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Ways of Representing the Concentration of a Solution

Which solutio...

Question

Which solution has the highest concentration of $O H^{-}$ ions?

0.010

- molar

H C l

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0.010

- molar

N a O H

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0.010

- molar

B a (O H)_{2}

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0.010

- molar

H_{2} S O_{4}

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0.010

- molar

C_{12} H_{22} O_{11}

(cane sugar)

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Solution

The correct option is C $0.010$ - molar $N a O H$
Since ${B a (O H)}_{2}$ has $n_{f a c t o r}$ of $2$
hence ${c o n c}^{n}$ of ${O H}^{-} = (2 \times 0.01)$ Molar
${c o n c}^{n}$ of ${O H}^{-} (N a O H) = 0.01 M o l a r; (n_{f a c t o r} = 1)$

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