Solutions

Question 1

Molarity (M)

Answer 1

Moles of solute/Liters of solution

Question 2

Molality (m)

Answer 2

Moles of solute/ kg of solvent

Question 3

Mass percent: (w/w)%

Answer 3

(Grams of solute/grams of solution) x 100

Question 4

Mass Percent: (w/v)%

Answer 4

(Grams of solute/mL of solution) x 100

Question 5

Mass Percent: (v/v)%

Answer 5

(mL of solute/mL solution) x 100

Question 6

Mole Fraction

Answer 6

Moles A/ total moles

Question 7

Colligative Properties Definition

Answer 7

Properties that depend only on the number of solute particles present, not on the identity of the solute particles

Question 8

Colligative Properties Examples

Answer 8

Vapor pressure depression
Boiling point elevation
Melting point depression
Osmotic pressure

Question 9

Adding a solute to a liquid will ____ vapor pressure of the solvent.

Answer 9

Decrease

Question 10

Raoult’s Law (Vapor Pressure)

Answer 10

VPsolution = Xsolvent x VPpure solvent

Question 11

Mole Fraction for a Solvent

Answer 11

moles of solvent/total moles of solution

Question 12

How is vapor pressure related to boiling point

Answer 12

As vapor pressure decreases, boiling point increases

Question 13

Van’t Hoff Factor

Answer 13

Covalent molecules: 1
Ionic compounds: number of ions

Question 14

Boiling Point Elevation

Answer 14

TBsolution-TBsolvent = iKbm

Question 15

Freezing Point Depression

Answer 15

Tfsolvent-Tfsolution = iKfm

Question 16

Adding a solute will ___ the freezing point

Answer 16

Decrease