medium · MCAT chem-phys
A laboratory technician needs to prepare a buffer at pH 5.0.
Which of the following weak acids would be the most effective choice as the starting material?
- Acetic acid (pK_a = 4.76)
- Ammonium ion (pK_a = 9.25)
- Nitrous acid (pK_a = 3.30)
- Propanoic acid (pK_a = 4.87)
Sign up free to see the explanation and track your rank →
More MCAT chem-phys practice
- Which term describes the final state where no net heat flow occurs?
- What term describes the molecule with internal symmetry despite having chiral centers?
- An infrared (IR) spectrum of an unknown organic compound sho… — Which functional group is
- What is the molecular mechanism by which the catalyst achieves this increase?
- Which mechanism is occurring?
- A researcher discovers that a population of bacteria survives exposure to an antibiotic be
- According to the Critical Analysis and Reasoning Skills (CARS) methodology, which test sho
- Which reactant is the limiting reagent?