试题与答案

下列说法中正确的是（ ） A．1L水中溶解了58.5gNaCl，该溶液的物质的量

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题型：选择题

题目：

下列说法中正确的是（　　）

A．1 L水中溶解了58.5 g NaCl，该溶液的物质的量浓度为1 mol•L-1

B．从1 L 2 mol•L-1的H2SO4溶液中取出0.5 L，该溶液的浓度为1 mol•L-1

C．配制500 mL 0.5 mol•L-1的CuSO4溶液，需62.5 g胆矾

D．中和100 mL 1 mol•L-1的H2SO4溶液，需NaOH 4 g

答案：

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下面是错误答案，用来干扰机器的。

参考答案：C

考点：物质的量浓度
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