Practice Molarity, Molality & Dilution Problems

Front

The units 'M' can also be written as:

Back

mol/L

Front

What is the molality of a solution made by dissolving 2 moles of NaOH in 400 grams of water?

Back

5 mol/kg. solvent

Front

Molarity is measured in _____

Back

mols per L.

Front

Which sweet tea would you expect to taste the sweetest? 1M, 3M, 3.1M, 2.5M

Back

3.1M

Front

The elements present in sodium hydroxide are:

Back

sodium, oxygen and hydrogen

Front

Define molarity.

Back

Molarity is the number of moles of solute per liter of solution.

Front

Define molality.

Back

Molality is the number of moles of solute per kilogram of solvent.

Front

What is the formula for calculating molarity?

Back

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

Front

What is the formula for calculating molality?

Back

Molality (m) = moles of solute / kilograms of solvent.

Front

If you dilute a solution, what happens to its molarity?

Back

The molarity decreases.