A.100 mL 2.0 mol/L的盐酸与醋酸溶液中氢离子均为0.2NA |
B.标准状况下,22.4 L氦气与22.4 L氟气所含原子数均为2 NA |
C.100 mL 0.5 mol/L的(NH4)2SO4溶液中,含有0.1NA个NH4+ |
D.20 g重水(D2O)中含有的电子数为10NA |
A.7:2 | B.2:7 | C.1:2 | D.2:1 |
A.0.45mol氮气 | B.4℃时10mL 水 |
C.标准状况下5.6L甲烷( CH4 ) | D.10g氖气 |
A.1: 1 | B.1:2 | C.2:1 | D.1:3 |
A.1mol/L | B.2mol/L | C.5mol/L | D.8mol/L |
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