MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Factors Affecting Alpha

Calculate the...

Question

Calculate the the $p H$ at the equivalence point in a titration of $50.0 m L$ of $0.40 M$ ${N H}_{10}$ with $0.40 M$ $H C l$ .

A

4.98

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

B

6.65

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

7.35

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

9.12

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A $4.98$
A solution that resists change in $p H$ value upon addition of a small amount of strong acid or base (less than $1$ %) or when the solution is diluted is called buffer solution.
Acidic buffer solution: An acidic buffer solution consists of a solution of a weak acid and its salt with a strong base.
For acidic buffer solution, $p H = p K_{a} + l o g \frac{[s a l t]}{[a c i d]}$
$∴ p H = p K_{a} + l o g \frac{[0.1]}{[0.1]} = 4.95$

Suggest Corrections

thumbs-up

0

Similar questions

Q. Calculate the hydronium ion concentration and pH at the equivalence point in a titration of

50.0 m L

0.40 M {N H}_{3}

0.40 M

K_{b} = 2 X 10^{- 5}

Q. Calculate the hydronium ion concentration and the

p H

at the equivalence point in a titration of

50.0 m L

0.40 M N H_{3}

0.40 M H C l

(50.0 m L)

was titrated with

0.1 M H C l

p H

of the solution after the addition of

10.0 m L

25.0 m L

were found to be

9.84

9.24

, respectively. Calculate

K_{b}

of the base and

p H

at the equivalence point.

(50.0 m L)

was titrated with

0.1 M

N a O H

p H

10.0 m L

25.0 m L

of base have been added are found to be

4.16

4.76

respectively. Calculate

K_{a}

of the acid and

p H

at the equivalence point.

Q. Calculate the

p H

at equivalence point of the titration between

0.1 M C H_{3} C O O H (25 m l)

0.05 M N a O H K_{a}

C H_{3} C O O H = 1.8 \times 10^{- 5}

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Degree of Dissociation

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Factors Affecting Alpha

Standard XII Chemistry

Join BYJU'S Learning Program

CrossIcon