Question

1) A) A buffer solution made from acetic acid (HCH₃CO₂) and sodium acetate (NaCH₃CO₂) was titrated with hydrochloric acid ? B) A buffer solution made from nitrous acid and sodium nitrite was titrated with sodium hydroxide. What is the net ionic equation for the reaction?

2) Which of the following pairs will not form a buffer solution? A ) H₃PO₄/KH₂PO₄ B) NH₃/ NH₄Cl C) KOH, HCl D) HC₂H₃O₂/ NaOH E) KOH/ HF

Answer 1

Solution :- A solutions which resists Change in iG PH on adding small amount of strong acid or strong base is Glled buffer solutions. This a buffer solution has reserve acidit ar reserve allcalinity y acid is added, the alkaline Part will neutralize it and if base is added, the acidie Part will neutralijs it. 1. A) (n CH3 CO2 + ewa CH3 CO2 ) Constites an acidie buffer. when reel is added the reactens Helgst Macta eoza CH3 CoolMagit Nachos ce Hlex & nat tehacer CH3Coon trattor i net lonic reaction is : [ Hats + CH3 Cozag> CH3 Cook

3) (ING & NANO) constitute an acidie buffer. when Nook is added, the which occurs is HNO2, gest Nadlego - Na Norgt 1920 ce. He is no los tramo toño, Not Eno zmot 120 g) - wet lonie reacters is - Hegy + orters > H2O ces ® the two mais type of buffer are: (1) (weals and tits salt with Shay bge] → acidee buffer (i) (weak bastits salt wises strapaces) besie buffer : Pair which will not form a buffer solutis is 17 Koll, HU