BasicsStoichiometry #Molecular Mass1Choose the best answerWhich substance has numerically equal molecular mass and formula mass?ACaCO₃BMgOCNH₃DCaCO₃ and MgO Like 0 Discuss 0Share
StoichiometryMolecular Mass2Choose the best answerWhich pair has the same molecular mass?ANO₂ and CO₂BCO(NH₂)₂ and CH₃COOHCC₂H₆ and C₃H₆DNone of these Like 0 Discuss 0Share
StoichiometryMolecular Mass3Choose the best answerThe mass of one H₂O molecule is approximately:A18 uB18 g mol⁻¹C18 mgD18 × 10⁻³ kg mol⁻¹ Like 0 Discuss 0Share