Test 4: Solutions Lecture 1

Question 1

Solutions

Answer 1

homogeneous mixtures with particle sizes smaller than 2.0 nm.

Question 2

When particles are larger than 2.0 it creates a homogeneous mixture called a

Answer 2

colloid or suspension

Question 3

Solutions consist of what two parts?

Answer 3

solvent and solute

Question 4

solvolysis

Answer 4

the molecular process by which a solute dissolves in a solvent

Question 5

When the solute is a liquid we differentiate between
the two by determining

Answer 5

which is present in higher quantities

Question 6

Solvolysis occurs if the molecules of the solvent interact __ with the molecules of the solute.

Answer 6

favorably (attraction between molecules, atoms, or ions)

Question 7

With gases inside water, we find that __ are much more soluble than __ones

Answer 7

polar gases; nonpolar

Question 8

generally, compounds become __ with increasing temperature.

Answer 8

more soluble

Question 9

Because molecules have more entropy in the gas phase, heating a solution with dissolved gases
makes them __ because__.

Answer 9

less soluble; they have more energy to escape

Question 10

For solutions of gases in liquid, the best way to increase gas solubility is to

Answer 10

increase the external pressure of that gas.