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Salt of Weak Acid and Strong Base

30.Calculate ...

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30.Calculate the pH of a solution which contains 9.9ml of 1 Mol HCL and 100ml of 0.1 Mol NaOH

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Q. Calculate pH of a solution which contains 9.9 mL of 1 M

H C l

and 100 mL of 0.1 M

N a O H

l o g (9.1) = 0.96

Q. Calculate the ratio of pH of a solution containing 1 mol. of

C H_{3} C O O N a + 1 m o l

of HCl per litre and of other solution containing 1 mol of

C H_{3} C O O N a + 1 m o l

C H_{3} C O O H

Q. Calculate the ratio of pH of a solution containing 1 mol of

C H_{3} C O O N a

H C l

per litre to another solution containing 1 mol of

C H_{3} C O O N a

+ 1 mol of acetic acid per litre.

Q. Calculate the change in pH of one litre of buffer solution containing

0.10

N H_{3}

N H_{4} C l

upon addition of

(i)

0.02

mol of dissolved gaseous

H C l

(i i)

0.02

mol of dissolved

N a O H

. Assume no change in solution volume.

(K_{b} f o r N H_{3} = 1.8 \times 10^{- 5})

1.0 L

solution containing

0.1

N H_{3}

N H_{4} C l, 0.05

mol NaOH is added. The change in pH will be :

(p K_{a}

C H_{3} C O O H = 4.74

)

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Salt of Weak Acid and Strong Base

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