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

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12.044 x 10²³

16.044 x 10²³

10.068 x 10²³

13.054 x 10²³

answer is A.

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Detailed Solution

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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