Consider a 500 mL buffer made of 0.500 M formic acid (Pk. = 3.75) and 0.250 M sodium formate. a. What is the initial pH of the buffer? b. What is the change in pH after 50 mL of 1.00 M HCI has been added to the buffer? c. If the original buffer (from part a) had either 0.600 M HCl or 0.400 M NaOH spilled into it an the new pH was measured to be 4.12; which was spilled and how many mLs?

Consider a 500 mL buffer made of 0.500 M formic acid (Pk. = 3.75) and 0.250 M sodium formate. a. What is the initial pH of the buffer? b. What is the change in pH after 50 mL of 1.00 M HCI has been added to the buffer? c. If the original buffer (from part a) had either 0.600 M HCl or 0.400 M NaOH spilled into it an the new pH was measured to be 4.12; which was spilled and how many mLs?

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter14: Principles Of Neutralization Titrations

Section: Chapter Questions

Problem 14.7QAP

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