5. A buffer is made by mixing 1.250 mol formic acid, HCOOH, with 0.750 mol sodium formate, HCOONa in enough water for a total volume of 1.00L. The Ka of formic acid is 1.87 x 10-4 a. What is the pH of this buffer? b. If 0.075 mol HCI is added to this buffer, what is the pH of the resulting buffer? (assume no volume changes) c. If 0.055 mol NaOH is added to this buffer, what is the pH of the resulting buffer? (Assume no volume changes)
5. A buffer is made by mixing 1.250 mol formic acid, HCOOH, with 0.750 mol sodium formate, HCOONa in enough water for a total volume of 1.00L. The Ka of formic acid is 1.87 x 10-4 a. What is the pH of this buffer? b. If 0.075 mol HCI is added to this buffer, what is the pH of the resulting buffer? (assume no volume changes) c. If 0.055 mol NaOH is added to this buffer, what is the pH of the resulting buffer? (Assume no volume changes)
Chemistry
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Chapter1: Chemical Foundations
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![5. A buffer is made by mixing 1.250 mol formic acid, HCOOH, with 0.750 mol sodium
formate, HCOONa in enough water for a total volume of 1.00L. The Ka of formic acid is
1.87 x 10-4
a. What is the pH of this buffer?
b. If 0.075 mol HCI is added to this buffer, what is the pH of the resulting buffer?
(assume no volume changes)
c. If 0.055 mol NaOH is added to this buffer, what is the pH of the resulting buffer?
(Assume no volume changes)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5b8356a3-8ffd-4b0d-99e3-2fe5523dae0d%2Fbe1a13de-65d9-4187-800d-9f4cc60d7d1e%2Flh0qjs6_processed.jpeg&w=3840&q=75)
Transcribed Image Text:5. A buffer is made by mixing 1.250 mol formic acid, HCOOH, with 0.750 mol sodium
formate, HCOONa in enough water for a total volume of 1.00L. The Ka of formic acid is
1.87 x 10-4
a. What is the pH of this buffer?
b. If 0.075 mol HCI is added to this buffer, what is the pH of the resulting buffer?
(assume no volume changes)
c. If 0.055 mol NaOH is added to this buffer, what is the pH of the resulting buffer?
(Assume no volume changes)
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