1.

3.5 gm of solid Barium fouoride is added to water forming 1 lit of solution at 25^(@)C. Solubility product of salt is 4xx 10^(-5). What will be the minimum volume of water to be added to above solution to dissolve the salt completely . (At wt. Bva: 137, F: 19)

Answer»

2 lit
1 lit
0 lit
199 lit

Solution :`(3.5)/(175) =2XX 10^(-2)` moles
`(2xx 10^(-2))/( V) =10^(-2)`
`implies V =2` lit
Added volume =1 lit


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