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17 April, 14:37

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

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  1. 17 April, 16:29
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    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
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