The solubility product of a salt having general formula M X_2 , in...

The solubility product of a salt having general formula

M X_2

, in water is:

4 \times 10^{-12}

. The concentration of

\mathrm{M}^{2+}

ions in the aqueous solution of the salt is The solubility product of a salt having general formula M X_2 , in water is: 4 × 10^ -12 . The concentration of M^ 2+

Options

A $2.0 \times 10^{-6} \mathrm{M}$
B $1.0 \times 10^{-4} \mathrm{M}$
C $1.6 \times 10^{-4} \mathrm{M}$
D $4.0 \times 10^{-10} \mathrm{M}$

Correct answer

B. $1.0 \times 10^{-4} \mathrm{M}$

Step-by-step solution

\mathrm{~K}_{\mathrm{sp}}=4 \mathrm{~s}^3, \mathrm{~S}=\sqrt[3]{\frac{\mathrm{K}_{\mathrm{sp}}}{4}}=1 \times 10^{-4}

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