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1 January, 19:53

The density for gold is 19.3 g/cm³. What would be the mass of a 30 cm³ piece of gold?

A. 1,158g

B. 570g

C. 579g

D. 1.55g

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Answers (2)
  1. 1 January, 19:59
    0
    C. 579g

    Explanation:

    Use the formula Density = mass / volume, make mass the subject of the formula and substitute the given values.

    19.3g/cm3 is the density of gold

    30cm3 is the volume for the piece of gold
  2. 1 January, 20:20
    0
    The answer is C.

    Explanation:

    It is given that the formula of density is, ρ = m/v where m is the mass of object and v is the volume of object. By using this formula, you are able to find the mass of gold:

    ρ = 19.3 g/cm³

    v = 30 cm³

    19.3 = m/30

    m = 19.3 * 30

    = 579 g
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