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The mass of a 50-mL volumetric flask is 40.638 g. After adding 15.0 mL of 95% ethanol and filling to the calibration mark with water, the flask weighed 88.219 g. What is the density of the mixture?
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The mass of a 50-mL volumetric flask is 40.638

g. After adding 15.0 mL of 95% ethanol and filling to the calibration mark with water, the flask weighed 88.219
g. What is the density of the mixture?

User Brandon Essler
by
5.7k points

1 Answer

4 votes

D = 0.9570 g/mL

Mass of mixture = 88.219 g – 40.368 g = 47.851 g

D = mass/volume = 47.851 g/50.00 mL = 0.9570 g/mL

User Shehram Tahir
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