StoichiometryMole Concept and Number of Particles211Choose the best answerWhich statement is NOT true for 1 mol CO and 1 mol CO₂?AThey contain equal numbers of moleculesBThey occupy equal volumes as ideal gases at the same temperature and pressureCThey contain equal total numbers of atomsDA and B are true Like 0 Discuss 0Share
StoichiometryAvogadro Constant and Mole Concept212Choose the best answer1.204 × 10²⁴ atoms represent approximately:A1 molB2 molC20 molD0.2 mol Like 0 Discuss 0Share
StoichiometryPercentage Yield213Choose the best answerThe expression: (Actual yield / Theoretical yield) × 100 represents:APercentage yieldBActual yieldCTheoretical yieldDLimiting yield Like 0 Discuss 0Share
StoichiometryMole#Mole Concept214Choose 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
StoichiometryLimiting Reagent215Choose the best answer28 g N₂ reacts with 6 g H₂: N₂ + 3H₂ → 2NH₃ Which is the limiting reagent?AN₂BH₂CNH₃DNeither reactant Like 0 Discuss 0Share