Respuesta :

wolfiemath
Aluminum Al2713 has an atomic molar mass of 27 grams per mole.

Al has 13 protons (hence number 13) and it most common isotope 14 neutrons for a total mass of 27 amu. ( The 13 electrons add no measurable mass to the atom)

Take the grams and divide by the molar mass

= 2 moles

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