Solutions Flashcard Review

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 from moles and molarity?

Back

Volume (L) = Moles of solute / Molarity (M).

Front

What is the molarity of a solution containing 0.5 moles of NaCl in 2 liters of solution?

Back

0.25 M (Molarity = 0.5 moles / 2 L).

Front

What does it mean for a solution to be saturated?

Back

A saturated solution is one that contains the maximum amount of solute that can dissolve at a given temperature.

Front

What is the difference between a homogeneous and heterogeneous mixture?

Back

A homogeneous mixture has a uniform composition throughout, while a heterogeneous mixture has visibly distinguishable components.

Front

What is the formula to find moles from molarity and volume?

Back

Moles = Molarity (M) x Volume (L).

Front

What is an insoluble substance?

Back

An insoluble substance is one that does not dissolve in a solvent.

Front

How many moles are in 3.0 L of a 2.0 M solution?

Back

6.0 moles (Moles = 2.0 M x 3.0 L).

Front

What is the definition of a solution?

Back

A solution is a homogeneous mixture composed of two or more substances.

Front

What is the significance of the term 'dilute' in chemistry?

Back

A dilute solution has a low concentration of solute compared to solvent.