Chemistry: The Molecular Nature of Matter and Change 7th Edition

Published by McGraw-Hill Education
ISBN 10: 007351117X
ISBN 13: 978-0-07351-117-7

Chapter 12 - Problems: 12.138

Answer

3.57 * 10^-8

Work Step by Step

one million A = 10^-8cm so.. 1cm³ x (4 atoms / (5.43cm)³) = __ atoms *** b *** if that ppm skill one million atom P consistent with 10^6 atoms Si.. then.. 1cm³ x (4 atoms Si / (5.43cm)³) x (one million atom P / 10^6 atoms Si) x (one million mole P / 6.022x10^23 atoms P) x (__g P / mole P) = __ g P 1cm³ x (4 atoms / (5.43x10^-8 cm)³) = __ atoms and.. 1cm³ x (4 atoms Si / (5.43x10^-8 cm)³) x (one million atom P / 10^6 atoms Si) x (one million mole P / 6.022x10^23 atoms P) x (__g P / mole P) = __ g P
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