21-30. A. BALANCE THE REACTION IN ACID AND BASE MEDIUM USING HALF REACTIONМЕТНOD.1) Cr2072 + Fe2 Cr + Fe3Cu + HNO3Cu*2+ NO 31-40. B, ACID: CONJUGATE BASE: USING ICE TABLEHA(acid), H (hydronium ion), A (conjugate base) HA -» H* + A4. Find final equilibrium concentrations for HA, H", and A:НА0.65 MAKc = 7.1 x 10Initial Concentrations5) Find final equilibrium concentrations for HA, H* ,and A:H* AНАKc = 4.2 x 10-7Initial Concentrations0.83 M

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21-30. A. BALANCE THE REACTION IN ACID AND BASE MEDIUM USING HALF REACTION МЕТНOD. 1) Cr2O72 + Fe2 -> Cr + Fe3 Cu + HNO3 Cut2 + NO

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter17: Complexation And Precipitation Reactions And Titrations

Section: Chapter Questions

Problem 17.17QAP

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Question

21-30. A. BALANCE THE REACTION IN ACID AND BASE MEDIUM USING HALF REACTION
МЕТНOD.
1) Cr2072 + Fe2 Cr + Fe3
Cu + HNO3
Cu*2
+ NO

31-40. B, ACID: CONJUGATE BASE: USING ICE TABLE
HA(acid), H (hydronium ion), A (conjugate base) HA -
» H* + A
4. Find final equilibrium concentrations for HA, H", and A:
НА
0.65 M
A
Kc = 7.1 x 10
Initial Concentrations
5) Find final equilibrium concentrations for HA, H* ,and A:
H* A
НА
Kc = 4.2 x 10-7
Initial Concentrations
0.83 M

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