Chapter 2 Practice Question and
answers correctly solved 2025
I need to calculate the pH of a weak acid. I know the concentration of the acid
and its conjugate base, and my solution is at 30°C. What else do I need? -
correct answer ✔The pKa of the acid (pH=pKa + log [A-]/[HA])
What is the pH of a 0.1 mM solution of hydrochloric acid at 37°C? - correct
answer ✔4 (-log [M] = pH)
Adding table sugar to iced tea and stirring it results in which of the following? -
correct answer ✔An increase in entropy as sugar dissolves
What two weak interactions are most important in the formation of a cluster of
lipid molecules in an aqueous solution? - correct answer ✔Hydrogen &
Hydrophibic
In what area of the titration curve for carbonic acid (H2CO3) is the molecule
fully deprotonated? - correct answer ✔Far right
Which of the following atoms does not commonly form hydrogen bonds
between or within biological molecules? - correct answer ✔Carbon
Which of the following conditions would cause red blood cells to burst due to
excess water passing through the plasma membrane? - correct answer
✔Placing them in a hypotonic solution
Water dissociation can be represented by an equilibrium expression. What
term from that expression is missing from the ion product of water? - correct
answer ✔The concentration of water
answers correctly solved 2025
I need to calculate the pH of a weak acid. I know the concentration of the acid
and its conjugate base, and my solution is at 30°C. What else do I need? -
correct answer ✔The pKa of the acid (pH=pKa + log [A-]/[HA])
What is the pH of a 0.1 mM solution of hydrochloric acid at 37°C? - correct
answer ✔4 (-log [M] = pH)
Adding table sugar to iced tea and stirring it results in which of the following? -
correct answer ✔An increase in entropy as sugar dissolves
What two weak interactions are most important in the formation of a cluster of
lipid molecules in an aqueous solution? - correct answer ✔Hydrogen &
Hydrophibic
In what area of the titration curve for carbonic acid (H2CO3) is the molecule
fully deprotonated? - correct answer ✔Far right
Which of the following atoms does not commonly form hydrogen bonds
between or within biological molecules? - correct answer ✔Carbon
Which of the following conditions would cause red blood cells to burst due to
excess water passing through the plasma membrane? - correct answer
✔Placing them in a hypotonic solution
Water dissociation can be represented by an equilibrium expression. What
term from that expression is missing from the ion product of water? - correct
answer ✔The concentration of water
