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Conversion Word Problems
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100


What is the mass of 53 mL of ethanol, which has a density of 0.79 g/mL?





42 grams

100

1 g = ________ kg            

0.001 kg

200

A jar contains 0.29 kg of olives. How many grams of olives are in the jar?

1kg=1000g

290g

200


The liter is a unit of volume in the metric system.

True or False





True

300

How many kilometers are there in 3.01 nm?  

  3.01x 10^-12


300

An unknown liquid has a density of 1.32 g/mL. What is the volume (mL) of a 14.7 g sample of the liquid?

11.1 ml

300


Which one of the following substances will float in gasoline, which has a density of 0.66 g/mL?

A. Aluminum (2.70 g/mL)
B. Ice (0.92 g/mL)
C. Cork (0.24 g/mL)
D. Gold (19.3 g/mL)




Cork

400


How many kilograms are in 30.4 lb?





13.8 kg

400

A 20.0-mL sample of a glucose IV solution has a mass of 20.6 g. What is the density of the glucose solution?

1.03 g/mL

400

Round off or add zeros to the following calculated answers to give a final answer with three significant figures: 

0.00001258 L

0.0000126 L

500

An athlete with a body mass of 65 kg has 3.0% body fat. How many pounds of body fat does that person have?

4.3 lbs