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A crucible contains 6.4 g of copper, Cu. How many moles does this amount contain? [Given: Cu=64]

A crucible contains 6.4 g of copper, Cu. How many moles does this amount contain? [Given: Cu=64]
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A crucible contains 6.4 g of copper, Cu. How many moles does this amount contain? [Given: Cu=64]

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User Fabrizio Ferrari
by
7.8k points

1 Answer

1 vote
Use this formula:
Mass = moles x RFM

(RFM = Relative Formula Mass, or the total mass of a substance or element for example Cu=64)

Rearrange the formula to find the number of moles
Moles = mass/RFM
=6.4/64
= 0.1
answered
User Richard Durr
by
7.4k points
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