A.水的摩尔质量是18 g |
B.2 mol水的摩尔质量是1 mol水的摩尔质量的2倍 |
C.任何物质的摩尔质量都等于它的相对原子(或分子)质量 |
D.水的摩尔质量是氢气的摩尔质量的9倍 |
A.Fe的摩尔质量是56g |
B.NH3的摩尔质量是17 g/mol |
C.氧的摩尔质量是16 g/mol |
D.1 mol Na的质量是23 g/mol |
A.SO2的摩尔质量是64g/mol |
B.常温常压下,64gSO2中所含的原子数为3×6.02×1023个 |
C.1molSO3的质量是80g |
D.标况下,1molSO3的体积为22.4L |
A.64g | B.64 | C.64g/mol | D.32g/mol |
A.16g | B.32g | C.64g/mol | D.32g/mol |
© 2017-2019 超级试练试题库,All Rights Reserved.