1.

If 250 ml of 0.25 M NaCl solution is diluted with water to voluem of 500 ml, the new concentration of the solution is :

Answer»

0.167 M
0.125 M
0.50 M
0.0625 M

Solution :`M_(1)V_(1)=M_(2)V_(2)`
`0.25 M xx 250 ML M_(2)xx500ml`
`:.M_(2)=(0.25xx250)/(500)=0.125M`


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