Acid–Base Equilibria Quiz

In the forward reaction of this equilibrium, which substance acts as the Brønsted–Lowry base?

• H5O2+

• H9O4+

• H2O

• H3O+

If O2- ions are added to water, what reaction, if any, occurs?

• Neutralization

• Oxidation

• Reduction

• Hydrolysis

Given that HClO4 is a strong acid, how would you classify the basicity of ClO4-?

• Weak base

• Strong base

• Acidic

• Neutral

Is it possible for a solution to have a negative pH? If so, would that pH signify a basic or acidic solution?

• Yes, basic

• Yes, acidic

• No, basic

• No, acidic

Which solution has the higher pH, a 0.001 M solution of NaOH or a 0.001 M solution of Ba(OH)2?

• Both have the same pH

• Cannot be determined

• Ba(OH)2

• NaOH

An Arrhenius ____ is a substance that, when dissolved in water, increases the concentration of H + ions.

Which two ions are central to the Arrhenius definitions of acids and bases?

What is 𝐾𝑤 Kw ​ ?

• Is the dissociation constant of weak acid reaction.

• Is the dissociation constant of the Auto Ionization of water. 

• Is the dissociation constant of any equilibrium reaction. 

• Is the dissociation constant of weak base reaction. 

What has a pH level between 0-6?

Answer choices

• Acid

• Base

• Neutral

• Non- of the above

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

• pH = -log[H+]

• pH = [H+]

• pH = log[H+]

• pH = [OH-]