Memorize for Exam 4

Question 1

Wavelength and Frequency Relationship Equation

Answer 1

λ = c/v

Question 2

Energy equation with frequency

Answer 2

E = hv

Question 3

Energy equation with wavelength

Answer 3

E = hc/λ

Question 4

Atomic Radius Trend

Answer 4

↓: increases
→: decreases

Question 5

Ionization Energy Trend

Answer 5

↓: decreases
→: increases

Question 6

Electronegativity Trend

Answer 6

↓: decreases
→: increases

Question 7

Molarity (M)

Answer 7

M = mol solute/L solution

Question 8

w/w % solution

Answer 8

for 5% → 5g/100g

Question 9

v/v % solution

Answer 9

for 5% → 5mL/100mL

Question 10

w/v % solution

Answer 10

for 5% → 5g/100mL

Question 11

Parts per million (ppm)

Answer 11

ppm = mass solute/mass solution x 10^6

Question 12

Molality (m)

Answer 12

m = mol solute/kg solvent

Question 13

Mass Percent %

Answer 13

mass solute/mass solution x 100

Question 14

Henry’s Law

Answer 14

C(g) = k x P(g)
C(g) - concentration/solubility
k - Henry’s law constant
P(g) - Partial Pressure

Question 15

Freezing Point Depression

Answer 15

∆Tf = kf x m
∆Tf - change in freezing point temp
kf - freezing point depression constant
m - molality

Question 16

Boiling Point Elevation

Answer 16

∆Tb = kb x m
∆Tb - change in boiling point temp
kb - boiling point elevation constant
m - molality

Question 17

Raoult’s Law

Answer 17

Psolution = Xsolvent x P°solvent
Psolution - vapor pressure of solution
Xsolvent - mole fraction of solvent
P°solvent vapor pressure of pure solvent