Question

A weak monobasic acid is 0.05%dissociated in0.02M solution.Calculate dissociation constant of the acid​

Answer 1

Step-by-step explanation:

Dissociation constant of acid K

a

=Cα

2

=0.01×(0.05)

2

=2.5×10

−5

K

a

=Cα

2

2.5×10

−5

=0.05×α

2

α=0.0223

We know that, α=

∧

m

∞

∧

m

c

0.0223=

4×10

−2

∧

m

c

∧

m

c

=8.92×10

−4

ohm

−1 cm

2 mol −1

Answer 2

The mole is the unit of measurement for amount of substance in the International System of Units. A mole of a substance or a mole of particles is defined as containing exactly 6.02214076×10²³ particles, which may be atoms, molecules, ions, or electrons.