A.125w/72v | B.250w/72v | C.250w/48v | D.125w/18v |
wg |
96g/mol |
w |
96 |
2 |
3 |
2w |
288 |
w |
288 |
| ||
2V×10-3L |
125w |
72V |
A.1.0mol/L | B.2.0mol/L | C.3.5mol/L | D.4.0mol/L |
A.物质的量(n) | B.物质的量浓度(c) |
C.质量分数(w) | D.摩尔质量(M) |
A.50mL0.5mol/LAlCl3溶液 |
B.100mL0.5mol/LMgCl2溶液 |
C.100mL1mol/LNaCl溶液 |
D.50mL0.5mol/LHCl溶液 |
A.200mL1mol•L-1KCl溶液 |
B.50mL1mol•L-1CaCl2溶液 |
C.150mL2mol•L-1NaCl溶液 |
D.50mL1mol•L-1AlCl3溶液 |
© 2017-2019 超级试练试题库,All Rights Reserved.