Domanda del libro di testo
(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
Brown15th EditionChemistry: The Central ScienceISBN: 9780137542970
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TOC.tableOfContents
- Ch.1 - Introduction: Matter, Energy, and Measurement146
- Ch.2 - Atoms, Molecules, and Ions200
- Ch.3 - Chemical Reactions and Reaction Stoichiometry176
- Ch.4 - Reactions in Aqueous Solution155
- Ch.5 - Thermochemistry126
- Ch.6 - Electronic Structure of Atoms131
- Ch.7 - Periodic Properties of the Elements126
- Ch.8 - Basic Concepts of Chemical Bonding123
- Ch.9 - Molecular Geometry and Bonding Theories143
- Ch.10 - Gases147
- Ch.11 - Liquids and Intermolecular Forces91
- Ch.12 - Solids and Modern Materials122
- Ch.13 - Properties of Solutions126
- Ch.14 - Chemical Kinetics174
- Ch.15 - Chemical Equilibrium101
- Ch.16 - Acid-Base Equilibria139
- Ch.17 - Additional Aspects of Aqueous Equilibria146
- Ch.18 - Chemistry of the Environment72
- Ch.19 - Chemical Thermodynamics129
- Ch.20 - Electrochemistry142
- Ch.21 - Nuclear Chemistry101
- Ch.22 - Chemistry of the Nonmetals68
- Ch.23 - Transition Metals and Coordination Chemistry66
- Ch.24 - The Chemistry of Life: Organic and Biological Chemistry10
Brown15th EditionChemistry: The Central ScienceISBN: 9780137542970Non è quello che usi tu?Cambia libro di testo
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Brown 15th EditionCh.1 - Introduction: Matter, Energy, and MeasurementProblema 62a
Brown 15th EditionCh.1 - Introduction: Matter, Energy, and MeasurementProblema 62aCapitolo 1, Problema 62a
(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?
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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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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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Percorso guidato
01:56
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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Percorso guidato
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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02:09Total Pressure Example
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Domanda del libro di testo
(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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Domanda del libro di testo
(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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Domanda del libro di testo
(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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