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 109
When an irregularly shaped chunk of silicon weighing 8.763 g was placed in a graduated cylinder containing 25.00 mL of water, the water level in the cylinder rose to 28.76 mL. What is the density of silicon in g/cm3?
Verified step by step guidance1
Calculate the volume of the silicon chunk by subtracting the initial water volume from the final water volume. Use the formula: \( V_{\text{silicon}} = V_{\text{final}} - V_{\text{initial}} \).
Convert the volume of the silicon from milliliters to cubic centimeters (cm3), noting that 1 mL is equivalent to 1 cm3.
Use the mass of the silicon chunk given in the problem.
Calculate the density of the silicon using the formula: \( \text{Density} = \frac{\text{Mass}}{\text{Volume}} \).
Express the density in grams per cubic centimeter (g/cm3).
Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Density
Density is defined as the mass of an object divided by its volume, typically expressed in grams per cubic centimeter (g/cm³). It is a physical property that helps identify substances and can be calculated using the formula: density = mass/volume. In this question, the density of silicon can be determined by measuring the mass of the silicon chunk and the volume of water it displaces.
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01:56
Density Concepts
Volume Displacement
Volume displacement is a method used to measure the volume of an irregularly shaped object by observing the change in liquid level when the object is submerged. According to Archimedes' principle, the volume of water displaced by the object is equal to the volume of the object itself. In this case, the increase in water level from 25.00 mL to 28.76 mL indicates the volume of the silicon chunk.
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02:35Constant-Volume Calorimetry
Measurement Units
Understanding measurement units is crucial in chemistry, as it ensures accurate calculations and conversions. In this problem, mass is measured in grams (g) and volume in milliliters (mL), which can be directly converted to cubic centimeters (cm³) since 1 mL is equivalent to 1 cm³. This knowledge is essential for calculating density correctly, as both mass and volume must be in compatible units.
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02:52Units of Radiation Measurement
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 large tanker truck for carrying gasoline has a capacity of 3.4⨉104 L. (a) What is the tanker's capacity in gallons?
860
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Textbook Question
A 1.0-ounce piece of chocolate contains 15 mg of caffeine, and a 6.0-ounce cup of regular coffee contains 105 mg of caffeine. How much chocolate would you have to consume to get as much caffeine as you would from 2.0 cups of coffee?
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Textbook Question
A large tanker truck for carrying gasoline has a capacity of 3.4⨉104 L. (b) If the retail price of gasoline is \$3.00 per gallon, what is the value of the truck's full load of gasoline?
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