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CHEMISTRY: acid/base equilibrium

  • #1

Homework Statement


Calculate the end point pH when 50 mL 0.2 mol/L HCl solution reacts exactly with 50 mL 0.2 mol/L NH3 (equivalent to NH4OH) solution.

NH3 Kb=1.8x10^-5


The Attempt at a Solution


I have no idea how to even attempt this question. Can someone please help me? Thanks.
 

Answers and Replies

  • #2
Borek
Mentor
28,326
2,707
What is the composition of the solution at the end point? What ions are present? Only one them can change solution pH - which one?
 

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