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| Chapter 4 Problem Solving in Chemistry |
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| Answers to End of Chapter Questions and Problems For the 1987 Copyright of The Addison Wesley Textbook |
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| Additional Practice Problems | ||||||||||||||||||||||
| 1) Fill in the blank with the correct number or metric prefix. a. 1 centimeter = ______ meter b. 1 _____ liter = 0.001 liter c. 1 microgram = _____ gram d. 1 _____ volt = 1000 volts e. 1 nanosecond = _____ second 2) Perform the following unit conversions a. 0.001348 g to milligrams b. 3560 N to kilonewtons c. 5.29 cs to seconds d. 81 mW to watts 3) Perform the following unit conversions. a. 12 in to centimeters b. 3.76 hr to minutes c. 137 J to calories d. 0.085490 atm to pascals 4) A brick used in the construction of pottery kilns is 11.0 cm wide, 6.0 cm tall, and 22.7 cm long. The brick has a mass of 2950. g. What is the density of the brick? 5) A friend shows you a gift she has received - a gold ring! In the laboratory, you find its mass to be 58.21 g and its volume to be 3.64 cubic centimeters. Calculate the density of the ring. Is it really pure gold? Why or why not? 6) Perform the following unit conversions. Identify any that are impossible conversions. a. 75 mm to inches b. 18.69 m to feet c. 3 kg to liters d. 190 pm to centimeters e. 64.05 mL to seconds f. 392 mm Hg to atmosphers 7) Perform the following unit conversions. Identify any that are impossible conversions. Express your answer in scientific notation when necessary. a. 10.42 x 10^-2 m to millimeters b. 5.83 x 10^5 L to cubic meters c. 2.56 x 10^4 Pa to atmospheres d. 45 km to inches e. 2.7 hr to milliseconds f. 7.9 x 10^3 K to milliamperes | ||||||||||||||||||||||