HarriottAinsley HarriottAinsley

27-09-2016
Chemistry

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How many moles of bromine (Br) atoms are in a sample of 2.03 × 10^24 atoms? Thank You!

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Willchemistry Willchemistry

27-09-2016

1 mole Br -------------------- 6.02x10²³ atoms
?? moles Br ---------------- 2.03x10²⁴ atoms

( 2.03x10²⁴) x 1 / 6.02x10²³ =

2.03x10²⁴ / 6.02x10²³ => 3.37 moles of Br

hope this helps!

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