1140 Exam 2

Question 1

degree of ionization

Answer 1

how much is left/how much started with

Question 2

A higher Ka means the acid is

Answer 2

stronger

Question 3

make the assumption if Ca/Ka is . . .

Answer 3

over 100

Question 3

Ca/Ka

Answer 3

concentration of acid/Ka

Question 4

6 strong acids

Answer 4

Perchloric acid (HClO4)
Hydrochloric acid (HCl)
Hydrobromic acid (HBr)
Hydroiodic acid (HI)
Nitric acid (HNO3)
Sulfuric acid (H2SO4)

Question 4

6 strong bases

Answer 4

Lithium Hydroxide (LiOH)
Sodium Hydroxide (NaOH)
Potassium Hydroxide (KOH)
Calcium Hydroxide (Ca(OH)2)
Strontium Hydroxide (Sr(OH)2)
Barium Hydroxide (Ba(OH)2)

Question 5

Henderson-Hasselbach Equation

Answer 5

pH = pKa + log(A-/HA)

Question 6

acid strength increases as atomic size _________

Answer 6

increases

Question 7

acid strength increases as bond polarity _______

Answer 7

increases

Question 8

acid strength increases as number of oxygens __________

Answer 8

increases

Question 9

T/F: polyprotic acids decrease in strength as H’s decrease

Answer 9

true