Advertisements
Advertisements
Question
Find the weight of 0.5 mole of O2.
Advertisements
Solution
Weight of 1 mole of O2 = 16 g × 2 = 32 g
∴ Weight of 0.5 mole = 32 × 0.5 = 16 g
RELATED QUESTIONS
Define the term:
Vapour density
Calculate the percentage of water in ferrous sulphate crystals.
[Fe = 56, S = 32, O =16, H = 1].
Calculate the percentage of nitrogen in aluminium nitride. [Al = 27, N = 14]
Calculate the percentage of sodium in sodium aluminium fluoride (Na3AIF6).
[F = 19, Na = 23, Al = 27]
Calculate the volume of oxygen required for the complete combustion of 8.8 g of propane (C3H5).
(Atomic mass: C = 14, O = 16, H = 1, Molar Volume = 22.4 dm3 at STP.)
Calculate the relative molecular mass of:
CHCl3
What do you understand by the statement that ‘vapour density of carbon dioxide is 22’?
Correct the statement, if required.
Under similar conditions of temperature and pressure, two volumes of hydrogen combined with two volumes of oxygen will give two volumes of water vapour.
If a crop of wheat removes 20 kg of nitrogen per hectare of soil, what mass of the fertilizer, calcium nitrate Ca(NO3)2 would be required to replace the nitrogen in a 10 hectare field?
The following question refers to one mole of chlorine gas.
If the relative atomic mass of chlorine is 35.5, what will be the mass of 1 mole of chlorine gas?
