ࡱ> ?A> bjbj~~ .(Z Z 11118i u$1o<Mr)1! 1\v$?0oZ :   Review Problems For Chapter 3 1. Convert each of the following quantities to the required unit. a. 12.75 Mm to kilometers b. 277 cm to meters c. 30 560 m2 to hectares (1 ha = 10 000 m2) d. 81.9 cm2 to square meters e. 300 000 km to megameters 2. Convert each of the following quantities to the required unit. a. 0.62 km to meters b. 3857 g to milligrams c. 0.0036 mL to microliters d. 0.342 metric tons to kilograms (1 metric ton = 1000 kg) e. 68.71 kL to liters 3. Convert each of the following quantities to the required unit: a. 856 mg to kilograms b. 1 210 000 mg to kilograms c. 6598 mL to cubic centimeters (1 mL=1 cm3) d. 80 600 nm to millimeters e. 10.74 cm3 to liters 4. Convert each of the following quantities to the required unit: a. 7.93 L to cubic centimeters b. 0.0059 km to centimeters c. 4.19 L to cubic decimeters d. 7.48 m2 to square centimeters e. 0.197 m3 to liters 5. An automobile uses 0.05 mL of oil for each kilometer it is driven. How much oil in liters is consumed if the automobile is driven 20 000 km? 6. How many microliters are there in a volume of 370 mm3 of cobra venom? 7. A baker uses 1.5 tsp of vanilla extract in each cake. How much vanilla extract in liters should the baker order to make 800 cakes? (1 tsp = 5 mL) 8. A person drinks eight glasses of water each day, and each glass contains 300 mL. How many liters of water will that person consume in a year? What is the mass of this volume of water in kilograms? (Assume one year has 365 days and the density of water is 1.00 kg/L.) 9. At the equator Earth rotates with a velocity of about 465 m/s. a. What is this velocity in kilometers per hour? b. What is this velocity in kilometers per day? 10. A chemistry teacher needs to determine what quantity of sodium hydroxide to order. If each student will use 130 g and there are 60 students, how many kilograms of sodium hydroxide should the teacher order? 11. The teacher in item 10 also needs to order plastic tubing. If each of the 60 students needs 750 mm of tubing, what length of tubing in meters should the teacher order? 12. Convert the following to the required units. a. 550 (L/h to milliliters per day b. 9.00 metric tons/h to kilograms per minute c. 3.72 L/h to cubic centimeters per minute d. 6.12 km/h to meters per second 13. Express the following in the units indicated. a. 2.97 kg/L as grams per cubic centimeter b. 4128 g/dm2 as kilograms per square centimeter c. 5.27 g/cm3 as kilograms per cubic decimeter d. 6.91 kg/m3 as milligrams per cubic millimeter 14. A gas has a density of 5.56 g/L. a. What volume in milliliters would 4.17 g of this gas occupy? b. What would be the mass in kilograms of 1 m3 of this gas? 15. The average density of living matter on Earths land areas is 0.10 g/cm2. What mass of living matter in kilograms would occupy an area of 0.125 ha? 16. A textbook measures 250. mm long, 224 mm wide, and 50.0 mm thick. It has a mass of 2.94 kg. a. What is the volume of the book in cubic meters? b. What is the density of the book in grams per cubic centimeter? c. What is the area of one cover in square meters? 17. A glass dropper delivers liquid so that 25 drops equal 1.00 mL. a. What is the volume of one drop in milliliters? b. How many milliliters are in 37 drops? c. How many drops would be required to get 0.68 L? 18. Express each of the following in kilograms and grams: a. 504 700 mg b. 9 200 000 (g c. 122 mg d. 7195 cg 19. Express each of the following in liters and milliliters: a. 582 cm3 b. 0.0025 m3 c. 1.18 dm3 d. 32 900 (L 20. Express each of the following in grams per liter and kilograms per cubic meter. a. 1.37 g/cm3 b. 0.692 kg/dm3 c. 5.2 kg/L d. 38 000 g/m3 e. 5.79 mg/mm3 f. 1.1 (g/mL 21. An industrial chemical reaction is run for 30.0 h and produces 648.0 kg of product. What is the average rate of product production in the stated units? a. grams per minute b. kilograms per day c. milligrams per millisecond 22. What is the speed of a car in meters per second when it is moving at 100. km/h? 23. A heater gives off energy as heat at a rate of 330 kJ/min. What is the rate of energy output in kilocalories per hour? (1 cal = 4.184 J) 24. The instructions on a package of fertilizer tell you to apply it at the rate of 62 g/m2. How much fertilizer in kilograms would you need to apply to 1.0 ha? (1 ha = 10 000 m2) 25. A water tank leaks water at the rate of 3.9 mL/h. If the tank is not repaired, what volume of water in liters will it leak in a year? Show your setup for solving this. Hint: Use one conversion factor to convert hours to days and another to convert days to years, and assume that one year has 365 days. 26. A nurse plans to give flu injections of 50 (L each from a bottle containing 2.0 mL of vaccine. How many doses are in the bottle? Name Class Date Original content Copyright by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor. Holt ChemFile: Problem-Solving Workbook  PAGE 1 Conversions r s N O p q E F YZMN56EF`aopxy~GH`a#+\^Ƶ hSaJhS0JmHnHu hS0JjhS0JU hSCJ hS\hSCJaJ jmhS jmhSOJQJ^J hSH*hSAa{7 L d  + H u ' E f | W gdSgdSgdS ?ps Ru$OE{$igdSgdS2@PZe)7GSbq~/DbG0gdSgdS^,&P/ =!"#L$8%*666666666vvvvvvvvv666666>666666666666666666666666666666666666666666666666hH6666666666666666666666666666666666666666666666666666666666666666666666666662 0@P`p2( 0@P`p 0@P`p 0@P`p 0@P`p 0@P`p 0@P`p8XV~ OJPJQJ_HmH nH sH tH V`V O>Normal d1$$CJOJPJQJ^J_HmH sH tH DA`D Default Paragraph FontRiR Table Normal4 l4a (k ( No List ^o^ O> 01-A headd@@7$8$9DH$5B*CJOJQJph/ O>82-title continuedGd%d&d7$8$9DH$OP^B*CJOJQJphZ/Z O> 82-continued*6>*@B*CJEHH*OJQJRHdph.)`!. 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