↑+7H2O
(2)0.025mol
(3)0.005mol;    0.005mol
(4)n(Cu2O)=0.015mol-x;    n(CuO)=x-0.005mol;    0.005mol<x<0.015mol

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