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21 October, 04:14

A flask weights 45.4 g when it is empty and 121.8 g when filled with water. When the same flask is filled with another liquid, the mass is 91.39 g. What is the density of the second liquid?

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  1. 21 October, 04:20
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    The answer to your question is: 1.19 gr/ml

    Explanation:

    empty flask weighs = 45.4 g

    filled with water = 121.8 g

    filled with a different substance = 91.39 g

    density of the second liquid =

    First we must calculate the mass of water in the flask by subtracting the flask filled with water and the flask empty.

    mass = flask filled with water - the flask empty.

    mass = 121.8 - 45.4 gr

    mass = 76.4 gr

    The density of water is always 1 gr/ml

    and density is mass/volume

    from here we calculate the volume = mass/density

    volume = 76.4/1 = 76.4 ml

    Now we calculate the density of the other liquid

    density = 91.39/76.4 = 1.19 g/ml
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