What is the pH of a buffer that contains 0.356 M H2C6H606 and0.647 М НС,Н,О6?Ka1 = 7.9 × 10-5Ka2 = 1.6 x 10-12IMPORTANT: When entering your answer:• Erter the number only (no units)• Do not leave any spaces• Use a leading zero before the decimal when necessaryReport your number to 2 decimal places (regardless of thesignificant figures)• Correctly round your answer to the 2nd decimal place(allowed margin of error is only + 0.01, so always use un-rounded numbers in your calculations)Examples: 0.12 or 9.87

In the given problem, H2C6O6 is a weak acid and HC6O6- is the salt form of the weak acid. pH of a…

Answered: What is the pH of a buffer that…

What is the pH of a buffer that contains 0.356 M H2C,H6O6 and 0.647 M HC6H606? Ka1 = 7.9 x 10-5 %3D Ka2 = 1.6 x 10-12 %3D

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter14: Acid- Base Equilibria

Section: Chapter Questions

Problem 4RQ: A good buffer generally contains relatively equal concentrations of weak acid and conjugate base. If...

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Concept explainers

Precipitation Titration

Precipitation analysis is used to analyze drugs, and to measure the salt content in food and beverages. It is an important concept from the examination point of view many practical questions are asked on the topic. This topic is significant in the professional exams for both undergraduate and graduate courses, especially for

Question

What is the pH of a buffer that contains 0.356 M H2C6H606 and
0.647 М НС,Н,О6?
Ka1 = 7.9 × 10-5
Ka2 = 1.6 x 10-12
IMPORTANT: When entering your answer:
• Erter the number only (no units)
• Do not leave any spaces
• Use a leading zero before the decimal when necessary
Report your number to 2 decimal places (regardless of the
significant figures)
• Correctly round your answer to the 2nd decimal place
(allowed margin of error is only + 0.01, so always use un-
rounded numbers in your calculations)
Examples: 0.12 or 9.87

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