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WorksheetsRelative Mass and the Mole
Total questions: 15
Worksheet time: 15mins
What is the molar mass of CO2?
12
16
32
44
Calculate the molar mass of Ba(C2H3O2)2
255.3 g/mol
237.3 g/mol
228.3 g/mol
196.3 g/mol
What is the relative formula mass of ammonium nitrate, NH4NO3 ?
[Relative atomic mass: N, 14; H, 1; O, 16]
76
79
80
90
What is the mass of one mole of aluminum?
27 g
13 g
54 g
14 g
What is the symbol used for the formula mass?
Mr
Fm
Ar
Nm
The mass of one mole of a substance is called...
molecular mass
mole constant
molar mass
atomic weight
What is the mass of one mole of aluminum chloride?
62.5g
116.4g
133.3g
98g
Carbon dioxide gas and water vapour have molar masses of 44 g/mol and 18 g/mol respectively. Which statement(s) about these gases is/are correct?
At the same temperature and pressure, they occupy the same volume
At the same temperature and pressure, they occupy different volumes
Samples of equal volumes of each gas would contain different no.s of moles of each gas
Samples of equal volumes of each gas would contain the same no.s of moles of each gas
What is the total mass of a 0.75 mole sample of SO2?
16 g
24 g
32 g
48 g
Calculate the number of moles of sodium hydroxide in 25cm3 of a 80 g/dm3 solution.
0.050 mol
0.10 mol
0.50 mol
0.010 mol
Which option shows the correct working steps to determine the number of moles in a 12 dm3 sample of Cl2 gas at r.t.p?
(12/35.5) moles
(12/71) moles
(12/24) moles
(12 x 71) moles
the SI base unit used to measure the amount of a substance
molar mass
mole
hydrate
percent composition
What is the relative atomic mass of carbon?
12
14
16
18
How many moles are in 88 grams of carbon dioxide (CO_2)?
1 mol
2 mol
3 mol
4 mol
Which of the following statements is true about the mole concept?
A mole of any substance contains Avogadro's number of particles.
A mole of a substance is always 1 gram.
A mole of a substance is the same as its atomic number.
A mole of a substance is the same as its density.
