1. lemon juice is a weak acid. it has a [h+] of 5.0 × 10^-2 m. what is the ph of lemon juice?
a. 1.0
b. 1.3
c. 5.0
d. 7.5 2. water can act as both an acid and a base in an ionization reaction to form h+ and oh- ions. what is this phenomenon called?
a. neutralization
b. acid dissociation
c. base dissociation
d. self-ionization 3. a solution of vinegar and water has a ph of 6.2. what type of solution is this?
a. acidic
b. basic
c. neutral 4. hydrochloric acid (hcl) and acetic acid (hc2h3o2) are both acids. hcl completely dissociates in water, while hc2h3o2 does not. which of the following statements best describes these two acids?
a. hcl is a strong acid; hc2h3o2 is a strong acid.
b. hcl is a weak acid; hc2h3o2 is a weak acid.
c. hcl is a strong acid; hc2h3o2 is a weak acid.
d. hcl is a weak acid; hc2h3o2 is a strong acid.
5. pyridine is a weak base with the formula c5h5n. pyridine reacts with water according to the following equation: c5h5n + h2o > c5h5nh+ + oh-. what is the formula for the dissociation constant for this base?
a. kb = [oh-][c5h5nh+]/[c5h5n]
b. kb = [h+][co2h-]/[c5h5n]
c. kb = [c5h5n]/[oh-][co2h-]
d. kb = [c5h5n][co2h-]/[oh-]