How many oxygen ATOMS are present in a #28.9*g# mass of #"dioxygen"#?
Approx.
We take the molar quantity of dioxygen....
...but NOTE we were asked for the number of oxygen atoms....and CLEARLY this is TWICE the number of oxygen molecules. Capisce?
And thus.....
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There are approximately ( 4.525 \times 10^{23} ) oxygen atoms present in a 28.9 g mass of dioxygen.
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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
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