Acid-Base Concepts Quiz

What is the result of dissolving an acid in water?

• No change occurs

• Formation of new physical species

• Formation of new biological species

• Formation of new chemical species

What is the fundamental nature of an acid-base interaction in aqueous solutions?

• Dissociation

• Ionization

• Neutralization

• Oxidation

According to the Arrhenius Definition, what does an acid do when dissolved in water?

• Increases the concentration of H3O+

• Increases the concentration of OH-

• Increases the concentration of Cl-

• Increases the concentration of Na+

In the Brønsted-Lowry theory, what do acids do?

• Donate electrons

• Accept protons

• Accept electrons

• Donate protons

What is the main characteristic of a Lewis acid?

• Proton donor

• Proton acceptor

• Electron pair donor

• Electron pair acceptor

How do strong acids and strong bases behave when dissolved in water?

• Dissociate partially

• Ionize nearly completely

• Form new compounds

• Do not react

What is the ion-product constant for water at 25°C?

• 1x10^-14

• 1x10^-10

• 1x10^-7

• 1x10^-4

How is the pH of a weak acid solution calculated?

• Given the initial concentration of the acid and its Ka value

• By calculating the ion-product constant

• By measuring the color change of an indicator

• By adding a strong base to the solution

What is the purpose of a buffer solution?

• Increase the pH of a solution

• Resist a change in pH upon addition of substances

• Neutralize all acids and bases

• Decrease the pH of a solution

How can a buffer solution resist changes in pH?

• By increasing the concentration of water

• By neutralizing any added acid or base

• By changing color in response to pH changes

• By forming new chemical species