Chem 103 Final Exam (Chemistry Final Questions Portage)

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Chem 103 Final Exam (Chemistry Final Questions Portage)

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Exam 1 Question 1 1. Convert 1005.3 to exponential form and explain your answer. 2. Convert 4.87 x 10-6 to ordinary form and explain your answer. 1. Convert 1005.3 = larger than 1 = positive exponent, move decimal 3 places = 1.0053 x 103 2. Convert 4.87 x 10-6 =negative exponent =smaller than 1, move decimal 6 places = 0.00000487 Question 2 Using the following information, do the conversions shown below, showing all work: 1 ft = 12 inches 1 pound = 16 oz 1 gallon = 4 quarts 1 mile = 5280 feet 1 ton = 2000 pounds 1 quart = 2 pints kilo (= 1000) milli (= 1/1000) centi (= 1/100) deci (= 1/10) 1. 25.6 mg = ? grams 2. 1.5 gal = ? qts 1. 25.6 mg x 1 g / 1000 mg = 0.0256 grams 2. 1.5 gal x 4 qts / 1 gal = 6.0 qts Question 3

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