Ionic Equilibria Quiz

What is the definition of an acid according to Arrhenius?

• A substance that dissociates in water to produce oxygen ions (O2-).

• A substance that does not dissociate in water.

• A substance that dissociates in water to produce hydroxide ions (OH-).

• A substance that dissociates in water to produce hydrogen ions (H+).

What is the definition of a base according to Arrhenius?

• A base is a substance that produces hydroxide ions (OH-) when dissolved in water.

• A base is a substance that produces carbon dioxide (CO2) when dissolved in water.

• A base is a substance that produces oxygen ions (O2-) when dissolved in water.

• A base is a substance that produces hydrogen ions (H+) when dissolved in water.

What is the definition of an acid according to Bronsted-Lowry?

• A substance that accepts a proton (H+) in a chemical reaction.

• A substance that donates an electron in a chemical reaction.

• A substance that releases oxygen in a chemical reaction.

• A substance that donates a proton (H+) in a chemical reaction.

What is the definition of a base according to Bronsted-Lowry?

• A base is a substance that accepts or receives a proton (H+ ion) in a chemical reaction.

• A base is a substance that releases electrons in a chemical reaction.

• A base is a substance that does not participate in a chemical reaction.

• A base is a substance that donates a proton (H+ ion) in a chemical reaction.

What is the relationship between pH and pOH?

• pH / pOH = 14

• pH * pOH = 14

• pH - pOH = 14

• pH + pOH = 14

What is the ionic product of water, Kw, at 25°C?

• 1.0 x 10^-13

• 1.0 x 10^-15

• 1.0 x 10^-14

• 1.0 x 10^-12

What is the formula for calculating pH?

• pH = log[H-]

• pH = [H+]

• pH = -log[H+]

• pH = log[H+]

What is the formula for calculating pOH?

• pOH = log[OH-]

• pOH = -log[H+]

• pOH = log[H+]

• pOH = -log[OH-]

What is the formula for calculating the concentration of H+ ions in a solution?

• pH = -log[H+]

• pH = [OH-]

• pH = [H+]

• pH = log[H+]

What is the formula for calculating the concentration of OH- ions in a solution?

• OH- = [H+]^2

• pOH = -log[OH-]

• pOH = log[OH-]

• OH- = 1/[H+]