eV/atom to kJ/mol

[KiaraTenorio_14B]

When converting eV/atom to kJ/mole after multiplying 1.66x10^-9 by 1.602x10^-19J and 1 kJ must we use avogadros number to convert from the atoms to the mol unit or do we not?

[Trisha Mantri 3L]

I believe so, yes. If it says per molecule of a certain element, you need to use Avogadro's number in the conversion.

[Ellie Fox 2K]

Yes, you use Avogadro's number to get atoms to moles

[Divya Mehta 2K]

Yes, you must as the molar mass is the mass for a whole mole of atoms so if you want to get the mass per atom of whatever element (or photon, electron, neutron, etc), you need to divide by avogadros number.

[emily3L]

Yes, when going from moles to atoms.

[Rhea Jain 2I]

Yes, you need to use Avogadro's number to convert from moles to molecules/atoms. (6.02 x 10^23)

[Aparna Pillai 1E]

Yes. After converting eV/atom to kJ/atom, you would then divide by 6.02 × 10^23 atoms/mol to get units of kJ/mol.

[Neha Mukund]

Yes, when going from moles to atoms you need to use Avogadro's number.

[tashyavakil 2K]

Yes you do. In general when converting units I would lay them all out as an equation to make sure the units properly cancel out. That way you don't have to memorize anything.

[Tyler Olson 1E]

Yes Avogadro's number is required because it is the only way to go from number of atoms to mols.

[605537776]

Yes because you need it to go from number of atoms to mols.