Molarity

Front

What is Molarity?

Back

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

Front

How is Molarity calculated?

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Molarity = moles of solute / liters of solution.

Front

What is the unit of Molarity?

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Molarity is measured in moles per liter (mol/L).

Front

If you have 2 moles of NaCl in 1 liter of solution, what is the Molarity?

Back

2 M

Front

What happens to Molarity when you dilute a solution?

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Diluting a solution decreases its Molarity.

Front

What is the Molarity of a solution made by dissolving 0.50 moles of NaCl in 400 mL of water?

Back

1.25 M

Front

What is the Molarity of 186.55 g of sucrose in 250 mL of water?

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2.18 M

Front

What is a dilution in terms of Molarity?

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A dilution is when water is added to a stock solution, decreasing its Molarity.

Front

What is the Molarity of a solution if 3 moles of solute are dissolved in 2 liters of solution?

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1.5 M

Front

If you have a 3M solution and you dilute it to 6 liters, what is the new Molarity?

Back

1.5 M