Molarity and Dilutions

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 do you calculate molarity?

Back

Molarity = moles of solute / liters of solution.

Front

What is the formula for dilution?

Back

C1V1 = C2V2, where C is concentration and V is volume.

Front

What happens to the molarity of a solution when it is diluted?

Back

The molarity decreases as the volume increases while the amount of solute remains constant.

Front

If you have a 2 M solution and dilute it to 4 L, what is the new molarity?

Back

Molarity = (2 M * 1 L) / 4 L = 0.5 M.

Front

What is the boiling point elevation?

Back

Boiling point elevation is the increase in boiling point of a solvent due to the presence of a solute.

Front

What is the relationship between solute concentration and boiling point?

Back

Higher solute concentration typically results in a higher boiling point.

Front

How do you prepare a diluted solution from a concentrated solution?

Back

Use the dilution formula C1V1 = C2V2 to find the volume of concentrated solution needed.

Front

What is the effect of temperature on molarity?

Back

Molarity can change with temperature because the volume of the solution may expand or contract.

Front

What is the significance of a 1 M solution?

Back

A 1 M solution contains 1 mole of solute in 1 liter of solution, serving as a standard reference.