Textbook Question
(c) If an automobile is able to travel 400 km on 47.3 L of gasoline, what is the gas mileage in miles per gallon?
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Ch.1 - Introduction: Matter, Energy, and Measurement
Brown14th EditionChemistry: The Central ScienceISBN: 9780134414232
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Table of contents
- Ch.1 - Introduction: Matter, Energy, and Measurement177
- Ch.2 - Atoms, Molecules, and Ions231
- Ch.3 - Chemical Reactions and Reaction Stoichiometry216
- Ch.4 - Reactions in Aqueous Solution189
- Ch.5 - Thermochemistry175
- Ch.6 - Electronic Structure of Atoms168
- Ch.7 - Periodic Properties of the Elements150
- Ch.8 - Basic Concepts of Chemical Bonding177
- Ch.9 - Molecular Geometry and Bonding Theories200
- Ch.10 - Gases179
- Ch.11 - Liquids and Intermolecular Forces113
- Ch.12 - Solids and Modern Materials154
- Ch.13 - Properties of Solutions157
- Ch.14 - Chemical Kinetics199
- Ch.15 - Chemical Equilibrium128
- Ch.16 - Acid-Base Equilibria164
- Ch.17 - Additional Aspects of Aqueous Equilibria163
- Ch.18 - Chemistry of the Environment105
- Ch.19 - Chemical Thermodynamics164
- Ch.20 - Electrochemistry171
- Ch.21 - Nuclear Chemistry122
- Ch.22 - Chemistry of the Nonmetals82
- Ch.23 - Transition Metals and Coordination Chemistry79
- Ch.24 - The Chemistry of Life: Organic and Biological Chemistry16
Brown14th EditionChemistry: The Central ScienceISBN: 9780134414232Not the one you use?Change textbook
Chapter 1, Problem 60a
(a) If an electric car is capable of going 225 km on a single charge, how many charges will it need to travel from Seattle, Washington, to San Diego, California, a distance of 1257 mi, assuming that the trip begins with a full charge?
Verified step by step guidance1
Convert the distance from miles to kilometers using the conversion factor: 1 mile = 1.60934 kilometers.
Calculate the total distance in kilometers by multiplying 1257 miles by the conversion factor.
Determine how many full charges are needed by dividing the total distance in kilometers by the distance the car can travel on a single charge (225 km).
Since the number of charges must be a whole number, round up to the nearest whole number if necessary.
The result will give you the total number of charges needed for the trip.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Unit Conversion
Unit conversion is the process of converting a quantity expressed in one unit to another unit. In this question, the distance from Seattle to San Diego is given in miles, while the electric car's range is in kilometers. To solve the problem, it is essential to convert miles to kilometers using the conversion factor that 1 mile is approximately 1.60934 kilometers.
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Conversion Factors
Distance and Range Calculation
Understanding the relationship between distance, range, and the number of charges is crucial. The range of the electric car indicates how far it can travel on a single charge. By dividing the total distance of the trip by the car's range, one can determine how many full charges are needed to complete the journey, accounting for the initial full charge.
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02:47Buffer Range Calculation
Rounding Up for Practicality
In practical scenarios, when calculating the number of charges needed, it is important to round up to the nearest whole number. This is because even if the calculation suggests a fraction of a charge, the car cannot take a partial charge; thus, any remaining distance after the last full charge would require an additional charge to complete the trip.
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Related Practice
Textbook Question
(d) In March 1989, the Exxon Valdez ran aground and spilled 240,000 barrels of crude petroleum off the coast of Alaska. One barrel of petroleum is equal to 42 gal. How many liters of petroleum were spilled?
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Textbook Question
(b) The recommended adult dose of Elixophyllin®, a drug used to treat asthma, is 6 mg/kg of body mass. Calculate the dose in milligrams for a 185-lb person.
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Textbook Question
(d) When the coffee is brewed according to directions, a pound of coffee beans yields 50 cups of coffee (4 cups = 1 qt). How many kg of coffee are required to produce 200 cups of coffee?
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Textbook Question
The density of air at ordinary atmospheric pressure and25 C is 1.19 g/L. What is the mass, in kilograms, of the air ina room that measures 4.5 m * 5.0 m * 2.5 m?
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