21. Solving a chemistry problem

21. Solving a chemistry problem

9. The solubility of calcium phosphate at 25 C is 4.0×10-6 mol/l.
a) Write the salt dissociation equation.
b) Write down the expression for the solubility product.
c) Calculate the concentration of salt ions.
d) Calculate the solubility product of this salt.
e) Determine whether a precipitate will form when mixing 500 ml of phosphate solution
sodium with a concentration of 0.002 mol / l and 750 ml of calcium nitrate solution with
concentration 0.01 mol/l.

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