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The mass of a cube of iron is 277 g. Iron has a density of 7.87 g/cm3. What is the mass of a cube of lead that has the same dimensions?

  • Chemistry -

    After treating a coloured solution of a compound with activated charcoal, filtering and drying the product, the colour of the product was grey. What caused the grey colour? How can the grey colour be removed?

  • Chem -

    volume Fe = mass/density.
    Solve for volume Fe.
    mass Pb = volume x density Pb. The density of Pb is about 11.3 g/cc but you should confirm that.

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