courtneywilson32 courtneywilson32

06-03-2016
Chemistry

contestada

Calculate the moles of Cu in 7.4×1021 atoms of Cu.

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Willchemistry Willchemistry

15-03-2016

1 moles -------- 6.02x10²³ atoms
?? moles ----- 7.4x10²¹ atoms

moles = 7.4x10²¹ / 6.02x10²³

= 0.01229 moles

hope this helps!

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