Textbook Question
Answer the following questions. (c) A certain type of wood has a density of 0.40 g/cm3. What is the mass of 1.0 cord of this wood in kg, where 1 cord is 128 cubic feet of wood?
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Ch.1 - Chemical Tools: Experimentation & Measurement
McMurry8th EditionChemistryISBN: 9781292336145
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Table of contents
- Ch.1 - Chemical Tools: Experimentation & Measurement143
- Ch.2 - Atoms, Molecules & Ions134
- Ch.3 - Mass Relationships in Chemical Reactions149
- Ch.4 - Reactions in Aqueous Solution157
- Ch.5 - Periodicity & Electronic Structure of Atoms92
- Ch.6 - Ionic Compounds: Periodic Trends and Bonding Theory73
- Ch.7 - Covalent Bonding and Electron-Dot Structures47
- Ch.8 - Covalent Compounds: Bonding Theories and Molecular Structure51
- Ch.9 - Thermochemistry: Chemical Energy104
- Ch.10 - Gases: Their Properties & Behavior138
- Ch.11 - Liquids & Phase Changes43
- Ch.12 - Solids and Solid-State Materials56
- Ch.13 - Solutions & Their Properties98
- Ch.14 - Chemical Kinetics79
- Ch.15 - Chemical Equilibrium107
- Ch.16 - Aqueous Equilibria: Acids & Bases94
- Ch.17 - Applications of Aqueous Equilibria125
- Ch.18 - Thermodynamics: Entropy, Free Energy & Equilibrium66
- Ch.19 - Electrochemistry130
- Ch.20 - Nuclear Chemistry73
- Ch.21 - Transition Elements and Coordination Chemistry122
- Ch.22 - The Main Group Elements155
- Ch.23 - Organic and Biological Chemistry43
Chapter 1, Problem 111d
Answer the following questions. (d) A particular sample of crude oil has a density of 0.85 g/mL. What is the mass of 1.00 barrel of this crude oil in kg, where a barrel of oil is exactly 42 gallons?
Verified step by step guidance1
Convert the volume of 1 barrel from gallons to milliliters using the conversion factor: 1 gallon = 3,785.41 mL.
Calculate the total volume in milliliters by multiplying 42 gallons by the conversion factor.
Use the density formula, \( \text{Density} = \frac{\text{Mass}}{\text{Volume}} \), to find the mass in grams. Rearrange the formula to \( \text{Mass} = \text{Density} \times \text{Volume} \).
Substitute the density (0.85 g/mL) and the total volume in milliliters into the mass formula to calculate the mass in grams.
Convert the mass from grams to kilograms by dividing the mass in grams by 1,000, since 1 kg = 1,000 g.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Density
Density is defined as mass per unit volume, typically expressed in grams per milliliter (g/mL) or kilograms per cubic meter (kg/m³). It is a crucial property that helps determine how much mass is contained in a given volume of a substance. In this question, the density of crude oil is given as 0.85 g/mL, which will be used to calculate the mass of the oil based on its volume.
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Volume Conversion
Volume conversion involves changing a measurement from one unit to another, which is essential when dealing with different systems of measurement. In this case, the volume of crude oil is given in barrels, and we need to convert it to a compatible unit (milliliters or liters) to use the density for mass calculation. Knowing that 1 barrel equals 42 gallons and that 1 gallon is approximately 3.78541 liters will facilitate this conversion.
Mass Calculation
Mass calculation in chemistry often involves using the formula: mass = density × volume. Once the volume of crude oil is converted to a compatible unit, this formula allows us to find the mass of the oil. The final result should be expressed in kilograms, requiring a conversion from grams if necessary, as the density is initially provided in g/mL.
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Related Practice
Textbook Question
Answer the following questions. (a) An old rule of thumb in cooking says: 'A pint's a pound the world around.' What is the density in g/mL of a sub-stance for which 1 pt = 1 lb exactly?
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Textbook Question
Answer the following questions. (b) There are exactly 640 acres in 1 square mile. How many square meters are in 1 acre?
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Textbook Question
A bag of Hershey's Kisses contains the following information:
Serving size: 9 pieces = 41 g
Calories per serving: 230
Total fat per serving: 13 g
(a) The bag contains 2.0 lbs of Hershey's Kisses. How many Kisses are in the bag?
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Textbook Question
Vinaigrette salad dressing consists mainly of oil and vinegar. The density of olive oil is 0.918 g/cm3, the density of vinegar is 1.006 g/cm3, and the two do not mix. If a certain mixture of olive oil and vinegar has a total mass of 397.8 g and a total volume of 422.8 cm3, what is the volume of oil and what is the volume of vinegar in the mixture?
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Textbook Question
A bag of Hershey's Kisses contains the following information: Serving size: 9 pieces = 41 g Calories per serving: 230 Total fat per serving: 13 g (c) How many Calories are in one Hershey's Kiss?
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