How many moles are present in 5.0 billion atoms of carbon? ___________ (Answer with the correct number of sig figs)

1 Answer
Ernest Z.
Mar 15, 2018

There are #ul(8.3 × 10^"-15" color(white)(l)"mol")#.

Explanation:

#5.0 × 10^9 color(red)(cancel(color(black)("atoms"))) × "1 mol"/(6.023 × 10^23 color(red)(cancel(color(black)("atoms")))) = 8.3 × 10^"-15" color(white)(l)"mol" #

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