chemistry

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You add 9.1 of iron to 25.50 of water and observe that the volume of iron and water together is 26.66 . Calculate the density of iron.

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    mass Fe = 9.1g.
    I assume the volume is measured in cc.
    volume Fe = 26.66cc-25.50cc = 1.66 cc.
    Then density = mass/volume = ?

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