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Lead thiocyanate, Pb(SCN)2, has a Ksp value of 2.00 × 10−5.
a) Calculate the molar solubility of lead thiocyanate in pure water. The molar solubility is the maximum amount of lead thiocyanate the solution can hold.
b) Calculate the molar solubility of lead thiocyanate in 0.500 M KSCN.
♦ Relevant knowledge
Solubility is the constant of equilibrium of the equilibrium of solubility for partially water-soluble salts. There’s a specific circumstance where the common-ion phenomenon takes place and results from the calculation of the mole solubility for an ordinary salt AB2 in the presence of B anions. In these cases its solubility for the compound is an almost linear relationship to the product of solubility.
1 Answer