ࡱ>  sbjbj 4sl$Z&&; Y+ Q0(&& : ANSWERS TO CONVERSION FACTOR PROBLEMS Conversion factors can be used to convert units or to convert between equivalent ways of expressing a quantity. The quantity in the problem is multiplied by one or more conversion factors, in which the numerator is equal to the denominator. Since the numerator and denominator of the conversion factor are equal, multiplying by the conversion factor is like multiplying by 1 and thus does not change the value of the original quantity. Use the table of English to Metric equivalents as needed. All answers should be in significant figures! A) Problems with a single conversion factor. 1. How many cm are in 18.9 inches? EMBED Equation.3 = 47.5 cm 2. How many grams are in 0.143 ounces? EMBED Equation.3 B) Problems with two or more conversion factors. 1. How many mL are in 0.037 quarts? EMBED Equation.3 = 35 mL 2. How many grams are in 0.397 pounds (lbs)? EMBED Equation.3 3. How many micrograms are in 6.8 x 10-7 ounces? EMBED Equation.3 C) Using density as a conversion factor. The density of Al is 2.70 g/cm3. Remember, 1 mL = 1 cm3. 1. What is the volume of 0.810 grams of Al? EMBED Equation.3 2. Find the mass in grams of 0.327 liters of Al. EMBED Equation.3 3. Find the volume in liters of 16.2 kg Al. EMBED Equation.3 D) Complex conversions 1. Convert the density of Al to pounds/quart. (Convert one unit at a time. First, convert grams to pounds, and then convert cm3 to quarts.) EMBED Equation.3 2. Convert the density of Al to ounces/in3. 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