StoichiometryLimiting Reagent146Choose the best answerA limiting reagent is the reactant that:AIs consumed laterBIs consumed firstCRemains unchangedDIs always present in excess Like 0 Discuss 0Share
StoichiometryAvogadro Constant147Choose the best answerAvogadro constant corresponds approximately to the number of atoms present in:A18 g H₂OB12 g ¹²CC180 g C₆H₁₂O₆D44 g CO₂ Like 0 Discuss 0Share
StoichiometryMole Concept and Number of Molecules148Choose 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
StoichiometryMolecular Formula and Molar Mass149Choose the best answerOne mole of a compound contains 1 mol C atoms and 2 mol O atoms. Its molar mass is:A3 g mol⁻¹B12 g mol⁻¹C32 g mol⁻¹D44 g mol⁻¹ Like 0 Discuss 0Share
StoichiometryMole#Mole Concept150Choose the best answerWhich statement is correct for 98 g (1 mol) of H₂SO₄?Atwice the Avogadro's number of oxygen atomsBfour times the Avogadro's number of atomsCtwice the Avogadro's number of hydrogen atomsDB and C Like 0 Discuss 0Share