A.0.30mol/L | B.0.25mol/L | C.0.50mol/L | D.0.45mol/L |
0.09mol |
0.2L |
A.1:1:1 | B.3:2:2 | C.3:2:3 | D.1:1:3 |
A.C(Na+)=2.0mol/L | B.n(Na+)=0.1mol |
C.C(Na+)=2C(SO42-) | D.n(Na+)=n(SO42-) |
A.c1=2c2 | B.c1>2c2 | C.c1<2c2 | D.c2<c1<2c2 |
A.将5.85gNaCl晶体溶入100mL水中,制得0.1mol/L的NaCl溶液 | ||
B.将25g无水CuSO4溶于水制成100mL溶液,其浓度为1mol/L | ||
C.将wga%的NaCl溶液蒸发掉
| ||
D.将1体积c1mol/L的硫酸用水稀释为5体积,稀溶液的浓度为0.2c1mol/L |
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