StoichiometryMass–Volume Stoichiometry21Choose the best answerWhat volume of CH₄ at STP (273 K and 1 atm) is required to react completely with 3.2 g O₂? CH₄ + 2O₂ → CO₂ + 2H₂OA4.48 LB2.24 LC1.12 LD0.56 L Like 0 Discuss 0Share
StoichiometryPercentage Composition by Mass22Choose the best answerWhich compound contains the highest percentage of hydrogen by mass?ACH₄BC₆H₁₈CC₃H₆DC₂H₂ Like 0 Discuss 0Share
StoichiometryLimiting Reagent23Choose the best answerFor the reaction: A + B₂ → AB₂ in which case is A the limiting reagent?A100 atoms A with 100 molecules B₂B5 mol A with 5 mol B₂C50 atoms A with 100 molecules B₂DCannot be predicted Like 0 Discuss 0Share
StoichiometryMole Concept and Specified Particles24Choose the best answerWhich sample contains exactly 1 mol of the stated particles?ACl₂ molecules in 35.5 g Cl₂BElectrons in 1.008 g H₂CH⁺ ions in 1 dm³ of 1 mol dm⁻³ H₂SO₄DO atoms in 22.4 dm³ O₂ at STP Like 0 Discuss 0Share
StoichiometryLimiting Reagent25Choose the best answerWhich statement about a limiting reagent is FALSE?AIt is completely consumedBIt limits the amount of product formedCIt is always the reactant with the smaller initial massDIts complete consumption stops further product formation Like 0 Discuss 0Share