Definitions

Question 1

Acid

Answer 1

a substance that releases H+ ions when dissolved in water

Question 2

Base

Answer 2

a substance that releases OH- ions when dissolved in water
a substance that reacts with an acid to give a salt and water only
all metal oxides and hydroxides are bases

Question 3

alkali

Answer 3

soluble base

Question 4

Dissociation

Answer 4

splitting of a soluble substance in water into ions, which are now free to move about in the solution

Question 5

strength of acid or base

Answer 5

the extent to which an acid or base dissociates in water

Question 6

electrolytes

Answer 6

a substance that conducts an electrical current as a result of its dissociation into ions when dissolved in a solvent such as water.
Freely moving ions act as mobile charge carriers that can conduct electricity.

Question 7

strong electrolytes

Answer 7

strong acids or bases
completely dissociates in water and contains only ions
good conductors of electricity

Question 8

strong acids

Answer 8

an acid that dissociates/ionises completely to form hydrogen ions, H+.

Question 9

weak acids

Answer 9

an acid that dissociates/ionises partially in water to form hydrogen ions, H+.

Question 10

concentration

Answer 10

the amount of substance dissolved in a fixed volume of solution

Question 11

monobasic dibasic tribasic

Answer 11

monobasic eg. hydrochloric acid– produce 1 H+ ion when it dissociates with water
dibasic eg. sulfuric acid– produces 2H+ ions when it dissociates with water
tribasic eg. phosphoric acid– produces 3H+ ions when it dissociates with water