교과서 질문
The molecular formula of aspartame, the artificial sweetener marketed as NutraSweet®, is C14H18N2O5. (a) What is the molar mass of aspartame?
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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
3장, 문제 40c
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?
검증된 단계별 안내1
Convert the mass of aspartame from milligrams to grams by using the conversion factor: 1 mg = 0.001 g.
Calculate the molar mass of aspartame (C_{14}H_{18}N_{2}O_{5}) by adding the atomic masses of all the atoms in the formula: 14 carbon atoms, 18 hydrogen atoms, 2 nitrogen atoms, and 5 oxygen atoms.
Use the molar mass to convert the mass of aspartame in grams to moles by dividing the mass in grams by the molar mass.
Use Avogadro's number (6.022 \(\times\) 10^{23} molecules/mol) to convert the number of moles of aspartame to the number of molecules by multiplying the moles by Avogadro's number.
The result from the previous step gives the number of molecules of aspartame in 1.00 mg.
비슷한 문제에 대한 검증된 영상 답변:
이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.
영상 길이:
2m주요 개념
질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.
Molecular Formula
A molecular formula represents the number and types of atoms in a molecule. For aspartame, C14H18N2O5 indicates it contains 14 carbon atoms, 18 hydrogen atoms, 2 nitrogen atoms, and 5 oxygen atoms. Understanding the molecular formula is essential for calculating the molar mass and determining the number of molecules in a given mass.
추천 영상:
가이드 코스
02:08
Determining Molecular Formulas
Molar Mass
The molar mass is the mass of one mole of a substance, typically expressed in grams per mole (g/mol). To find the molar mass of aspartame, one must sum the atomic masses of all atoms in its molecular formula. This value is crucial for converting between mass and the number of molecules using Avogadro's number.
추천 영상:
가이드 코스
02:11Molar Mass Concept
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 for the conversion between the mass of a substance and the number of molecules. In the context of aspartame, it helps determine how many molecules are present in a specified mass, such as 1.00 mg.
추천 영상:
가이드 코스
02:11Avogadro's Law
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