Q.

Calculate the number of oxygen atoms in 1 mole of O2.

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a

12.044 x 1023

b

16.044 x 1023

c

10.068 x 1023

d

13.054 x 1023

answer is A.

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Detailed Solution

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1 molecule of O2 has 2 oxygen atoms

So, 1 mole of O2 will contain 2 mole of oxygen atoms

Now, one mole of each substance has 6.022 x 1023 molecules/atoms/particles.

Therefore,

1 mole of O2 = 2 x 6.022 x 1023

= 12.044 x 1023 oxygen atoms

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Calculate the number of oxygen atoms in 1 mole of O2.