A Mixture Contains 400

Short Answer

A mixture contains 400.0 mL of 1.00 M NH₃(aq), whose pK_b is = 4.76, and 400.0 mL of 1.00 M NH₄Cl(aq). 200.0 mL of 0.0500 M HCl(aq)were added to the mixture. What is the pH of the buffer before addition of the acid and after addition of the acid? Hint: Calculate the pH of this buffer solution once before the acid and base are neutralized, and again once after. Organizing your information will be just as important as applying chemistry concepts.