A.a/22.4 | B.ab/(22400+36.5a) |
C.ab/22400 | D.1000ab/(22400+36.5a) |
A.125a/9V mol/L | B.125a/18V mol/L |
C.125a/36V mol/L | D.125a/54V mol/L |
A.大于(ω1+ω2)/2 | B.等于(ω1+ω2)/2 |
C.小于(ω1+ω2)/2 | D.无法计算 |
A.加热条件下,1mol Cl2与足量Fe粉充分反应,转移的电子数为3NA |
B.常温常压下,14g N2所含的原子数目为NA |
C.常温下,1mol/L (NH4)2SO4溶液中含SO42-数为NA |
D.标准状况下,2.24L H2O中含有的电子数为NA |
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