Chemistry Test #6

Question 1

Solute

Answer 1

substance present in lesser amounts in the solution

Question 2

Solvent

Answer 2

substance present in great amounts in the solution, typically water

Question 3

Solution

Answer 3

homogeneous mixture of two or more unequal substances, dissolved in water

Question 4

Solubility

Answer 4

Amount of a substance that dissolves in a given volume at a given temperature.

Question 5

Miscible

Answer 5

Two liquids can form to make a homogeneous mixture. All mixtures involving two or more gases form miscible solutions (ethyl alcohol in water)

Question 6

Immiscible

Answer 6

Two liquids cannot mix to create a homogeneous solution.

Question 7

Solubility of Ionic Substances in Water

Answer 7

Breaks apart ions, “like dissolves like,” a solvent will generally dissolve a solute that has a polarity similar to their own

Question 8

Saturated Solutions

Answer 8

Contains max amt of solute that can dissolve at a given temp/pressure. In a dynamic equilibrium with excess solute.

Question 9

Unsaturated Solutions

Answer 9

Additional solute can be added until saturation is reached

Question 10

Supersaturated Solutions

Answer 10

Unstable, contained more dissolved. if more is added, or its vibrated, it will precipitate

Question 11

Temperatures affect

Answer 11

Solids dissolve more rapidly in liquids at higher temperatures

Question 12

Surface Areas affect

Answer 12

the greater amount of surface exposed to the solvent, the faster the dissolving occurs

Question 13

Stirring affect

Answer 13

Stirring removes newly dissolved particles from the solid surface and continuously exposes the surface to fresh solvent

Question 14

As temp increases, what happens to the solubility of a gas in a liquid

Answer 14

typically decreases

Question 15

pressure makes gases…

Answer 15

more soluble bc it forces gas into liquid.

Question 16

The freezing and boiling point of water at 1 atm is affected by

Answer 16

the # of particles in a solution. The greater the number of particles, the lower the freezing point &

Question 17

boiling point increases

Answer 17

with more IONIC particles in the solution

Question 18

Solutions containing a base, acid, or solution are

Answer 18

electrolytes

Question 19

grams to moles

Answer 19

6.0210^23