How would you calculate the percentage by mass of oxygen in a compound?

Answer 1

#"%Oxygen"="Mass of oxygen"/"Formula mass of compound"xx100%#

Let's try this with #"potassium permangante, " KMnO_4#, whose formula mass is #158.03*g*mol^-1#.
#"% oxygen "= (4xx15.999*g*mol^-1)/(158.03*g*mol^-1)xx100%~=40%#
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Answer 2

In order to determine the mass percentage of oxygen in a compound, divide its total mass by the mass of its oxygen atoms, and then multiply the result by 100.

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Answer from HIX Tutor

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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