Chemistry Lab Assignment

Review of acids/bases and acid-base neutralization: https://www.youtube.com/watch?v=n9wUdgxCLMQ

1. What species is the conjugate acid of HCO3–?
2. Which species is the conjugate base of HPO42–?

Refresher of Acid/Base Equilibria, Ka, and pKa, and buffer solutions: https://www.youtube.com/watch?v=jdmHjFp_35I

1. The [H3O+] in a cabernet sauvignon wine is 5.9 × 10–4 M. What is the [–OH] in this wine?
2. The pH of a lime is 1.90. What is the [H3O+]?
3. What is the pH of a cleaning solution with a [H3O+] = 7.4 × 10–9 M H3O+?
4. Normal gastric juice has a pH of about 2. Assuming that normal gastric juice is primarily aqueous HCl, what is the concentration of HCl in the

stomach?

5. The Ka of acetic acid is 1.7 × 10-5. What is the pKa of acetic acid?
6. The of formic acid is pKa 3.750. What is the Ka of formic acid?

Sample Solution