A.1000mL | B.500mL | C.100mL | D.50mL |
n |
V |
n |
C |
| ||
C |
m |
MC |
20g |
40g/mol×1mol/L |
A.40mL水 |
B.10mL0.2mol/LNa2CO3溶液 |
C.50mL0.01mol/L氯化钡溶液 |
D.100mL0.01mol/L盐酸 |
A.K+的物质的量为0.1 mol |
B.SO42-的物质的量为0.2 mol |
C.K+的物质的量浓度为0.1 mol/L |
D.SO42-的物质的量浓度为0.1 mol/L |
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