1. Bismuth sulphide (Bi2S3) has a solubility of 1.0x10^-15 mol dm^-3 at 25C. Calculate the Ksp of bismuth sulphide.
2.The solubilty product of silver phosphate, Ag3PO4, is 3.4x10^-14 mol^4 dm^-12 at 298K. Calculate its solubility in mol dm^-3 at 298K.
Thank you
更新1:
(3x)^3 . x =3.4.10^-4??? it should be (3x)^3*x = 3.4*10^-14 ??
