Question

How many oxygen atoms are there in 22.0 g of carbon dioxide?

Answer 1

Answer:  Given

Co2

So in this we have 1 mole of carbon and 2 moles of oxygen

Mass of one mole of carbon = 12

Mass of one mole of oxygen =16

Total mass =12+(16x2)

=12+32

=44g

1 mole of Co2 having 44g mass

Now we are having 22g

So

Dividing it with 2

Then we get half mole of carbon and 1 mole of oxygen

22g=1/2 mole of carbon + 1 mole of oxygen

1 mole of oxygen contains 6.023 x10²³ atoms of oxygen.

Therefore 22g of Co2 contains 6.023x10²³ atoms of oxygen

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Answer 2

Answer:

So 22g of CO2have 3.011×1023 CO2molecules.