Unit 4 Review

Front

What does 'q' mean?

Back

A change in heat energy.

Front

How does a solution become supersaturated?

Back

Heat the solution to increase the solute then let it cool.

Front

True or False? The higher the concentration of a solution the less solutes it has in it.

Back

False.

Front

What is the chemical name for B2Si?

Back

diboron monosilicide.

Front

Calculate the molarity of the following solution: 1.0 mole of KCl in 750.0 mL of solution.

Back

1.3 M.

Front

What is molarity?

Back

Molarity is a measure of the concentration of a solute in a solution, expressed as moles of solute per liter of solution.

Front

Define supersaturation in a solution.

Back

Supersaturation occurs when a solution contains more solute than it can normally dissolve at a given temperature.

Front

What is the formula for calculating molarity?

Back

Molarity (M) = moles of solute / liters of solution.

Front

What does it mean if a solution is concentrated?

Back

A concentrated solution has a high amount of solute relative to the amount of solvent.

Front

What is the difference between a solute and a solvent?

Back

A solute is the substance that is dissolved, while a solvent is the substance that does the dissolving.