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How many moles are in #5.40 x 10^224# molecules of #NO_2#?

Answer 1

Serenity Allen

#"An unfeasibly large number of moles........"#

A mole of #NO_2# contains #6.022xx10^23# individual molecules........and has a mass of #44*g#.

But #5.40xx10^224# nitric oxide molecules represents a molar quantity of:

#(5.40xx10^224*"molecules")/(6.022xx10^23*"molecules"*mol^-1)#

#=8.97xx10^200*"moles"#

Your question is irrational because this molar quantity has a mass that is MANY times that of the galaxy and most likely the entire universe.

Do you mean #5.40xx10^24# molecules?

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Answer 2

Henry Antrim

5.40 × 10^224 molecules of NO2 contain roughly 8.96 × 10^199 moles.

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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.