Molarity & Molality Bonus

Front

What are the units of molality?

Back

m (mol/kg of solvent)

Front

What are the elements present in sodium hydroxide?

Back

Sodium, oxygen, and hydrogen.

Front

How do you calculate molality?

Back

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

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

How many moles of NaCl are present in a solution with a molarity of 8.59 M and a volume of 125 mL?

Back

1.07 mol.

Front

What is the definition of molarity?

Back

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

Front

What is the difference between molarity and molality?

Back

Molarity is moles of solute per liter of solution; molality is moles of solute per kg of solvent.

Front

What does it mean for a solution to be unsaturated?

Back

A solution that has a small amount of solute compared to the solvent.

Front

What is the formula to convert grams of solute to moles?

Back

Moles = grams / molar mass.

Front

What is the molarity of a solution with 2 moles of solute in 1 liter of solution?

Back

2 M.