How many grams of ethanol (density 0.80 g/cm 3) should be added to 5.0 g of chloroform (density 1.5 g/cm 3) if the resulting mixture is to have a density of 1.2 g/cm 3? assume that the fluids do not change their volumes when they are mixed.

9.2 grams of ethanol should be added.

Explanation:

Let the mass of ethanol be x

Density of an ethanol =

Volume of the ethanol =

Mass of chloroform = 5.0 g

Density of an chloroform=

Volume of the ethanol =

Mass of the mixture,m  = x + 5.0 g

Density  of the mixture =

Volume of the mixture=

Solving for x , we get

x = 9.2 g

9.2 grams of ethanol should be added.

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