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Question

1.2 mol of CH3NH2 (pKb=3.3) is added to 0.8 moles of HCl and the solution is diluted to one litre, resulting pH of solution is:
  1. 10.7
  2. 10.4
  3. 3.6
  4. 11.3

A
3.6
B
10.4
C
10.7
D
11.3
Solution
Verified by Toppr

As we know,
pOH=pKb+logsaltbase

pOH=3.3+log0.80.4=3.6

pH=14pOH=10.4

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