A flask filled with ethanol at 20.0 degree C has a total mass of 48.676 g. The f

Question

A flask filled with ethanol at 20.0 degree C has a total mass of 48.676 g. The flask is emptied and some ball bearings with a mass of 19.234 g are added to the flask. The flask is topped off with ethanol and now the total mass is 65.761 g. Calculate the density of the ball bearings at 20.0 degree C. The density of ethanol at this temperature is 0.78945 g/cm3. (If you are having trouble visualizing the situation, imagine that the ball bearings were dropped into the filled flask and some ethanol over-flowed.)

Explanation / Answer

19.234/2.149 = 8.9502 g/cm^3

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