Answer:
Moles = 0.0185 mol
Explanation:
In chemistry mole is used as a unit of amount of a substance. So, it is defined as the number that is equal to the number of carbon atoms found exactly in 12 grams of Carbon-12 isotope. It has following mathematical forms
Moles = Mass / Molar Mass
Moles = Mass / Atomic Mass
Moles = 6.022 × 10²³ Particles
In given problem we will use the second equation as,
Mass Given = 0.50 gram
Atomic Mass of Aluminium = 26.98 g/mol
Putting values in 2nd eq.
Moles = 0.50 g / 26.98 g/mol
Moles = 0.0185 mol
