All High School Chemistry Resources
Example Questions
Example Question #1 : Help With Acid Base Reactions
What volume of a 1.2M solution of hydrochloric acid is needed to neutralize 50mL of a 3M sodium hydroxide solution?
The equation to use here is:
Here, is the molarity of the acid, is the volume of the acid, is the molarity of the base, and is the volume of the base. Don't forget to convert the volume to liters!
Example Question #2 : Help With Acid Base Reactions
What kind of reaction is an acid-base neutralization reaction?
Decomposition
Double-replacement
Single-replacement
Addition (synthesis)
Oxidation-reduction
Double-replacement
Below is a generic acid-base neutralization reaction:
The products are always water, and a salt. This salt is produced from the resulting ions and . The from the acid replaces the from the base, and the from the acid replaces the from the base. Since there are two replacements, acid-base neutralizations are classified as double-replacement reactions.
Example Question #2 : Help With Acid Base Reactions
Which of the following is the definition for an Arrhenius acid?
A proton donor
A substance that increases the concentration when added to water
A substance that increases the concentration when added to water.
A proton acceptor
None of these
A substance that increases the concentration when added to water
Arrhenius acid/base theory was created by Swedish chemist Svante Arrhenius, and is the oldest acid/base classification. According to his classification, acids are compounds that increase the concentration of ions in a solution, while bases are compounds or elements that either decrease the concentration of ions in solution or increase the concentration of ions in a solution. The other two answers describe the Brønsted–Lowry theory of acids and bases.