StoichiometryMass–Volume Stoichiometry1Choose the best answerIn the reaction: 2Na + 2H₂O → 2NaOH + H₂ what volume of H₂ at STP (273 K and 1 atm) is produced by 23 g Na?A11.2 dm³B2.44 dm³C10.60 dm³D44.8 dm³ Like 0 Discuss 0Share
StoichiometryMass–Volume Stoichiometry2Choose the best answerWhat mass of CS₂ is required to produce 22.4 dm³ SO₂ at STP? CS₂ + 3O₂ → CO₂ + 2SO₂A19 gB38 gC76 gD152 g Like 0 Discuss 0Share
StoichiometryMass–Volume Stoichiometry3Choose the best answerWhat volume of O₂ at STP (273 K and 1 atm) is obtained by electrolysis of 3.6 g H₂O? 2H₂O → 2H₂ + O₂A2.24 dm³B4.48 dm³C1.12 dm³D1120 dm³ Like 0 Discuss 0Share
StoichiometryMass–Volume Stoichiometry4Choose the best answerWhat volume of CO₂ at STP (273 K and 1 atm) is produced by complete combustion of 7 g C₂H₄? C₂H₄ + 3O₂ → 2CO₂ + 2H₂OA44.8 dm³B22.4 dm³C11.2 dm³D5.6 dm³ Like 0 Discuss 0Share
StoichiometryMass–Volume Stoichiometry5Choose the best answerHow many litres of H₂ at STP are produced when 6.0 g Mg reacts with excess HCl? Mg + 2HCl → MgCl₂ + H₂A22.4 LB11.2 LC5.6 LDNone of these Like 0 Discuss 0Share