Chemistry, asked by itsme1820, 4 months ago

A piece of Copper weighs 0.635g .How many atoms does it contain?(Atomic mass of Copper = 63u)

Answers

Answered by anshikasinha2006

0

Answer:

no. of moles =

63.5

0.635

= 0.01

1 mole contains 6.02x 10

23

atoms of copper

Therefore 0.01 mol contains 0.01x 6.02 x10

23

= 6.02 x10

21

Explanation:

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