A.500 | B.100 | C.28 | D.18 |
0.5L×1.0mol/L |
18moL/L |
A.150mL1mol/L的NaCl | B.50mL2mol/L的NH4Cl |
C.150mL3mol/L的KCl | D.50mL2mol/L的CaCl2 |
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 |
A.C1=2C2 | B.C1>2C2 | C.C1<2C2 | D.无法确定 |
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