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25 December, 19:25

The formula for density is given by, where p is density, M is mass and V is volume. If a substance has a mass of 27.82 grams and a volume of 3.6 ml, what is the most accurate density of the substance in g/ml?

a) 7.7

b) 7.7278

c) 7.73

d) 0.1

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Answers (2)
  1. 25 December, 20:19
    0
    P = [27.82] : [3.6]

    p = 7.727·

    p = 7.728 (3dp)

    The answer is B)
  2. 25 December, 22:27
    0
    7.73 is the density since density = m/v so you would do 27.82/3.6 to get 7.73
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