Strong Acids and weak acids/bases

Question 1

hydrochloric acid

Answer 1

HCl (strong acid)

Question 2

hydrobromic acid

Answer 2

HBr (strong acid)

Question 3

hydroiodic acid

Answer 3

HI (strong acid)

Question 4

nitric acid

Answer 4

HNO3 (strong acid)

Question 5

sulfuric acid

Answer 5

H2SO4 (strong acid)

Question 6

perchloric acid

Answer 6

HClO4 (strong acid)

Question 7

weak acid recognition

Answer 7

1. name contains the word “acid” but is not in list of strong acids
2. balanced chemical equation in which it loses a proton
3. covalent compound lewis structure
4. include very polar bonds ex. O-H

Question 8

weak base recognition

Answer 8

undergo partial hydrolysis w/ water (they do not ionize completely) to form OH-

Question 9

acid or base depending on situation

Answer 9

amphoteric

Question 10

can either accept or donate a proton

Answer 10

amphiprotic

Question 11

NH3

Answer 11

weak base

Question 12

N(CH3)3

Answer 12

weak base (trimethylamine)

Question 13

CH3COOH

Answer 13

weak acid (acetic acid)
its conguate base is acetate CH3COO-

Question 14

CH2O4

Answer 14

weak acid (oxalic acid)

Question 15

H3O+

Answer 15

strong acid (hydronium ion)

Question 16

high Ka value indicates

Answer 16

a strong acid

Question 17

low Ka value indicates

Answer 17

a weak acid

Question 18

high Kb value indicates

Answer 18

a strong base

Question 19

low Kb value indicates

Answer 19

a weak base

Question 20

high pKa indicates

Answer 20

a weak acid (higher pH)