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 molarity?

Back

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

Front

What is the formula for dilution?

Back

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

Front

What is the molar mass of NaCl?

Back

The molar mass of NaCl is approximately 58.45 g/mol.

Front

How many grams of solute are in a 5.00 M NaCl solution in 125.0 mL?

Back

36.5 g NaCl.

Front

If you have 6 mol of Sodium Hydroxide, how many liters of a 1 M solution can you make?

Back

You can make 6 liters of a 1 M solution.

Front

How do you convert mL to L?

Back

To convert mL to L, divide the number of mL by 1000.

Front

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

Back

Moles = Molarity x Volume (in liters).

Front

How many mL of a 2 M NaCl solution are needed to prepare 100 mL of a 0.150 M solution?

Back

7.5 mL.

Front

What is the molarity of 4 g of NaCl in 3,800 mL of solution?

Back

0.018 M.