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Introductory Chemistry (MasteringChemistry) | 6th Edition | ISBN: 9780134302386 | Authors: Nivaldo J. Tro ISBN: 9780134302386 2037

Solution for problem 3 Chapter 1

Introductory Chemistry (MasteringChemistry) | 6th Edition

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Introductory Chemistry (MasteringChemistry) | 6th Edition | ISBN: 9780134302386 | Authors: Nivaldo J. Tro

Introductory Chemistry (MasteringChemistry) | 6th Edition

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Problem 3

What do chemists try to do? How do they understand the natural world?

Step-by-Step Solution:
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Chem 131 notes, week 3 Section 3.1 || Atomic mass - The mass of an atom depends on the numbers of protons, neutrons, and electrons it contains - Determining the mass of an atom is impossible, it must be obtained relative to another experimentally • The first step is to assign a value to the mass of one atom of a given element so that it can be used as a standard - Atomic mass: the mass of an atom in atomic mass units (amu) - One atomic mass unit: a mass exactly equal to one-twelfth the mass of one carbon-12 atom • Carbon-12 is the carbon isotope which contains 6 protons and 6 neutrons • The atomic mass of a carbon-12 atom is set at 12 amu Average atomic mass - Most naturally occurring elements have more than one isotope, meaning that when the atomic mass is measured, it must be the average mass of the naturally occurring mixture of isotopes • EXAMPLE natural abundance of carbon-12 and carbon-13 are 98.90% and 1.10%. The atomic mass of carbon-13 is 13.00335 amu.Average atomic mass of natural carbon = (0.9890)(12.00000 amu) + (0.0110)(13.00335) = 12.01 amu • Note that the percentages were converted to decimal values Section 3.2 ||Avogadro’s number and the molar mass of an element - Mole (mol): the amount of a substance that contains as many elementary entities (atoms, molecules, or other particles) as there are atoms in exactly 12 g of the carbon-12 isotope - The actual number of atoms in 12 g of carbon-12 is determined experimentally 23 - Avogadro’s number

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Chapter 1, Problem 3 is Solved
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Textbook: Introductory Chemistry (MasteringChemistry)
Edition: 6
Author: Nivaldo J. Tro
ISBN: 9780134302386

Introductory Chemistry (MasteringChemistry) was written by Aimee Notetaker and is associated to the ISBN: 9780134302386. Since the solution to 3 from 1 chapter was answered, more than 202 students have viewed the full step-by-step answer. The full step-by-step solution to problem: 3 from chapter: 1 was answered by Aimee Notetaker, our top Chemistry solution expert on 04/04/22, 10:38AM. This textbook survival guide was created for the textbook: Introductory Chemistry (MasteringChemistry), edition: 6. The answer to “?What do chemists try to do? How do they understand the natural world?” is broken down into a number of easy to follow steps, and 13 words. This full solution covers the following key subjects: . This expansive textbook survival guide covers 19 chapters, and 2612 solutions.

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