What is the pH of 10L of a buffer solution containing 0.01M NH_4 Cl and 0.1M NH_4 OH having pK_b of 5 ?

Question

Accepted Answer

Correct answer: C. (c) Concentration of salt ( NH_4 Cl )=0.01M Concentration of base ( NH_4 OH )=0.1M pK_b=5 pOH= pK_b+ log ⁡ [ Salt ] [ Base ] ⇒ pOH=5+ log ⁡ 0.010.1=4 = pH=14- pOH=14-4=10

$What is the pH of 10 L of a buffer solution containing 0.01 M NH_{4} Cl and 0.1 M NH_{4} OH having pK_{b} of 5 ?$

Solution

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