1. A 105 mL sample of water at 292.4 K was heated for 9 min, 23s so as to give a constant
temperature increase of 3.0
o
F/min. What is the final temperature of the water in degrees
Celsius?
2. Vinaigrette salad dressing consists mainly of oil and vinegar. The density of olive oil is 0.918
g/cm
3
, the density of vinegar is 1.006 g/cm
3
, and the two do not mix. If a certain mixture of
olive oil and vinegar has a total mass of 395.4g and a total volume of 422.6 cm
3
, what is the
volume of oil and what is the volume of vinegar in the mixture?
3. A 1.0 ounce piece of chocolate contains 15 mg of caffeine, and a 6.0 ounce cup of regular
coffee contains 105 mg of caffeine. How much chocolate would you have to consume to get as
much caffeine as you would from 2.5 cups of coffee?
4. The density of chloroform, a widely used organic solvent, is 1.4832 g/mL at 20
o
C. How may
milliliters would you use if you wanted 119.0 g of chloroform?
5. Aspirin has a density of 1.40 g/cm
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 Spring '10
 DSAG
 Sulfuric acid

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