StoichiometryAvogadro's Law16Choose the best answerWhich pair contains equal numbers of molecules?A1 g H₂ and 44 g CO₂B1 dm³ O₂ and 1 dm³ N₂ at the same temperature and pressureC1 mol H₂ and 0.5 mol HeDAll of these Like 0 Discuss 0Share
StoichiometryMass–Mass Relationship17Choose the best answerThe mass–mass relationship in stoichiometry is based on:ALaw of definite compositionBGay-Lussac's lawCAvogadro's lawDLaw of conservation of mass Like 0 Discuss 0Share
StoichiometryMole Concept and Mass Comparison18Choose the best answerWhich sample has the greatest mass?A1 gram-atom of CB0.5 mol CH₄C10 mL H₂OD3.011 × 10²³ O atoms Like 0 Discuss 0Share
StoichiometryLimiting Reagent and Mole–Mole Stoichiometry19Choose the best answerFor the reaction: 2A + 3B → 4C 3 mol A and 5 mol B are mixed. How many moles of C are formed?A8 molB5 molC6 molD6.67 mol Like 0 Discuss 0Share
StoichiometryMole#Mole Concept20Choose the best answerWhich descriptions are equivalent to one gram-atom of an element?AGram atomic massBOne gram-atomCOne mole of atomsDA, B and C Like 2 Discuss 0Share