StoichiometryMass–Volume Stoichiometry11Choose 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
StoichiometryMass–Volume Stoichiometry12Choose the best answerWhat volume of CO₂ at STP is produced from 1.0 g of CaCO₃? CaCO₃ → CaO + CO₂A22.4 LB2.24 LC0.224 LD0.0224 L Like 0 Discuss 0Share
StoichiometryMass–Volume Stoichiometry13Choose the best answerWhat volume of NH₃ at STP (273 K and 1 atm) is required to react completely with 49 g H₂SO₄? 2NH₃ + H₂SO₄ → (NH₄)₂SO₄A44.8 LB22.4 LC11.2 LD5.6 L Like 0 Discuss 0Share
StoichiometryMass–Volume Stoichiometry14Choose the best answerConsider the reaction: Ca + 2HCl → CaCl₂ + H₂ What volume of H₂ at STP (273 K and 1 atm) is produced when 20 g Ca reacts with excess HCl?A22.4 dm³B11.2 dm³C24.0 dm³D1.12 dm³ Like 0 Discuss 0Share