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Why the following aqueous solutions acts as buffer? A. NH4CN B. 100 ml each of HCN and NaCN in equal concentration Pls explain.

Why the following aqueous solutions acts as buffer?
A. NH4CN
B. 100 ml each of HCN and NaCN in equal concentration
Pls explain.

Grade:11

1 Answers

Sahani Kumar
99 Points
5 years ago
Option B is correct.   And it is a acidic buffer. 
Acidic buffer=solution of (weak acid(like HCN) )+(salt(like NaCN)  of this weak acid with strong base) 
Note:NaCN is made on reaction between weak acid HCN and strong base NaOH. 
 
 

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