Ask Question
10 August, 19:11

What is the ph of a solution that results from mixing together equal volumes of a 0.020 m solution of ammonia and a 0.010 m solution of hydrochloric acid? (pka of nh4 + = 9.25) ?

+2
Answers (1)
  1. 10 August, 19:21
    0
    pH = 9.25

    Explanation:

    Reaction of ammonia (NH₃) with hydrochloric acid (HCl) is:

    NH₃ + HCl → NH₄⁺ + Cl⁻

    As equal volumes of a 0.020M solution of NH₃ and a 0.010M solution of react, molarity of NH₃ after reaction is 0.010M and 0.010M of NH₄⁺.

    For the buffer NH₄⁺/NH₃ H-H equation to find pH of solution is:

    pH = pKa + log₁₀ [NH₃] / [NH₄⁺]

    pH = 9.25 + log₁₀ [0.010M] / [0.010M]

    pH = 9.25
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “What is the ph of a solution that results from mixing together equal volumes of a 0.020 m solution of ammonia and a 0.010 m solution of ...” in 📗 Chemistry if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers