Answer available
Class 10 · Chemistry · Mole Concept and Stoichiometry
Calculate the volume occupied by 0.5 mole of any gas at S.T.P.
3 marksMediumNumerical
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18 questions
- Answer available
Class 10 · Chemistry · Mole Concept and Stoichiometry
Equal volumes of all gases at the same temperature and pressure contain equal numbers of molecules. This is:
1 markMediumMCQ
- Answer available
Class 10 · Chemistry · Mole Concept and Stoichiometry
Calculate the number of moles in 88 g of carbon dioxide. (C = 12, O = 16)
2 marksEasyNumerical
- Answer available
Class 10 · Chemistry · Mole Concept and Stoichiometry
Calculate the vapour density of carbon dioxide. (C = 12, O = 16)
3 marksMediumNumerical
- Answer available
Class 10 · Chemistry · Mole Concept and Stoichiometry
The number of moles in 36 g of water is: (H = 1, O = 16)
1 markMediumMCQ
- Answer available
Class 10 · Chemistry · Mole Concept and Stoichiometry
When 6 g of magnesium is burnt in oxygen, what mass of magnesium oxide is formed? (Mg = 24, O = 16)
4 marksHardNumerical
- Answer available
Class 10 · Chemistry · Mole Concept and Stoichiometry
The volume occupied by one mole of any gas at S.T.P. is:
1 markEasyMCQ
- Answer available
Class 10 · Chemistry · Mole Concept and Stoichiometry
Calculate the number of molecules in 8 g of oxygen gas. (O = 16, Avogadro number = 6.022 × 1023)
3 marksMediumNumerical
- Answer available
Class 10 · Chemistry · Mole Concept and Stoichiometry
Calculate the number of atoms in 0.5 mole of sulphur dioxide molecules.
3 marksMediumNumerical
- Answer available
Class 10 · Chemistry · Mole Concept and Stoichiometry
State Gay-Lussac's law of combining volumes and Avogadro's law.
3 marksMediumShort answer
- Answer available
Class 10 · Chemistry · Mole Concept and Stoichiometry
What volume of oxygen at S.T.P. is needed for the complete combustion of 10 dm3 of methane, and what volume of carbon dioxide is formed? All volumes are measured at the same conditions.
4 marksHardNumerical
- Answer available
Class 10 · Chemistry · Mole Concept and Stoichiometry
Calculate the mass of calcium oxide obtained by heating 100 g of pure calcium carbonate. (Ca = 40, C = 12, O = 16)
4 marksHardNumerical
- Answer available
Class 10 · Chemistry · Mole Concept and Stoichiometry
A compound contains 40% carbon, 6.7% hydrogen and 53.3% oxygen by mass. Find its empirical formula. (C = 12, H = 1, O = 16)
4 marksHardNumerical
- Answer available
Class 10 · Chemistry · Mole Concept and Stoichiometry
Calculate the mass of 2.24 dm3 of carbon dioxide at S.T.P. (C = 12, O = 16)
3 marksMediumNumerical
- Answer available
Class 10 · Chemistry · Mole Concept and Stoichiometry
Calculate the mass of calcium oxide obtained when 50 g of calcium carbonate is completely decomposed by heating. (Ca = 40, C = 12, O = 16)
4 marksHardNumerical
- Answer available
Class 10 · Chemistry · Mole Concept and Stoichiometry
Calculate the percentage of nitrogen in ammonium nitrate, NH4NO3. (N = 14, H = 1, O = 16)
2 marksEasyNumerical
- Answer available
Class 10 · Chemistry · Mole Concept and Stoichiometry
Calculate the volume occupied by 8 g of oxygen gas at STP. (O = 16, molar volume = 22.4 dm3)
3 marksMediumNumerical
- Answer available
Class 10 · Chemistry · Mole Concept and Stoichiometry
Calculate the number of moles in 44 g of carbon dioxide. (C = 12, O = 16)
2 marksEasyNumerical