Calculate the number of gram - atoms and gram - molecules in 48 g of oxygen

3 gram, 1.5 gram molecules

Explanation

Atom mass of O is 16 U

number of gram atom of oxygen= mass/gram atomic mass

gram atomic mass is the mass of the substance represented in grams.

Gram atomic mass of oxygen is 16g.

number of atoms= 48/16= 3gram atom of 0

Molecular mass of oxygen Is 32g.

Number of gram molecules

= gram/ mass

=48/32= 1.5 molecules

the atomic mass is the bottom number on the element.

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