1. Foundations
Ph And Buffers — Quiz
Test your understanding of ph and buffers with 5 practice questions.
Practice Questions
Question 1
Which of the following defines pH?
Question 2
Calculate the pH of a 0.01 M HCl solution.
Question 3
Using the Henderson–Hasselbalch equation ($\mathrm{pH}=\mathrm{p}K_a+\log[\mathrm{A}^-]/[\mathrm{HA}]$), what is the pH of a buffer with 0.1 M acetic acid (pKa 4.76) and 0.1 M sodium acetate?
Question 4
In an acetic acid buffer where pKa = 4.76, if the pH is 5.76, what is the ratio $[\mathrm{A}^-]/[\mathrm{HA}]$?
Question 5
Which buffer system is the primary regulator of blood pH in humans?