22 club questions Flashcards
(22 cards)
1
Q
sulphate?
A
SO4^2-
2
Q
hydroxide?
A
OH^-
3
Q
nitrate?
A
NO3^-
4
Q
carbonate?
A
CO3^2-
5
Q
hydrochloric acid?
A
HCL
6
Q
nitric acid?
A
HNO3
7
Q
sulphuric acid?
A
H2SO4
8
Q
sodium hydroxide?
A
NaOH
9
Q
ammonia?
A
NH3
10
Q
oxidation is…
A
the loss of electrons
11
Q
reduction is…
A
the gain of electrons
12
Q
atomic number is…
A
number of protons in an element
13
Q
mass number is…
A
number of protons and neutrons in an element
14
Q
moles = (mass and Mr)
A
n = m/Mr
15
Q
concentration =
A
n/v
16
Q
number of particles =
A
Avogadro’s no. x Mr
17
Q
moles = volume/?
A
24dm^3
18
Q
units for mass?
A
g
19
Q
units for concentration?
A
mol/dm^3 or g/dm^3
20
Q
units for volume?
A
dm^3
21
Q
conversion from cm^3 to dm^3?
A
divide by 1000
22
Q
conversion from mol/dm^3 to g/dm^3?
A
x Mr
