5:Acids, Bases And Salts

Question 1

Definition of an Acid

Answer 1

A compound that releases H† ions in aqueous solution

Proton donor

Question 2

Definition of a Base

Answer 2

Proton acceptor

Question 3

What is an alkali

Answer 3

A water soluble base

Release OH¯ ions in aqueous solution.

Question 4

Show how ammonia acts as a base

Answer 4

It accepts H† to form ammonium

NH3 (aq) + H2O (l) ⇌ NH4† (aq) + OH‾ (aq)

Question 5

Definition of a salt

Answer 5

A compound formed when the H† ion from an acid is replaced by a metal ion or an ammonium ion

Question 6

What are the products for an Acid + Metal Oxide

Answer 6

Salt + water

Question 7

What are the products for an Acid + Alkalis (Just hydroxides)

Answer 7

Salt + water

Question 8

What are the products for an Acid + Carbonate

Answer 8

Salt + water + carbon dioxide

Question 9

What are the products for an Acid + Ammonia

Answer 9

Ammonium salt

Question 10

What are the products for an Acid + Metal

Answer 10

Salt + hydrogen

Question 11

What is a strong acid

Answer 11

An acid that ionises completely in aqueous solution

Question 12

What is a weak acid

Answer 12

An acid that is only partially ionised in aqueous solution

Question 13

Example of strong acid

Answer 13

Hydrochloric acid
Nitric acids
Sulphuric acid

Question 14

Example of weak acids

Answer 14

Ethanoic acid
Phosphoric acid
Acetic acid