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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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Answer:

The answer to your question is: 1.19 gr/ml

Step-by-step 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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User CambridgeMike
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