StoichiometryMass–Mass Stoichiometry61Choose the best answerWhat mass of CaCO₃ is required to produce 2.8 g CaO? CaCO₃ → CaO + CO₂A2.5 gB5.0 gC10 gD50 g Like 0 Discuss 0Share
StoichiometryMass–Volume Stoichiometry62Choose the best answerOne gram of carbon is completely burnt in excess O₂: C + O₂ → CO₂ What volume of CO₂ is produced at STP (273 K and 1 atm)?A1 dm³B22.4 dm³C12 × 22.4 dm³D22.4/12 dm³ Like 0 Discuss 0Share
StoichiometryGas Volume Stoichiometry63Choose the best answerIn the reaction: N₂ + 3H₂ → 2NH₃ 6 L NH₃ is produced with no reactant left unused. What initial volumes of N₂ and H₂ were used at the same temperature and pressure?A3 L N₂ and 3 L H₂B1 L N₂ and 3 L H₂C2 L N₂ and 3 L H₂D3 L N₂ and 9 L H₂ Like 0 Discuss 0Share
StoichiometryGas Volume Stoichiometry64Choose the best answerHow many litres of HCl are produced when 100 L H₂ reacts with excess Cl₂ at the same temperature and pressure? H₂ + Cl₂ → 2HClA50 LB100 LC150 LD200 L Like 0 Discuss 0Share
StoichiometryMass–Mass Stoichiometry65Choose the best answer14 g N₂ reacts with 6 g H₂: N₂ + 3H₂ → 2NH₃ What mass of NH₃ is formed?A34 gB17 gC13.5 gDNone of these Like 0 Discuss 0Share