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Posted by on Monday, May 12, 2014 at 12:23pm.

a piece of iron measures 10.5cm by 5.25cm by 10.2mm and the density of theiron is 7.86g/cm cubed. what is the mass of the iron?

  • chemistry - , Monday, May 12, 2014 at 12:27pm

    Convert 10.2mm to cm:

    10.2mm*(10^-1cm/1mm)=10.2 x 10^-1 cm

    Find the volume of the cube:

    (10.5cm)*(5.25cm)*(10.2 x 10^-1 cm)=volume of cube


    Solve for mass:


    7.86g/cm^3*Volume of cube=mass

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