Problem: A buffer contains significant amounts of ammonia and ammonium chloride.Write an equation showing how this buffer neutralizes added acid (HCl).

🤓 Based on our data, we think this question is relevant for Professor Longaker's class at UCD.

FREE Expert Solution

We're being asked to write an equation showing how a buffer neutralizes an added acid (HCl). The buffer is made up of ammonia and ammonium chloride.

Ammonia is a neutral amine and has a formula of NH3

In a solution, ammonia will ionize to produce its conjugate acid. Recall from Bronsted-Lowry definition, bases are proton (H+) acceptors and acids are proton (H+) donors

NH3 will accept H+ from H2O

     NH3     +     H2O    →      NH4+     +     OH-
   (weak base)                       (conjugate acid)

• ammonium chloride has a formula of NH4Cl. It contains the conjugate acid. It is an ion and will break up in the solution: 

View Complete Written Solution
Problem Details

A buffer contains significant amounts of ammonia and ammonium chloride.

Write an equation showing how this buffer neutralizes added acid (HCl).