StoichiometryMole Concept and Number of Atoms36Choose the best answer0.5 mol H₂O contains how many moles of H atoms and O atoms, respectively?A1.0 mol H atoms and 0.5 mol O atomsB0.5 mol H atoms and 1.0 mol O atomsC1.0 mol H atoms and 1.0 mol O atomsD0.5 mol H atoms and 0.5 mol O atoms Like 0 Discuss 0Share
StoichiometryCombustion analysis37Choose the best answerWhich reagent absorbs CO₂ during combustion analysis?ALiOHB50% NaOHC50% KOHD95% KOH Like 0 Discuss 0Share
StoichiometryPercentage Composition by Mass38Choose the best answerWhat mass of SO₂ contains 8 g of oxygen?A64 gB32 gC16 gD8 g Like 1 Discuss 0Share
StoichiometryGas Volume and Number of Moles39Choose the best answerWhich sample contains the minimum number of moles at STP (273 K and 1 atm)?A1 dm³ CH₄B5 dm³ HeC10 dm³ H₂D22.4 dm³ Cl₂ Like 0 Discuss 0Share
StoichiometryMole Concept and Number of Atoms40Choose the best answerThe number of hydrogen atoms in 45 g glucose, C₆H₁₂O₆, is:A6.02 × 10²³B18 × 10²⁴C1.8 × 10²⁴D1.8 × 10²² Like 0 Discuss 0Share