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Question: The pH of Ba(OH)<sub>2</sub> solution is 13. The number millimoles of Ba(OH)<sub>2</sub> present in ...

The pH of Ba(OH)2 solution is 13. The number millimoles of Ba(OH)2 present in 10 ml of solution would be

A

1.00

B

0.50

C

10.00

D

15.00

Answer

0.50

Explanation

Solution

[OH–] = 0.1

And conc. of Ba(OH)2 = 0.12\frac{0.1}{2}

\ The no. of millimoles of Ba(OH)2 present in 10 ml solution = 0.12\frac{0.1}{2}× 10 × 10–3 × 103 = 0.5