Question

If a rock sample has a mass of 1.17 g and a volume of 0.33 cm3, what type of rock is it? if a rock sample has a mass of 2.7 g and a volume of 1.1 cm3, what type of rock is it? if a rock sample has a mass of 11.2 g and a volume of 1.9 cm3, what type of rock is it?

Answers

  1. The given rock is a diamond because its density ranges among 3.5 and 3.54 g/cm³.

    What is density?

    Density is the mass of a specific material per unit volume. Density is commonly measured in grams per cubic centimetre. Water, for example, has a density of 1 gram per cubic centimetre, whereas Earth has a density of 5.51 grams per cubic centimetre.
    • Density is also measured in kilograms per cubic metre (or metre-kilogram-second or SI units).
    • Air has a density of 1.2 kilograms per cubic metre. Textbooks and handbooks list the densities of popular solids, liquids, and gases.
    • Density provides an easy way to calculate a body’s mass from its volume and vice versa; a mass is proportional to the quantity multiplied by density (M = Vd), or the volume is equal to mass divided by the density. (V = M/d).
    The formula for density is;
    D = M/V,
    where,
    D is density,
    M is mass ( = 1.17 g)
    V is volume (0.33 cm³)
    Substituting the values in the density formula;
    Density = 1.17/0.33
    Density = 3.54 g/cm³
    As, diamond has a density that ranges between 3.5 & 3.54 g/cm3. As a result, the above rock is indeed a diamond.
    To know more about the density, here
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    The correct question is-
    If a rock sample has a mass of 1.17 g and a volume of 0.33 cm3, what type of rock is it?

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