Question

(UNITS_26_27 Exercise 17.34 - Enhanced - with Feedback A buffer contains significant amounts of ammonia and ammonium chloride.

Answer 1

page-1 Buffer solution : A buffer is an aquous solution changes in pH levels upon the acid or alkali. that can addition of resist significant small amount of There are two important terms lis Buffer Capacity vig Buffer sange so buffer capacity is the amount of acid or base that can be added before pH begins to change significantly and a buffer sange is the specific pH range in which a buffer effectively neutralizes the added acid or bate, while maintaining nearly constant ph. There are two types of buffer solutions : Acidic buffer and the basic / Alkaline buffer * Acidic buffer solutions have a pH greater than 7.94 is generally made from a weak acid and one of its salts (conjugate acid). * Alkaline buffer solutions have a ph greater than 7 and are made from a weak base and one of its salts. Hence, our given solation is alkaline solution, which is a mixture of base (ammonia) and a salt of base (ammonium chloride). less