What mass is a sample of oxygen gas that contains Avogadro's number of atoms?

Answer 1

#"A 16 g mass..."#

Most of the elemental gases, certainly the gases with any chemistry are BINUCLEAR... We speak of #"dinitrogen"#, #"dioxygen"#, #"dihalogen"#...

And so given a #16*g# mass of #O_2#...we gots HALF a mole of #O_2# #"oxygen molecules"#, and this is EQUIVALENT to #"ONE MOLE"# of #"oxygen atoms"#...

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Answer 2

Naomi Aronson

The molar mass of oxygen (O2) is approximately 32 grams per mole. Avogadro's number is approximately (6.022 \times 10^{23}). Therefore, the mass of a sample of oxygen gas containing Avogadro's number of atoms would be approximately 32 grams.

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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.