What is the equilibrium Mg2+ concentration when 1.75 L of a 0.153 M magnesium acetate solution...

What is the equilibrium Mg²⁺ concentration when 1.75 L of a 0.153 M magnesium acetate solution are mixed with 1.69 L of a 0.292 M ammonium carbonate solution?

[Mg²⁺] =

Expert Solution

concentration of Mg(CH3COO)2 = 1.75 x 0.153 / (1.75 + 1.69)

= 0.0778 M

concentration of (NH4)2CO3 = 1.69 x 0.292 / (1.69 + 1.75)

= 0.143 M

Mg+2 + CO32- ----------------> MgCO3

1 1 1

0.0778 0.143

MgCO3 ----------------> Mg+2 + CO32-

Ksp = [Mg+2][CO32-]

6.82 x 10^-6 = [Mg+2] [0.0652]

[Mg+2] = 1.05 x 10^-4 M

queen_honey_blossom answered 2 years ago

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