1.

What will be the molarity of chloroform in the water sample which contains 15 ppm chloroform by mass?

Answer»

`1.25xx10^(-4)` m
`2.5xx10^(-4)` m
`1.5xx10^(-3)` m
`1.25xx10^(-5)`m

Solution :15 PPM `=(15)/(10^6)xx10^2=1.5xx10^(-3)G`
MOLARITY of `CHCl_3 " solution " =(1.5xx10^(-3))/(100)xx(1000)/(119.5)`
`=1.25xx10^(-4)`


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