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March 25, 2017

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what is the density of an 84.7g sample of an unknown substance if the sample occupies 49.6cm3? what volume would be occupied by 7.75g of this same substance? PLEASE help need the answer tonight i have a test tomorrow i kind of not understand the second question. THANK YOU SO MUCH.

  • chemistry - ,

    Density = Mass / Volume ...(1)

    mass = 84.7 g
    volume = 49.6 cm³
    Density = ? g/cm³

    Part 2:
    From (1), we have
    volume = mass / density
    Use mass = 7.75g and density calculated above.

  • chemistry - ,

    part 1: 1.70 g/cm3
    part 2: 4.55 cm3

  • chemistry - ,

    1.70

  • chemistry - ,

    what is the density of an 8.64 g sample of an unknown substance if the sample occupies 33.4 cm3?

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