Solubility and Concentration

Front

What is molarity?

Back

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

Front

Calculate the molarity of a solution containing 1.5 moles of NaCl in 0.5 L of solution.

Back

3 M

Front

At what temperature (in °C) are the solubility of NH3 and NaNO3 the same?

Back

15 °C

Front

What is the maximum amount of a solute that can be dissolved in a given amount of solvent at a given temperature?

Back

Solubility

Front

What is the formula to calculate molarity?

Back

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

Front

If you dilute a solution, what happens to its molarity?

Back

The molarity decreases.

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

How do you calculate the number of moles from grams?

Back

Moles = mass (g) / molar mass (g/mol).

Front

Find the molarity of 186.55 g of sucrose, C12H22O11 (MM = 342) in 250 mL of water.

Back

2.18 M

Front

What is a concentrated solution?

Back

A concentrated solution has a large amount of solute relative to the amount of solvent.