A.32 | B.64 g/ mol | C.32g/ mol | D.64 |
A.1molKClO3 | B.0.5molH3PO4 | C.32g O2 | D.3.01×1023个CO2 |
A.100ml 1mol/LNaCl溶液 | B.75ml 1mol/LMgCl2溶液 |
C.150ml 3mol/LKCl溶液 | D.25ml 2mol/LAlCl3溶液 |
A.常温常压下,0.05 NA个CO2分子所占的体积是1.12L |
B.氨气的摩尔质量和NA个氨分子的质量相等 |
C.常温常压下,32g O2和34g H2S气体分子个数比为1:1 |
D.标准状况下, NA个水分子所占的体积约为22.4L |
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