Dilution

Front

What is dilution in chemistry?

Back

Dilution is the process of reducing the concentration of a solute in a solution, usually by adding more solvent.

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 molarity of a solution?

Back

Molarity = moles of solute / liters of solution.

Front

What is the formula for dilution?

Back

M1V1 = M2V2, where M1 and V1 are the molarity and volume of the initial solution, and M2 and V2 are the molarity and volume of the diluted solution.

Front

If 50.0 mL of a 0.78 M solution is diluted to 90.0 mL, what is the ending molarity?

Back

0.43 M.

Front

What happens to the molarity when a solution is diluted?

Back

The molarity decreases as the volume of the solution increases.

Front

What is the molarity of a solution made by diluting 26.5 mL of 6.00M HNO3 to a volume of 250 mL?

Back

0.636 M.

Front

If 30.0 mL of a solution that has a 1.82 M is diluted to 1.14 M, what is the volume of the ending solution?

Back

47.9 mL.

Front

How do chemists describe the 'strength' or concentration of a solution?

Back

Molarity.

Front

Calculate the molarity of a solution: 400.0 g of CuSO4 (molar mass = 159.60 g/mol) in 4.00 L solution.

Back

0.627 M.