AP chem equations and reactions summary

Question

Calculate the concentrations of the ions indicated in each of the following solutions.

a. [K^+1] in 0.238 M KNO3

b. [Al^+3] and [SO4^-2] in 0.080 M Al2(SO4)3

Answer 1

a). KNO₃ ==> K⁺ + NO₃^-

For 0.238 M KNO₃, [K⁺] = 0.238 M

b). Al₂(SO₄)₃ ==> 2Al³⁺ + 3SO₄^2-

For 0.080 M Al₂(SO₄)₃, [Al³⁺] = 0.16 M and [SO₄^2-] = 0.24 M