Same topic3 marksDifficulty: Medium
Calculate the volume occupied by 8 g of oxygen gas at STP. (O = 16, molar volume = 22.4 dm3)
Mole Concept and Stoichiometry
2 marksDifficulty: Easy
Calculate the number of moles in 44 g of carbon dioxide. (C = 12, O = 16)
Original Khojo Papers practice question — not from a past board paper.
Answer
1 mole
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
The relative molecular mass of CO2 is 12 + 2 × 16 = 44, so 44 g is 44 ÷ 44 = 1 mole.
Related questions
From the same topic and chapter, at a similar level.
Same chapter2 marksDifficulty: Easy
Calculate the number of moles in 88 g of carbon dioxide. (C = 12, O = 16)
Mole Concept and Stoichiometry
Same chapter1 markDifficulty: Easy
The volume occupied by one mole of any gas at S.T.P. is:
Mole Concept and Stoichiometry
Same chapter2 marksDifficulty: Easy
Calculate the percentage of nitrogen in ammonium nitrate, NH4NO3. (N = 14, H = 1, O = 16)
Mole Concept and Stoichiometry
Same chapter3 marksDifficulty: Medium
Calculate the volume occupied by 0.5 mole of any gas at S.T.P.
Mole Concept and Stoichiometry
Same chapter3 marksDifficulty: Medium
Calculate the number of molecules in 8 g of oxygen gas. (O = 16, Avogadro number = 6.022 × 1023)
Mole Concept and Stoichiometry