1.

How to make buffer of ammonia (pK_a = 9.25), What is the pH of this buffer ?

Answer»

Solution :pH of buffer solution prepared from AMMONIA and ammonium chloridesolution having equal CONCENTRATION is 9.25
pH = 9.25 + `"[Conjugate ACID]"/"[Base]"=([NH_4^+])/([NH_3])`
But `[NH_4^+] approx [NH_3]` , So pH = 9.25


Discussion

No Comment Found