StoichiometryMass–Mass Stoichiometry81Choose the best answerWhat mass of CO₂ is formed when 8 g O₂ reacts with excess CO? 2CO + O₂ → 2CO₂A88 gB44 gC22 gD11 g Like 0 Discuss 0Share
Stoichiometry Stoichiometry MCQS#Formula Mass82Choose the best answerWhich term is used for the mass of an ionic compound such as MgO?AMolecular massBFormula massCAtomic massDIsotopic mass Like 0 Discuss 0Share
StoichiometryMass–Mass Stoichiometry83Choose the best answerH₂ burns in chlorine according to: H₂ + Cl₂ → 2HCl What mass of Cl₂ is required to react completely with 4 g H₂?A35.5 gB71 gC142 gD71.5 g Like 0 Discuss 0Share
StoichiometryMass–Volume Stoichiometry84Choose 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 Stoichiometry85Choose 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