What is the pH of a 1.0 L solution that is 0.50 M PO4³- and 0.50 M HPO4²-? a. If 0.01 moles of OH is added to the above buffer, what will the new pH be? Change of volume is negligible. b. If 0.01 moles of OH- is added to 1.0 L of water, what will the new pH be? Change of volume is negligible.

What is the pH of a 1.0 L solution that is 0.50 M PO4³- and 0.50 M HPO4²-? a. If 0.01 moles of OH is added to the above buffer, what will the new pH be? Change of volume is negligible. b. If 0.01 moles of OH- is added to 1.0 L of water, what will the new pH be? Change of volume is negligible.

Chemistry by OpenStax (2015-05-04)

1st Edition

ISBN:9781938168390

Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Chapter14: Acid-base Equilibria

Section: Chapter Questions

Problem 99E: How much solid NaCH3CO23H2O must be added to 0300 L of a 0.50-M acetic acid solution to give a...

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Question

1. What is the pH of a 1.0 L solution that is 0.50 M PO4³- and 0.50 M HPO4²-?
a. If 0.01 moles of OH is added to the above buffer, what will the new pH be? Change
of volume is negligible.
b.
If 0.01 moles of OH is added to 1.0 L of water, what will the new pH be? Change of
volume is negligible.

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