Chemistry 11

Worksheet 2.1

Calculations Using Unit Conversions Use the following list of conversion factors to solve the following problems. 1.06 quarts/liter

1 milliliter/(centimeter)3

100 centimeters/meter

4 quarts/gallon

24 hours/day

1000 meters/kilometer

2 pints/quart

7 days/week

108 Å/centimeter

2 cups/pint

1.0 miles/1.6 kilometers

60 seconds/minute

12 inches/foot

2000 pounds/ton

60 minutes/hour

3 feet/yard

16 ounces/pound

52 weeks/year

1000 millimeter/meter

454 grams/pound

1000 grams/kilogram

1000 milliliters/liter

2.54 centimeters/inch

1.

How many grams of sulphur are in 2.00 tons of sulphur?

2.

How many milliliters of H2O are there in 4.00 gallons of H2O?

3.

How many pounds of iron are contained in 5000 kilograms of iron ore.

4.

How many cubic centimeters are contained in 4.00 quarts of antifreeze?

5.

How many seconds are there in 1 year?

6.

If the price of potatoes is $1.25/5.0 pounds, what is the price/kilogram?

7.

Determine the cost of gasoline in cents/gallon if 1.0 liters costs 18 cents.

8.

If the price of hamburger is $1.10/pound, what is the cost per kilogram?

9.

If a car traveling at 55 miles/hour, how many meters/second is it moving?

10.

A 100 yard dash is how many meters?

11.

The distance between Morgantown and Pittsburgh is 70 miles; this represents how many kilometers?

12.

If the price of eggs is 60 cents/dozen, how much is the price in cents/kilogram? Assume each egg weighs 45 g.

13.

If a car gets 25 miles/gallon of gasoline, determine how many kilometers/liter this is.

14.

If there are 16 squiggles in a fork and 3.5 forks in a widget, how many squiggles in 10 widgets?

WS2-1 Unit Conversions

1

Chemistry 11

Worksheet 2.1

15.

There are 4.0 distos in a tylup and one tylup is composed of 6.0 karks. How many distos are in 15.0 karks?

16.

Calculate the number of cujos in 18.0 dolces. There are 21.0 saschas to a dolce, and 6.2 cujos in a saschas.

17.

Across the border in Blaine, gas costs $3.78 US/gallon. How may kilometers can you travel on $20 CDN. Assume that the exchange rate is $1.24 CDN = $1 US and that the fuel consumption is 10.7 L/100 km. (1 gallon = 4 quarts and 1.06 quarts = 1 litre)

WS2-1 Unit Conversions

2

Chemistry 11

Answers to Worksheet 2.1

Answers to Calculations Using Unit Conversions 2000 lb 454 g 6 x = 1.816 x 10 g ton lb

1.

2 tons sulphur x

2.

4 gallons x

3.

5000 kg Fe ore x

4.

4 qt x

5.

1 year x

6.

$1.25 lb 1000 g x x = $0.55/kg 5 lb 454 g kg

7.

18 cents L 4 qt x x = $0.68/gallon L 1.06 qt gallon

8.

$1.10 lb 1000 g x x = $2.42/kg lb 454 g kg

9.

55 mile 1.6 km 1000 m hr min x x x x = 24 m/s hr mile km 60 min 60 s

10.

100 yd x

11.

70 mile x

12.

60 cents dozen egg 1000 g x x x = $1.11/kg dozen 12 eggs 45 g kg

13.

25 mile 1.6 km gallon 1.06 qt x x x = 10.6 km/L gallon mile 4 qt L

14.

16 squiggles 3.5 forks x x 10 widgets = 560 squiggles fork widget

15.

4.0 distos tylup x x 15 karks = 10 distos tylup 6 karks

16.

18 dolces x

21 saschas 6.2 cujo x = 2.34 x 103 cujos dolces saschas

17.

$20 CDN x

$1 US gallon 4 qt 1L 100 km x x x x = 150.5 km $1.24 CDN $3.78 US gallon 1.06 qt 10.7 L

4 qt L 1000 mL x x = 1.51 x 104 mL gallon 1.06 qt L 1000 g pound x = 11013 lbs kg 454 g

L 1000 mL 1 cm3 x x = 3.77 x 103 cm3 1.06 qt L 1 mL 52 week 7 day 24 hr 60 min 60 s x x x x = 3.15 x 107 s year week day hr min

3 ft 12 in 2.54 cm m x x x = 91.4 m yd ft in 100 cm 1.6 km = 110 km mile

CALCULATIONS USING UNIT CONVERSIONS

1

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