State Gay-Lussac's law of combining volumes and Avogadro's law.
Mole Concept and Stoichiometry
Original Khojo Papers practice question — not from a past board paper.
22
No citable source has been recorded for this record. Treat it as practice material, not as fact.
The vapour density is half the relative molecular mass, that is 44 ÷ 2 = 22.
From the same topic and chapter, at a similar level.
State Gay-Lussac's law of combining volumes and Avogadro's law.
Mole Concept and Stoichiometry
Calculate the mass of 2.24 dm3 of carbon dioxide at S.T.P. (C = 12, O = 16)
Mole Concept and Stoichiometry
Calculate the volume occupied by 0.5 mole of any gas at S.T.P.
Mole Concept and Stoichiometry
Calculate the number of molecules in 8 g of oxygen gas. (O = 16, Avogadro number = 6.022 × 1023)
Mole Concept and Stoichiometry
The number of moles in 36 g of water is: (H = 1, O = 16)
Mole Concept and Stoichiometry
Calculate the number of atoms in 0.5 mole of sulphur dioxide molecules.
Mole Concept and Stoichiometry