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2 June, 12:18

a graduated cylinder has a mass of 50 g when empty. when 30 mL of water is added, the graduated cylinder has a mass of 120 g. if a rock is added to the grand cylinder, the water level rises to 75 mL and the total mass is now 250 g. what is the density of the rock?

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  1. 2 June, 12:40
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    The answer to your question is:

    a) The gold cube is larger.

    b) lenght = 1.67 cm

    Explanation:

    Data

    Platinum density 21.45 g/cm3 100 gram cube

    Gold density 19.3 g/cm3 100 gram cube

    Formula

    density = mass / volume

    a) Calculate volume

    volume = mass / density

    Platinum volume = 100 / 21.45 = 4.66 cm3

    Gold volume = 100 / 19.3 = 5.18 cm3

    b) Volume = lenght³

    4.66 cm³ = lenght³

    lenght = ∛4.66

    lenght = 1.67 cm
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