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How can you efficiently determine the number of atoms in a sample of an element? Why is

Introductory Chemistry | 5th Edition | ISBN: 9780321910295 | Authors: Nivaldo J Tro ISBN: 9780321910295 34

Solution for problem 2Q Chapter 6

Introductory Chemistry | 5th Edition

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Introductory Chemistry | 5th Edition | ISBN: 9780321910295 | Authors: Nivaldo J Tro

Introductory Chemistry | 5th Edition

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Problem 2Q

Problem 2Q

How can you efficiently determine the number of atoms in a sample of an element? Why is counting them not an option?

Step-by-Step Solution:

Solution 2Q

Here, we are going to discuss the efficient method of determining the number of atoms in a sample of an element.

Step 1:

We can determine the number of atoms in a sample of an element by using ‘mole concept’. One mole of any species is that quantity in number having a mass equal to its atomic or molecular mass in grams.

The number of particles (atoms, molecules or ions) present in 1 mole of any substance is fixed, with a value of 6.022 × 1023. This is an experimentally obtained value. This number is called the Avogadro Constant or Avogadro Number.

Step 2 of 3

Chapter 6, Problem 2Q is Solved
Step 3 of 3

Textbook: Introductory Chemistry
Edition: 5
Author: Nivaldo J Tro
ISBN: 9780321910295

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How can you efficiently determine the number of atoms in a sample of an element? Why is