StoichiometryGram-Atom and Mole Concept211Choose the best answerHow many gram-atoms of oxygen are present in 0.3 mol H₂C₂O₄·2H₂O?A0.6B1.8C1.2D3.6 Like 0 Discuss 0Share
StoichiometryPercentage Composition by Mass212Choose the best answerWhich compound contains the highest percentage of hydrogen by mass?ACH₄BC₆H₁₈CC₃H₆DC₂H₂ Like 0 Discuss 0Share
StoichiometryLimiting Reagent213Choose the best answerIn the reaction: 4NH₃ + 5O₂ → 4NO + 6H₂O 1 mol NH₃ is mixed with 1 mol O₂. Which statement is correct?AExactly 1 mol H₂O is producedBAll O₂ is consumedC1.5 mol NO is formedDAll NH₃ is consumed Like 0 Discuss 0Share
StoichiometryMole Concept and Number of Particles214Choose 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 Concept215Choose the best answer1.204 × 10²⁴ atoms represent approximately:A1 molB2 molC20 molD0.2 mol Like 0 Discuss 0Share