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March 29, 2017

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A new penny has a mass of 2.54 g and a volume of 0.354 cm3. Is the penny made of pure copper? what is its density?

thanks:) Density is mass/volume but I don't know how to find it with g and cm3

  • Density - ,

    Well, mass is in g and volume is in cc (stands for cubic centimeter) so
    density = mass/volume = 2.54g/0.354 cc = ?? g/cc.

    Then compare with the density of pure copper.

  • Density - ,

    so how would I make it ___(g)/ 1 cc?

  • Density - ,

    divide 2.54 by .354

  • Density - ,

    oh yah. Thanks I got it:)

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