Ether floats on water, and water floats on mercury, as shown in the following di

Question

Ether floats on water, and water floats on mercury, as shown in the following diagram. Indicate in the above diagram where each of the following would come to rest after being dropped into the tall glass cylinder. an aspirin (d = 1.40 g/cm^3) a gold ring (d = 19.3 g/cm^3) a wood chip (d = 0.40 g/cm^3) plastic film (d = 0.92 g/cm^3) A 250-mL flask and stopper have a mass of 110.525 g. A 50.0-mL sample of gasoline is pipette into the flask, and the flask, stopper, and liquid have a mass of 145.028 g. Find the density of the gasoline. Density of Liquids and Solids

Explanation / Answer

1) higher denser compounds settle at bottom

wood chip will be at top most floating on plastic film.

Plastic film floats on aspirin. Aspirin floats on old ring

2) Mass of liquid = mass of flask with liquid - mass of empty flask

        = 145.028 - 110.525 = 34.5 g

volume of gasoline = 50 ml

density = mass / volume = 34.5 g/ 50 ml = 0.69 g/ml

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