Domanda del libro di testo
At least 25 mg of tetrahydrocannabinol (THC), the active ingredient in marijuana, is required to produce intoxication. The molecular formula of THC is C21H30O2. How many molecules?
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Ch.3 - Chemical Reactions and Reaction Stoichiometry
Brown14th EditionChemistry: The Central ScienceISBN: 9780134414232
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TOC.tableOfContents
- 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: 9780134414232Non è quello che usi tu?Cambia libro di testo
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Brown 14th EditionCh.3 - Chemical Reactions and Reaction StoichiometryProblema 43a
Brown 14th EditionCh.3 - Chemical Reactions and Reaction StoichiometryProblema 43aCapitolo 3, Problema 43a
The allowable concentration level of vinyl chloride, C2H3Cl, in the atmosphere in a chemical plant is 2.0×10−6 g/L. How many moles of vinyl chloride in each liter does this represent?
Guida verificata passo dopo passo1
First, identify the molar mass of vinyl chloride, C2H3Cl. To do this, sum the atomic masses of each element in the compound: Carbon (C) = 12.01 g/mol, Hydrogen (H) = 1.008 g/mol, and Chlorine (Cl) = 35.45 g/mol.
Calculate the molar mass of vinyl chloride by adding the masses of each element multiplied by their respective number of atoms in the molecule: Molar mass of C2H3Cl = (2 \(\times\) 12.01) + (3 \(\times\) 1.008) + 35.45 g/mol.
Convert the given concentration from grams per liter to moles per liter using the molar mass. Use the formula: Moles = Mass (g) / Molar Mass (g/mol).
Substitute the allowable concentration (2.0⨉10−6 g/L) and the calculated molar mass into the formula to find the number of moles of vinyl chloride per liter.
This calculation will give you the concentration of vinyl chloride in moles per liter, which represents the number of moles of vinyl chloride in each liter of atmosphere at the chemical plant.
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Molar Mass
Molar mass is the mass of one mole of a substance, typically expressed in grams per mole (g/mol). For vinyl chloride (C2H3Cl), the molar mass can be calculated by summing the atomic masses of its constituent elements: carbon (C), hydrogen (H), and chlorine (Cl). This value is essential for converting between grams and moles, which is necessary for solving the given problem.
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Percorso guidato
02:11
Molar Mass Concept
Concentration
Concentration refers to the amount of a substance (solute) present in a given volume of solution or mixture. In this case, the concentration of vinyl chloride is given in grams per liter (g/L). Understanding how to interpret and manipulate concentration units is crucial for determining the number of moles from the provided mass concentration.
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07:35Calculate Concentration of the Basic Form
Avogadro's Number
Avogadro's number, approximately 6.022 x 10^23, is the number of particles (atoms, molecules, etc.) in one mole of a substance. This constant allows chemists to relate the macroscopic scale of substances (grams, liters) to the microscopic scale (molecules, atoms). In this problem, it will be used to convert the calculated moles of vinyl chloride into the number of molecules if needed.
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Percorso guidato
02:11Avogadro's Law
Pratica correlata
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A sample of glucose, C6H12O6, contains 1.250×1021 carbon atoms. (c) How many moles of glucose does it contain?
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Domanda del libro di testo
A sample of the male sex hormone testosterone, C19H28O2, contains 3.88×1021 hydrogen atoms. (b) How many molecules of testosterone does it contain?
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Domanda del libro di testo
The allowable concentration level of vinyl chloride, C2H3Cl, in the atmosphere in a chemical plant is 2.0⨉10−6 g/L. How many molecules per liter?
Domanda del libro di testo
At least 25 mg of tetrahydrocannabinol (THC), the active ingredient in marijuana, is required to produce intoxication. The molecular formula of THC is C21H30O2. How many moles of THC does this 25 mg represent?
Domanda del libro di testo
A sample of the male sex hormone testosterone, C19H28O2, contains 3.88×1021 hydrogen atoms. (c) How many moles of testosterone does it contain? (d) What is the mass of this sample in grams?
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