2.1.4 Acids

Question 1

give the formulae of the acids
hydrochloric acid
sulphuric acid
nitric acid
ethanoic acid
2.1.4(a)

Answer 1

HCL
H2SO4
HNO3
CH3COOH

Question 2

what are acids
2.1.4(a)

Answer 2

release h+ ions in water
proton donors

Question 3

give the formulae of these alkalis
sodium hydroxide
potassium hydroxide
Ammonia
2.1.4(a)

Answer 3

NaOH
KOH
NH3

Question 4

what is an alkali
2.1.4(a)

Answer 4

release OH- ions in water
proton accepters

Question 5

what is a strong acid
2.1.4(b)

Answer 5

the forward reaction is favoured
nearly all the acid will dissociate/ionise
lots of h+ ions will be released
(similar to strong bases)

Question 6

what is a weak acid
2.1.4(b)

Answer 6

the backword reaction is favoured
some of the acid will dissociate/ionise
a few h+ ions are released
(similar to weak bases replace h+ with oh-)

Question 7

ionic equation for neutralisation
2.1.4 (ci)

Answer 7

H+ + OH-= H2O

Question 8

what is an acid + metal oxide
2.1.4(cii)

Answer 8

salt + water

Question 9

what is acid + metal carbonate
2.1.4(cii)

Answer 9

salt + water + carbon dioxide

Question 10

what is acid + metal

Answer 10

acid + metal gives salt and hydrogen

Question 11

what is acid + alkali
2.1.4(cii)

Answer 11

salt + water

Question 12

How to carry out an acid-base titration
2.1.3(d)

Question 13

How to prepare a standard solution
2.1.4(d)

Question 14

examples of bases

Answer 14

metal oxides
metal hydroxides
ammonia