Solutions to Practice Problems Week 2
- How
many mg are in a 5.0 grain aspirin tablet? (1.00 grain = 64.8 mg)
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- Convert 6.7 x 1015 um3 into m3.
6.7 x 1015 um3 * (10-6 m / um)3 = 0.0067 m3
- How
many centimeters are in 6.15 feet?
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- How
many grams in 0.850 tons? (2000 lb = 1 ton (exact); 1 lb = 453.59 grams)
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- The price
of gasoline in France
is 5.91 French francs/liter. What is the cost in
$/gal.? ($1 = 5.25 French francs; 1.056688209 qt = 1.00 liters)
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- What
is the volume in pints of 2.75 lb of gold? (density of gold: 19.3 g/cm3)
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- The
density of mercury is 13.546 g/cm3. What is the density of
mercury in lb/gal.?
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- In a
normal person, the level of blood sugar is 85 mg/100.0 mL
(milligrams per deciliter). If the average body contains about 11 pints of
blood, how many pounds of blood sugar are present in the blood?
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- A
pediatric dosage of a certain antibiotic is 32 mg/kg of body weight per
day. How much antibiotic, in milligrams per day, should be administered to
a child who weighs 38 lb?
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- How
many grams of Al can be heated from 25.0°C to 125°C by 975 calories?
(specific heat of Al: 0.221
)
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- It was
found that 60.9 calories of heat must be absorbed to raise the temperature
of a 50.5 g sample of an unknown metal from 20.0°C to 31.4°C. What is the
specific heat capacity of the metal?
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