CHM101 T3 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

How do you calculate molarity?

Back

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

Front

What is the molarity of a solution containing 2 moles of solute in 4 liters of solution?

Back

0.5 M

Front

If you have 1.5 moles of NaCl in 3 liters of solution, what is the molarity?

Back

0.5 M

Front

What is the molarity of 0.5 moles of KCl in 2 liters of solution?

Back

0.25 M

Front

How many moles are in 2.5 L of a 1.5 M solution?

Back

3.75 moles

Front

What is the molarity of 5 grams of NaCl in 500 mL of solution? (NaCl = 58.44 g/mol)

Back

0.171 M

Front

How many liters of a 2 M solution are needed to obtain 4 moles of solute?

Back

2 L

Front

What is the molarity of 10 grams of HCl in 1 L of solution? (HCl = 36.46 g/mol)

Back

0.274 M

Front

If you dilute a 3 M solution to 1 L, what is the new molarity if you add 1 L of water?

Back

1.5 M