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Example How many moles of cobalt (Co) atoms are there in 6 * 109 Co a SOLUTION number of atoms Mol of Co = = 0.996 * Avogadro's number %3D %3D 6.022 * 1023 Example How many atoms are in 16.3 g of S? SOLUTION number or atoms Mol of S %3D Avogadro's number mass of S 16.3 Mol of S = =0.51 mol %3D atomic mass of S 32 number of atoms 0.51 = 6.022 * 1023 number of atoms = 0.51 * 6.022 * 1023 = 3.067 * 1023 a

Example How many moles of cobalt (Co) atoms are there in 6 * 109 Co a SOLUTION number of atoms Mol of Co = = 0.996 * Avogadro's number %3D %3D 6.022 * 1023 Example How many atoms are in 16.3 g of S? SOLUTION number or atoms Mol of S %3D Avogadro's number mass of S 16.3 Mol of S = =0.51 mol %3D atomic mass of S 32 number of atoms 0.51 = 6.022 * 1023 number of atoms = 0.51 * 6.022 * 1023 = 3.067 * 1023 a

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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AVogadro's number Avogadro's number = 6.022 * 1023 1-10 تطبق ع هذا القانون ؟ لما يجيب سيرة عد د الذرات او الجزيئات أو الأيونات (How many atoms (molecule, ions) Example How many moles of cobalt (Co) atoms are there in 6 * 109 Co a SOLUTION number of atoms Mol of Co = Avogadro's number 6.022 * 1023 * 9660 = Example How many atoms are in 16.3 g of S? SOLUTION number or atoms Mol of S = Avogadro's number mass of S 16.3 =0.51 mol Mol of S atomic mass of S 32 number of atoms 0.51 = %3D 6.022 * 1023 number of atoms = 0.51 * 6.022 * 1023 = 3.067 * 1023 at %3D 99
Transcribed Image Text:AVogadro's number Avogadro's number = 6.022 * 1023 1-10 تطبق ع هذا القانون ؟ لما يجيب سيرة عد د الذرات او الجزيئات أو الأيونات (How many atoms (molecule, ions) Example How many moles of cobalt (Co) atoms are there in 6 * 109 Co a SOLUTION number of atoms Mol of Co = Avogadro's number 6.022 * 1023 * 9660 = Example How many atoms are in 16.3 g of S? SOLUTION number or atoms Mol of S = Avogadro's number mass of S 16.3 =0.51 mol Mol of S atomic mass of S 32 number of atoms 0.51 = %3D 6.022 * 1023 number of atoms = 0.51 * 6.022 * 1023 = 3.067 * 1023 at %3D 99
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