摘要:8.固体A在一定温度下分解生成气体B.C和D:2A.若测得生成气体的质量是相同体积的H2的15倍.则A的摩尔质量是 ( ) A. 30g/mol B. 60g/mol C. 90g/mol D. 120g/mol
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固体A在一定温度下分解生成气体B,C,D(2A=B+2C+3D),若测得生成气体的质量是相同体积氢气的15倍,则固体A的摩尔质量是
- A.30g/mol
- B.60g/mol
- C.90g/mol
- D.120g/mol