If a single helium atom has a mass of #6.65xx10^-27*kg#, what is the mass of a mole of helium atoms?

1 Answer
anor277
Oct 27, 2017

Well let's see, we got the mass of a SINGLE helium atom....#6.65xx10^-27*kg#...

Explanation:

...and we want (I presume!) its molar mass....

So we take the product.....

#"Avogadro's Number"xx6.65xx10^-27*kg=6.022xx10^23xx6.65xx10^-27*kgxx10^3*g*kg^-1-=4.00*g*mol^-1#

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