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Salt of Strong Acid and Weak Base

What is the ...

Question

What is the $K_{b}$ of a weak base that produces one ${O H}^{-}$ per molecule if a $0.05 M$ solution is $2.5$ % ionized?

7.8 \times 10^{- 2}

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1.6 \times 10^{- 6}

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3.2 \times 10^{- 5}

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1.2 \times 10^{- 3}

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Solution

The correct option is C $3.2 \times 10^{- 5}$

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Similar questions

0.05 M

K_{b}

[O H^{-}]

N H_{4} O H (k_{b}) = 1.6 \times 10^{- 5}

l o g 2 = 0.30

N H_{4} O H

p H

K_{b}

N H_{4} O H

1.8 \times 10^{- 5} M

(K_{a} = 2 \times 10^{- 6})

(K_{b} = 5 \times 10^{- 7})

[O H^{-}]

N H_{4} O H (k_{b}) = 1.6 \times 10^{- 5}

l o g 2 = 0.30

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