A solution with a pH of 2 has how many more protons in it than a solution with a pH of 4?
A) 5 times more
B) 10 times more
C) 100 times more
D) 1000 times more
Consider the following reaction at equilibrium: CO₂ + H₂O H₂CO₃. What would be the effect of adding additional H₂O?
A) It would drive the equilibrium dynamics to the right.
B) It would drive the equilibrium dynamics to the left.
C) Nothing would happen because the reactants and products are in equilibrium.
D) Reactions in both the directions will slow down.
Which of the following is considered to be a strong base (alkali)?
A) HCl → H⁺ + Cl-
B) NH3 + H⁺ ⇔ NH4+
C) H₂CO₃ ⇔ HCO₃- + H⁺
D) NaOH → Na⁺ + OH-
A 0.01 M solution of a substance has a pH of 2. What can you conclude about this substance?
A) It is a strong acid that dissociates completely in water.
B) It is a strong base that dissociates completely in water.
C) It is a weak acid.
D) It is a weak base.