Ksp of SrF2 in water is 8*10^-10. calculate the solubility in water and 0.1M NaF solution

Hi,SrF2 s Sr+2   + 2F-Ksp = Sr+2 F-2Let the solubility of SrF2 in 0.1 M NaF be x mol L-1 NaF being a strong electrolyte ionises completely and supply 0.1 mol L-1 F- Sr+2 = x  mol L-1 F- = 2x + 0.1mol L-1= 0.1mol L-1Ksp = x0.128 ×10-10 = x ×10-2x = 8 ×10-8 mol L-1Regards

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