What is the mass of one molecule of octane #C_8H_18#?

1 Answer
anor277
Jul 30, 2017

Well, we know that one mole of octane molecules has a mass of #114.23*g#..........

Explanation:

And since one mole represents #6.022xx10^23# individual molecules.....we take the quotient......

#(114.23*g*mol^-1)/(6.022xx10^23*mol^-1)=1.90xx10^-22*g#.

...to give the mass of the one octane molecule. Capisce?

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