Unit 6 - Acid-Base Equilibria

Question 1

Acids produce H3O+ / H+ ions in aqueous solution; bases produce OH– ions.

Answer 1

Arrhenius

Question 2

A substance that produces H+ (H3O+) in water.

Answer 2

Arrhenius acid

Question 3

A substance that produces OH- in water.

Answer 3

Arrhenius base

Question 4

Acids are proton (H+) donors; bases are proton acceptors.

Answer 4

Brownsted-Lowry

Question 5

Acid is proton donor.

Answer 5

BL Acid

Question 6

Base is a proton acceptor.

Answer 6

BL Base

Question 7

Acids are electron pair acceptors; bases are electron pair donors.

Answer 7

Lewis

Question 8

Electron pair acceptor.

Answer 8

Lewis acid

Question 9

Electron pair donor.

Answer 9

Lewis base

Question 10

Substances that can function as either an ACID or a BASE.

Answer 10

Amphoteric

Question 11

Substance that can both DONATE and ACCEPT proton, thus acting either like an ACID or BASE according to Bronsted-Lowry Theory.

Answer 11

Amphiprotic

Question 12

T/F
Acids are classified a monoprotic, diprotic, or triprotic
depending on the number of protons each may give up.

Answer 12

T

Question 13

T/F
Not all hydrogen atoms in most compounds can be given up.

Answer 13

T

Question 14

_____ everything that REMAINS of the ACID molecule after a proton is lost.

Answer 14

Conjugate base

Question 15

_____ is formed when the proton is transferred to the base.

Answer 15

Conjugate acid

Question 16

One of the most important amphiprotic substances.

Answer 16

H2O

Question 17

Pure H2O contains a very small number of H3O+ and OH- formed by proton transfer from one H2O molecule (the proton donor) to another the proton acceptor); this process is called _____.

Answer 17

Auto-ionization

Question 18

The equilibrium constant for the ionization of water, _____, is called the ion product of water.

Answer 18

Kw

Question 19

Value of Kw.

Answer 19

1.0 x 10^-14