Molarity

Front

What is molarity?

Back

Molarity is a measure of concentration defined as the number of moles of solute per liter of solution (mol/L).

Front

What is the unit of molarity?

Back

The unit of molarity is moles per liter (mol/L).

Front

What does a supersaturated solution mean?

Back

A supersaturated solution contains more solute than can normally dissolve at a given temperature and pressure.

Front

How do you calculate molarity?

Back

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

Front

If you have 3 moles of hydrochloric acid in 3 L of water, what is the molarity?

Back

1 M (Molarity = 3 moles / 3 L).

Front

How many moles are in 0.045 L of 0.465 M potassium bromide?

Back

0.0209 moles (Moles = Molarity x Volume = 0.465 M x 0.045 L).

Front

What is the molarity of a solution containing 63 grams of sodium chloride in 650 mL?

Back

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

Front

What is the formula to convert grams to moles?

Back

Moles = grams / molar mass.

Front

What is the molar mass of sodium chloride (NaCl)?

Back

The molar mass of sodium chloride is approximately 58.44 g/mol.

Front

What is an unsaturated solution?

Back

An unsaturated solution is one that can still dissolve more solute at a given temperature and pressure.