Homework Flashcards
(13 cards)
1
Q
Formulae of hydrochloric acid
A
HCl
2
Q
Formulae of sulphuric acid
A
H2SO4
3
Q
Formulae of nitric acid
A
HNO3
4
Q
Formulae of sodium hydroxide
A
NaOH
5
Q
Strong acid
A
Such as hydrochloric acid, strong acids are completely ionised
6
Q
Weak acid
A
Acids that don’t completely dissociate in solution
7
Q
Strong alkali
A
Nearly or complete ionised in water. Such as sodium hydroxide
8
Q
Weak alkali
A
An alkali that dissociates partially in an aqueous solution
9
Q
Acids
A
1-6 on pH scale
1-3 strong acid
4-6 weak acid
10
Q
Alkali
A
8-14 on the pH scale
8-11 weak alkali
12-14 strong alkali
11
Q
General reaction of acid and base
A
Neutralisation reaction. The products are salt and water
12
Q
pH scale
A
By each increase of 1, the concentration of H+ ions is x10
13
Q
Indicators
A
pH
Litmus
Methyl orange
Phenolphthalein
