Unit 8 Solutions

Front

What allows water to make salt dissociate instead of just dissolving it?

Back

Water's polarity allows it to interact with the ions in salt, causing them to separate.

Front

What term describes ionic substances that form crystals with water molecules?

Back

Hydrates

Front

How many grams of BaCl2 are needed to prepare a 1.20 molal solution in 675 g of water?

Back

56.7 grams

Front

What effect does increasing the surface area of a solute have on its solubility?

Back

It increases the solubility of the substance.

Front

What is a mixture in which particles settle out over time called?

Back

Suspension

Front

Define 'electrolyte'.

Back

A substance that dissociates into ions in solution and conducts electricity.

Front

What is the difference between a solution and a colloid?

Back

A solution is a homogeneous mixture where particles are completely dissolved, while a colloid has larger particles that do not settle out.

Front

What is the role of temperature in the solubility of solids in liquids?

Back

Generally, increasing temperature increases the solubility of solids in liquids.

Front

What is a saturated solution?

Back

A solution that has reached the maximum concentration of solute that can be dissolved at a given temperature.

Front

What is the definition of 'suspension'?

Back

A heterogeneous mixture in which solute-like particles settle out of a solvent-like phase over time.