A.46 g | B.44 | C.64 g/mol | D.32 g/mol |
A.物质标准状况的体积和质量 |
B.该物质一个分子的真实质量 |
C.物质的质量和物质的量 |
D.该物质气态标准状况时的密度 |
A.148g | B.148g/mol | C.180g/mol | D.146g |
A. | B. | C. | D. |
A.78 | B.78g | C.78g/mol | D.78mol |
A.28.4g | B.28.4g/mol | C.71g | D.71g/mol |
© 2017-2019 超级试练试题库,All Rights Reserved.