SPS6. Solutions, Acids, and Bases

Front

What is a solute?

Back

A solute is the substance that is being dissolved in a solution.

Front

What is a solvent?

Back

A solvent is the substance that dissolves the solute, typically present in a greater amount.

Front

What is concentration in a solution?

Back

Concentration refers to the amount of solute present in a given amount of solvent.

Front

How does surface area affect the rate of dissolution?

Back

Larger surface area increases the rate at which solutes dissolve in a solvent.

Front

What happens to the rate of dissolution when you heat a solvent?

Back

Heating a solvent generally increases the rate at which solutes dissolve.

Front

What is the pH scale?

Back

The pH scale measures how acidic or basic a solution is, ranging from 0 (acidic) to 14 (basic), with 7 being neutral.

Front

What is an acid?

Back

An acid is a substance that donates protons (H+) in a solution and has a pH less than 7.

Front

What is a base?

Back

A base is a substance that accepts protons (H+) or donates hydroxide ions (OH-) in a solution and has a pH greater than 7.

Front

What is neutralization?

Back

Neutralization is a chemical reaction between an acid and a base that produces water and a salt.

Front

What is the best method to increase the rate of dissolving sodium chloride in water?

Back

The best method is to stir and heat the mixture while using small pieces of sodium chloride.