How many formula units in 7.25 moles of Al2O3.

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If you're asking for the mass (grams)

then 739.21 g

Explanation:

No. of mols = mass/molar mass

Mass= Molar mass x No. of mols

Mass= 101.96 g/mol x 7.25 mols

Mass= 739.21 g

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.