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You add 8.2g of iron to 25.40mL of water and observe that the volume of iron and water together is 26.44mL . Calculate the density of iron.

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asked by silvia
  1. evidently the volume of iron is 26.44-25.40 = 1.04 mL.

    So, the density is 8.2g/1.04mL = 7.88 g/mL

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    posted by Steve

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