Question

calculate the number of atoms present in 1.6g of oxygen.​

Answer 1

Molecular weight of oxygen=12

Moles=given wt/molecular weight

Moles=1.6/16

=0.1

No of atoms =moles×Av.const

=0.1×6.022×10²³

=6.022×10²²

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Answer 2

Refer to the attachment.