AVogadro's numberAvogadro's number = 6.022 * 10231-10تطبق ع هذا القانون ؟لما يجيب سيرة عد د الذرات او الجزيئات أو الأيونات(How many atoms (molecule, ions)ExampleHow many moles of cobalt (Co) atoms are there in 6 * 109 Co aSOLUTIONnumber of atomsMol of Co =Avogadro's number6.022 * 1023* 9660 =ExampleHow many atoms are in 16.3 g of S?SOLUTIONnumber or atomsMol of S =Avogadro's numbermass of S16.3=0.51 molMol of Satomic mass of S32number of atoms0.51 =%3D6.022 * 1023number of atoms = 0.51 * 6.022 * 1023 = 3.067 * 1023 at%3D99

Using Unitary method 6.022 x 1023 atoms of Cobalt are present in one mole of Cobalt 1…

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

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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