The solubility product of SrF_(2)in water is 8xx10^(-10) Calculate its solubility in 0.1 M of aqueous NaF solution. If its solubility is expressed as y xx 10^(-8)then what is the value of 'y' ?

The solubility product of SrF_(2)in water is 8xx10^(-10) Calculate its

1.	The solubility product of SrF_(2)in water is 8xx10^(-10) Calculate its solubility in 0.1 M of aqueous NaF solution. If its solubility is expressed as y xx 10^(-8)then what is the value of 'y' ?
Answer» Solution :` SrF_2hArr underset(S) Sr^(+2)+underset( 2S) (2F) ^(-) ` ` [F^(-) ] " from " 0.1 M NAF " is "0.1 M` TOTAL ` [F^(-) ] =0.1 +2S = (0.1 )^(2) ` ` K_(sp)= S( 0.1) ^(2) rArr(8XX 10 ^(-10) )/( 10^(_2)) =SrArr S = 8 xx 10 ^(-8) `