Question
Chemistry Question on reaction mechanism
20 mL of 0.1 M NH4OH is mixed with 40 mL of 0.05 M HCl.The pH of the mixture is nearest to(Given :Kb(NH4OH) = 1×10–5,log2 = 0.30,log3 = 0.48, log5 = 0.69,log7 = 0.84,log11 = 1.04)
A
3.2
B
4.2
C
5.2
D
6.2
Answer
5.2
Explanation
Solution
∴ In final solution 2 millimoles of NH4Cl is present.