Domanda del libro di testo
The molecular formula of allicin, the compound responsible for the characteristic smell of garlic, is C6H10OS2. (b) How many moles of allicin are present in 5.00 mg of this substance?
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Ch.3 - Chemical Reactions and Reaction Stoichiometry
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.3 - Chemical Reactions and Reaction StoichiometryProblema 40a
Brown 15th EditionCh.3 - Chemical Reactions and Reaction StoichiometryProblema 40aCapitolo 3, Problema 40a
The molecular formula of aspartame, the artificial sweetener marketed as NutraSweet®, is C14H18N2O5. (a) What is the molar mass of aspartame?
Guida verificata passo dopo passo1
Identify the elements present in aspartame: carbon (C), hydrogen (H), nitrogen (N), and oxygen (O).
Determine the number of each type of atom in the molecular formula: C_{14}H_{18}N_{2}O_{5}.
Find the atomic mass of each element from the periodic table: C = 12.01 g/mol, H = 1.01 g/mol, N = 14.01 g/mol, O = 16.00 g/mol.
Calculate the total mass contributed by each element by multiplying the atomic mass by the number of atoms: (14 \(\times\) 12.01) for carbon, (18 \(\times\) 1.01) for hydrogen, (2 \(\times\) 14.01) for nitrogen, and (5 \(\times\) 16.00) for oxygen.
Add the total masses of all elements to find the molar mass of aspartame.
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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). It is calculated by summing the atomic masses of all the atoms in a molecular formula. For aspartame, the molar mass can be determined by adding the contributions from carbon (C), hydrogen (H), nitrogen (N), and oxygen (O) based on their respective quantities in the formula C14H18N2O5.
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02:11
Molar Mass Concept
Atomic Mass
Atomic mass is the weighted average mass of an element's isotopes, measured in atomic mass units (amu). Each element has a specific atomic mass that can be found on the periodic table. For calculating molar mass, the atomic masses of carbon, hydrogen, nitrogen, and oxygen are used to find the total mass of aspartame by multiplying the atomic mass of each element by the number of times it appears in the molecular formula.
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02:19Atomic Mass
Molecular Formula
A molecular formula represents the number and type of atoms in a molecule, providing insight into its composition. It differs from an empirical formula, which shows the simplest ratio of elements. In the case of aspartame, the molecular formula C14H18N2O5 indicates that the molecule contains 14 carbon atoms, 18 hydrogen atoms, 2 nitrogen atoms, and 5 oxygen atoms, which is essential for calculating its molar mass.
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02:08Determining Molecular Formulas
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Domanda del libro di testo
The molecular formula of aspartame, the artificial sweetener marketed as NutraSweet®, is C14H18N2O5. (c) How many molecules of aspartame are present in 1.00 mg of aspartame?
1173
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Domanda del libro di testo
The molecular formula of allicin, the compound responsible for the characteristic smell of garlic, is C6H10OS2. (c) How many molecules of allicin are in 5.00 mg of this substance?
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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
The molecular formula of aspartame, the artificial sweetener marketed as NutraSweet®, is C14H18N2O5. (d) How many hydrogen atoms are present in 1.00 mg of aspartame?
1025
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Domanda del libro di testo
The molecular formula of allicin, the compound responsible for the characteristic smell of garlic, is C6H10OS2. (d) How many S atoms are present in 5.00 mg of allicin?
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