Molar solubility from the Ksp of a given salt

1. A.
   $1.11 \times 10^{- 6}$
2. B.
   $1.77 \times 10^{- 6}$
3. C.
   $1.77 \times 10^{- 2}$
4. D.
   $1.11 \times 10^{- 2}$

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1. A.
   $1.0 \times 10^{- 15}$
2. B.
   $2.7 \times 10^{- 12}$
3. C.
   $3.2 \times 10^{- 10}$
4. D.
   $4.2 \times 10^{- 8}$

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1. A.
   $\sqrt[4]{\frac{1.6 \times 10^{- 30}}{27}}$
2. B.
   $\frac{1.8 \times 10^{- 30}}{27}$
3. C.
   $\sqrt[5]{1.8 \times 10^{- 30}}$
4. D.
   $\sqrt[2]{1.6 \times 10^{- 30}}$

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