Introductory Chemistry For Today
8th Edition
ISBN: 9781285644561
Author: Seager
Publisher: Cengage
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At sea, distances are measured in nautical miles and speeds are expressed in knots. 1 nautical mile =6076.12ft 1 knot =1 nautical mi/h (exactly) (a) How many miles are in one nautical mile? (b) How many meters are in one nautical mile? (c) A ship is traveling at a rate of 22 knots. Express the ship's speed in miles per hour.
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(a) How many picometers are there in 1 m? (b) Express6.0 * 103 m using a prefix to replace the power of ten.(c) Use exponential notation to express 4.22 mg in grams.(d) Use decimal notation to express 4.22 mg in grams.
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One cup of olive oil weighs 0.479 lb. What is the mass of 247 mL of olive oil expressed in grams
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She measured the mass of the metal to be 111.2 grams.Then she dropped the metal into a measuring cup and found that it displaced 15.2mL of water.
Calculate the density of the metal.
Density= G/mL
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Aroldis Chapman is a MLB relief pitcher who recorded the fastest pitch in a major league game, which was clocked at 105 mi per hour. What was this speed in m/s? (1 mi = 1.609 km)
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Consider multiplying “26.2” by “16.43.” What would a mathematician say the answer is? What would a scientist say? Justify the scientist’s answer, not merely citing the rule, hut explaining it.
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1.47 A student weighs 10 quarters and finds that their total mass is 56.63 grams. What should she report as the average mass of quarter based on her data?
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1.48 A rock is placed on a balance and its mass is determined as 12.1 g. When the rock is then placed in a graduated cylinder that originally contains 11.3 mL of water, the new volume is roughly 17 rnL. How should the density of the rock be reported?
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