The mass of lead bromide that is dissolved in 250 mL of a saturated solution is____ grams.
2 answers
Depends on the temperature of the solution. At zero C, .455g of lead bromide can be dissolved in 100g water. At 100C, about ten times that can be dissolved.
For salts in pure water & with low solubilities, the molar amount of compound delivered into solution can be calculated from simple formulas based on ionization ratios ...
Salt--(Ionz'n Ratio)--Solubility(S)
AB => 1:1 => S = (Ksp)ª; a = ½
AB₂ & A₂B => 1:2 or 2:1 => S = (Ksp/4)ª; a = ⅓
AB₄ or A₄B => 1:4 or 4:1 => S = (Ksp/256)ª; a =⅕
A₂B₃ or A₃B₂ => 2:3 or 3:1 => S = (Ksp/108)ª; a =⅕
Salt--(Ionz'n Ratio)--Solubility(S)
AB => 1:1 => S = (Ksp)ª; a = ½
AB₂ & A₂B => 1:2 or 2:1 => S = (Ksp/4)ª; a = ⅓
AB₄ or A₄B => 1:4 or 4:1 => S = (Ksp/256)ª; a =⅕
A₂B₃ or A₃B₂ => 2:3 or 3:1 => S = (Ksp/108)ª; a =⅕
1 answer