Stoichiometry Stoichiometry MCQS#Mole Concept21Choose the best answerHow many moles of atoms are present in 0.1 mol of a triatomic molecule?A0.1 mol atomsB0.3 mol atomsC3 mol atomsD1 mol atoms Like 0 Discuss 0Share1
Stoichiometry Stoichiometry MCQS#Mole Concept22Choose 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 Concept23Choose 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
Stoichiometry Stoichiometry MCQS#Atomic Structure#Isotopes24Choose the best answerWhich pair represents isotopes of the same element?A¹²C and ¹⁴NB³⁵Cl and ³⁷ClC⁴⁰Ar and ⁴⁰CaD²³Na and ²⁴Mg Like 0 Discuss 0Share
Stoichiometry Stoichiometry MCQS#Atomic and Molecular Mass25Choose the best answerIf the molecular mass of X₂ is 50 u, what is the atomic mass of X?A100 uB25 uC50 uD12.5 u Like 0 Discuss 0Share