Question

calculate the no of moles
8gm O atoms​

Answer 1

We know gram atomic mass of an element is equal to one mole

So, 16g oxygen(atom) =1mole of oxygen atom otherwise 32g(if molecule o2)

1g oxygen = 1/16 moles

SO, 8g oxygen = 1/16*8 = 8/16 = 1/2 = 0.5 moles

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Answer 2

Explanation:

As we know, one mole of each substance have No

entities so

8g oxygen = 1/4

mole of oxygen =6.022×10^ 23/2

atoms =3.011×10^23atoms of oxygen