Question 1
What ions are produced when water undergoes ionization?
Question 2
What is the pH at the midpoint of a titration of a weak acid with a strong base?
Question 3
At what pH do most biological fluids operate?
Question 4
What is the effective pH range for a buffer whose acid has a pKa of 4.76?
Question 5
In the Henderson-Hasselbalch equation, what does the term 'log([A⁻]/[HA])' represent?
Question 6
How many ionizable hydrogens does a polyprotic acid have?
Question 7
Which enzyme operates at an optimal pH around 2?
Question 8
How is pH calculated?
Question 9
What is the correct expression for the acid dissociation constant, Ka?
Question 10
What is the ion product constant for water (K_W) at 25°C?
Question 11
Which of the following is true about buffers?
Question 12
What does a high pKa value indicate about an acid?
Question 13
In glycine, which group deprotonates first upon increasing pH?
Question 14
What is a zwitterion?
Question 15
How is the isoelectric point (pI) of an amino acid determined?