Molarity and Dilution

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 the volume of a solution given moles and molarity?

Back

Volume (L) = Moles of solute / Molarity.

Front

What is the formula for dilution?

Back

C1V1 = C2V2, where C1 and V1 are the concentration and volume of the initial solution, and C2 and V2 are the concentration and volume of the diluted solution.

Front

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

Back

The concentration decreases as more solvent is added.

Front

If you have a 1.0 M solution and dilute it to 2.0 L, what is the new concentration if you started with 1.0 L?

Back

The new concentration is 0.5 M.

Front

What is the relationship between moles, molarity, and volume?

Back

Moles = Molarity x Volume.

Front

What is the definition of a stock solution?

Back

A stock solution is a concentrated solution that can be diluted to a lower concentration for actual use.

Front

How do you prepare a dilution from a concentrated solution?

Back

To prepare a dilution, measure a specific volume of the concentrated solution and add solvent to reach the desired final volume.

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 significant figures in molarity calculations?

Back

Significant figures are important in molarity calculations to ensure precision and accuracy in measurements.