StoichiometryMole Concept and Number of Molecules6Choose the best answerWhich sample contains the greatest number of molecules?A2 mol H₂B4 mol CH₄C6 mol SO₂D10 mol O₂ Like 0 Discuss 0Share
StoichiometryMole Concept and Number of Molecules7Choose the best answerWhich sample contains the largest number of molecules?A3.6 g H₂OB2.8 g COC4.8 g C₂H₅OHD5.4 g N₂O₅ Like 0 Discuss 0Share
StoichiometryMole Concept and Number of Molecules8Choose the best answer56 g N₂ contains the same number of molecules as:A180 g glucoseB8 g CH₄C128 g O₂D4 g H₂ Like 0 Discuss 0Share
StoichiometryMole Concept and Number of Molecules9Choose the best answerA sample of H₂ contains 3.01 × 10²³ molecules. What is its approximate mass?A2 gB1 gC0.5 gDNone of these Like 0 Discuss 0Share
StoichiometryMole Concept and Number of Molecules10Choose the best answerHow many H₂ molecules are present in 0.20 g H₂? Molar mass of H₂ = 2.016 g mol⁻¹A(0.20/2.016) × 6.02 × 10²³B(2.016/0.20) × 6.02 × 10²³C0.20 × 1.008DNone of these Like 0 Discuss 0Share