Multiple ChoiceIn the mole concept, how many atoms are present in 0.25 mol of magnesium (Mg)? (Use Avogadro’s number NA=6.022×1023 atomsmol.)2views
Multiple ChoiceIn the mole concept, how many particles (entities) are in exactly 1 mole of a substance?2views
Multiple ChoiceHow many molecules are present in 0.500 mole of N2O5? (Use NA=6.022×1023 molecules/mol.)2views