8th - Flashcard (6.1 & 6.2)

Front

What is the formula to calculate the concentration percentage of a solute in a solution?

Back

Concentration (%) = (mass of solute / mass of solution) x 100

Front

If a solution contains 200g of water and 15g of sugar, what is the concentration percentage of sugar?

Back

7.5%

Front

What happens to the concentration of a solution when more solute is added?

Back

Concentration increases.

Front

What is a solute in a solution?

Back

The substance that is dissolved, e.g., salt in saltwater.

Front

What distinguishes a solution from a suspension?

Back

Solutions have particles that are completely dissolved, while suspensions have larger particles that can settle.

Front

Why is it difficult to separate components of a solution?

Back

Because the solute particles are too small and evenly distributed.

Front

What is a colloid?

Back

A mixture where tiny particles are dispersed but do not settle out, e.g., milk.

Front

What is the difference between a solute and a solvent?

Back

A solute is the substance being dissolved, while a solvent is the substance doing the dissolving.

Front

What is an example of a suspension?

Back

Mud in water.

Front

How can you separate a suspension?

Back

By filtration, as the larger particles can be trapped by a filter.