Stoichiometry Stoichiometry MCQS#Mole Concept36Choose the best answerWhich sample contains the greatest number of molecules?A5 mol CH₄B10 mol N₂C15 mol COD20 mol N₂O Like 11 Discuss 0Share
Stoichiometry Stoichiometry MCQS#Avogadro's Number37Choose the best answerOne mole of P₄ contains:A6.02 × 10²³ P atomsB6.02 × 10²³ P₄ moleculesC4 × 6.02 × 10²³ P₄ moleculesD4 moles of P₄ molecules Like 0 Discuss 0Share
Stoichiometry Stoichiometry MCQS#Mole Concept38Choose the best answerWhich statement correctly defines an element?AIt contains different types of atomsBIt cannot be broken into simpler substances by ordinary chemical meansCIt must always exist as moleculesDIt is always a metal Like 0 Discuss 0Share
Stoichiometry Stoichiometry MCQS#Mole Concept39Choose the best answerFor which substance are molecular mass and formula mass numerically the same?A56 amu CaCO₃B40 g MgOC17 amu NH₃DA and B Like 0 Discuss 0Share
Stoichiometry Stoichiometry MCQS#Mole Concept40Choose the best answerWhat is the molar mass of methane, CH₄?A1 g mol⁻¹B32 g mol⁻¹C16 g mol⁻¹D50 g mol⁻¹ Like 0 Discuss 0Share