StoichiometryMass–Volume Stoichiometry171Choose the best answerWhat volume of O₂ at STP (273 K and 1 atm) is required to react completely with 8.0 g CH₄? CH₄ + 2O₂ → CO₂ + 2H₂OA44.8 LB22.4 LC11.2 LDNone of these Like 0 Discuss 0Share
StoichiometryMole#Mole Concept172Choose the best answerWhat is the mass of 0.001 mol of MgSO₄? (Molar mass ≈ 120 g mol⁻¹)A0.012 gB0.12 gC1.2 gD0.240 g Like 0 Discuss 0Share
StoichiometryGas Density and Molar Mass173Choose the best answerA gas has a density of 2.0 g L⁻¹ at STP (273 K and 1 atm). The gas is most likely:ACOBSO₂CCO₂DCH₄ Like 0 Discuss 0Share
StoichiometryPercentage Yield174Choose the best answerThe expression: (Actual yield / Theoretical yield) × 100 represents:APercentage yieldBActual yieldCTheoretical yieldDLimiting yield Like 0 Discuss 0Share
StoichiometryMolar Properties of Gases175Choose the best answerWhich property is NOT generally the same for one mole of different ideal gases at STP?AVolumeBMolar massCNumber of moleculesDNone of these Like 0 Discuss 0Share