p_Ka of a weak acid (H_A) and pKb of a weak base (BOH) are 3.2 and 3.4, respectively. The p_H of their salt (AB) solution is

7.2

6.9

7.0

1.0

Solution

6.9

Given
pKa (HA) = 3.2
pKb (BOH) = 3.4
As given salt is of weak acid and weak base
therefore,
pH = 7 + (1/2)pKa - (1/2)pKb
= 7 + (1/2)(3.2) - (1/2)(3.4)
= 6.9

Some More Questions From Equilibrium Chapter

What is equilibrium?

Give two examples of physical equilibrium.

What kind of molecules in a liquid can evaporate?

Name the factors on which vapour pressure of any liquid depends.

Which measurable property becomes constant in water vapour equilibrium?

Give an example from daily life in which there is gas solution equilibrium?

A crystal of common salt of a given mass is kept in its aqueous solution. After 24 hours, its mass remains the same. Is the crystal in equilibrium with the solution?

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Equilibrium

p_Ka of a weak acid (H_A) and pKb of a weak base (BOH) are 3.2 and 3.4, respectively. The p_H of their salt (AB) solution is

7.2

6.9

7.0

1.0

Some More Questions From Equilibrium Chapter

What is equilibrium?

Give two examples of physical equilibrium.

What kind of molecules in a liquid can evaporate?

Name the factors on which vapour pressure of any liquid depends.

Which measurable property becomes constant in water vapour equilibrium?

Give an example from daily life in which there is gas solution equilibrium?

A crystal of common salt of a given mass is kept in its aqueous solution. After 24 hours, its mass remains the same. Is the crystal in equilibrium with the solution?

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NCERT Sample Papers

Entrance Exams Preparation

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Equilibrium

pKa of a weak acid (HA) and pKb of a weak base (BOH) are 3.2 and 3.4, respectively. The pH of their salt (AB) solution is 7.2 6.9 7.0 1.0

Some More Questions From Equilibrium Chapter

What is equilibrium?

Give two examples of physical equilibrium.

What kind of molecules in a liquid can evaporate?

Name the factors on which vapour pressure of any liquid depends.

Which measurable property becomes constant in water vapour equilibrium?

Give an example from daily life in which there is gas solution equilibrium?

A crystal of common salt of a given mass is kept in its aqueous solution. After 24 hours, its mass remains the same. Is the crystal in equilibrium with the solution?

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

p_Ka of a weak acid (H_A) and pKb of a weak base (BOH) are 3.2 and 3.4, respectively. The p_H of their salt (AB) solution is

7.2

6.9

7.0

1.0