A.
| B.
| ||||||||
C.
| D.
|
ag |
27g/mol |
a |
27 |
3 |
2 |
3 |
2 |
a |
27 |
a |
18 |
| ||
V×10-3L |
500a |
9V |
A.4L 0.5mol/L NaCl溶液 |
B.1L 0.3mol/L Na2SO4溶液 |
C.0.8L 0.4mol/L NaOH溶液 |
D.2L 0.15mol/L Na3PO4溶液 |
A.2mol/L | B.1mol/L | C.0.5mol/L | D.0.1mol/L |
A.该溶液的物质的量浓度为1mol•L-1 |
B.该溶液中含有58.5gNaCl |
C.配制100mL该溶液需用5.85gNaCl |
D.量取100mL该溶液倒入烧杯中,烧杯中Na+的物质的量为0.1mol |
A.
| B.
| ||||
C.1.25dmol•L-1 | D.2.5dmol•L-1 |
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