Question

A weak acid react with strong base ionisation constant of weak acid is 10^-4 to find equilibrium constant

Answer 1

Answer:

WA+SB WA⟶HA SB⟶BOH

Water Dissociation,

H  

2

​  

O⇋H  

+

+OH  

−

 

K  

w

​  

=[H  

+

][OH  

−

]

K  

w

​  

=10  

−14

 

HA⇋H  

+

+A  

−

 

K  

a

​  

=  

[HA]

[H  

+

][A  

−

]

​  

=10  

−4

 

HA+OH  

−

⇋H  

2

​  

O+A  

−

 

K=  

[HA][OH  

−

]

[A  

−

][H  

2

​  

O]

​  

 

K=  

K  

w

​  

 

K  

a

​  

 

​  

=  

10  

−14

 

10  

−4

 

​  

=10  

10

 

December 27, 2019

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Related Questions to Study

Which of the following solutions will be acidic?

(1) 0.1M FeSO  

4

​  

 

(2) 0.1M (NH  

4

​  

)  

2

​  

SO  

4

​  

Explanation: