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A3B2 is a sparingly soluble salt of molar mass M (g mol^-1) and solubility x g L^-1. The solubility product satisfies Ksp = a(x/M)^5. The value of a is ________.

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A3B2 is a sparingly soluble salt of molar mass M (g mol-1) and solubility x g L-1. The solubility product satisfies Ksp = a(x/M)5. The value of a is ________.

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A3B2 ⇌ 3A+2 + 2B-3

           3s        2s

Ksp = (3s)3(2s)2

Ksp = 108 S5 & s = \(\frac{X}{M}\)

Ksp = 108 \((\frac{X}{M})^5\)

given Ksp = a \((\frac{X}{M})^5\)

Comparing a = 108

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