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Molarity

The pH value ...

Question

The pH value of $0.1 m o l / l i t r e$ $H C l$ is approximately $1$ . The approximate pH value of $0.05 m o l / l i t r e$ $H_{2} {S O}_{4}$ is most likely to be:

0.05

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0.5

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1

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2

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Solution

The correct option is B $1$
$H_{2} S O_{4}$ dissociates to give 2 $H^{+}$ ions so $[H^{+}] = 0.05 \times 2 = 0.1 M$ so $p H = 1$ .

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