下列溶液中,跟200ml 0.5mol/LNa2CO3溶液所含Na+的物质的量浓度相同的是
A.400ml 0.25mol/LNaCl溶液 | B.200ml 1mol/LNaCl溶液 |
C.100ml 0.5mol/L Na2SO4溶液 | D.100ml 2mol/LNaCl溶液 |
下列溶液中,跟200ml 0.5mol/LNa2CO3溶液所含Na+的物质的量浓度相同的是
A.400ml 0.25mol/LNaCl溶液 | B.200ml 1mol/LNaCl溶液 |
C.100ml 0.5mol/L Na2SO4溶液 | D.100ml 2mol/LNaCl溶液 |
试题篮
()