Chemistry - how many atoms are in 1.0 x 10 to the 9th power atoms of copper?

Answers (2)

1 mol=6.022x10^23 (Avogadro's number)

1.0x10^9/6.022x10^23=1.7x10^-15 mol

it doesn't matter the substance.
You can have a mole of pickles, if you so please.

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1.0 x 10 to the 9th power = 1.0 x 10^9 = 1,000,000,000
That's one billion.

Just in case you were really asking what you wrote ;)

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