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Salt of Weak Acid and Strong Base

Q. The pH of ...

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Q. The pH of 1 litre solution of strong monobasic acid is 2. Find the mount of water in litres added so that its new pH will be 4

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Q. Solution of a monobasic acid has a pH =

5

. If one mL of it diluted to

1

litre, what will be the pH of the resulting solution?

pH calculation upon dilution of a strong acid solution is generally done by equating $n_{H^{+}}$ in original solution and diluted solution. However, if strong acid solution is very dilute, then $H^{+}$ from water are also to be considered. Take log3.7 = 0.568 and answer the following questions.

A 1 litre solution of pH = 4 (solution of strong acid) is added to the $\frac{7}{3}$ litre of water. What is the pH of resulting solution?

Q. A litre solution of pH = 1 diluted upto 10 times. what volume of a solution with pH=2 is to be added in diluted solution so that final pH remains '2 '.

Q. One litre of

1 M

solution of an acid

H A

K_{a} = 10^{- 4}

25^{o} C

) has pH=2. It is diluted by water so that new pH becomes double. The solution was diluted to

5 \times 10^{a}

ml. The value of

a

1 m l

0.1

N H C l

1

litre of a solution of

p H

4

p H

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Salt of Weak Acid and Strong Base

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