Chapter 12 + 18 - Acids, Bases, pH And Indicators

Question 0

Arhenius theory of a base

Answer 0

A substance that dissolves in water to produce OH- ions

Question 1

Arhenius Theory of an acid

Answer 1

A substance which dissolves in water to produce H+ ions

Question 2

Brønsted Lowry definition of an acid

Answer 2

A proton donor

Question 3

Brønsted lowry definition of a base

Answer 3

A proton acceptor

Question 4

Properties of acids (x3)

Answer 4

Acid and a base form a salt and water
Acids change the colour of indicators and dyes
Have a sour taste

Question 5

Properties of bases (x3)

Answer 5

Bases and acids form salt and water
Bases change the colour of indicators and dyes
Bases are good solvents for oil and grease

Question 6

Everyday uses of acids

Answer 6

Ethanoic acid in vinegar
Citric acid in citrus fruits such as oranges & lemons
Carbonic acid in fizzy drinks

Question 7

Everyday uses of bases

Answer 7

NH3 ammonia solutions - household cleaners

Milk of magnesia has magnesium hydroxide

Question 8

Definition of a strong acid

Answer 8

One which readily donates protons. It is 100% ionised in aqueous solution

Question 9

Definition of a strong base

Answer 9

One which readily accepts protons and is 100% ionised in aqueous solution