A.0.5摩/升 | B.0.1摩/升 | C.0.05摩/升 | D.1摩/升 |
(0.12x-0.08x)mol |
(0.12+0.08)L |
A.5m1、0.1mol•L-1的AlC13溶液 |
B.10m1、0.1mo1•L-1的CaC12溶液 |
C.20m1、0.2mo1•L-1的KC1溶液 |
D.50m1、0.25mo1•L-1的NaC1溶液 |
A.HCl溶液 | B.H2SO4溶液 |
C.CH3COOH溶液 | D.纯水 |
A.3 mol | B.0.3 mol | C.0.1 mol | D.5.85 g |
A.H2O的摩尔质量是18 |
B.等质量的O2和O3中所含的氧原子数相同 |
C.常温下,22.4 L NO2中所含的氧原子数为2 NA |
D.4 g NaOH溶解于500 mL水中,所得溶液的物质的量浓度为0.2 mol•L-1 |
A.1:1 | B.3:2 | C.2:3 | D.1:2 |
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