Questions number 42 as a conversion factor.133.33 g AICI31 PmOT6.02 x 1023 formula units1 pmotSubstitute mass AICI3 =133.33 g, and sol= 2.21 x 10-22g AICI3/formula unit3 EVALUATE THE ANSWERThe number of CI- ions is three times the number of Al3+ ions, as predicted. The massof a formula unit of AICI3 can be checked by calculating it in a different way. Divide thesample mass of AICI3 (35.6 g) by the number of formula units contained in the mass(1.61 x 1023 formula units) to obtain the mass of one formula unit. The two answersare the same.APPLICATIONS42. Ethanol (C2H5OH), a domestically produced fuel source, is often blended with gasoline.A sample of ethanol has a mass of 45.6 g.a. How many carbon atoms does the sample contain?b. How many hydrogen atoms are present?c. How many oxygen atoms are present?43. A sample of sodium sulfite (Na2SO3) has a mass of 2.25 g.a. How many Nat ions are present?b. How many SO32- ions are present?C What is the mass in grams of one.formula unit of Na S03?

Given mass of Ethanol (C2H5OH) = 45.6g To determine the number of carbon,hydrogen and oxygen atoms…

42. Ethanol (C2H50H), a domestically produced fuel source, is often blended with gasoline. A sample of ethanol has a mass of 45.6 g. a. How many carbon atoms does the sample contain? b. How many hydrogen atoms are present? c. How many oxygen atoms are present?

42. Ethanol (C2H50H), a domestically produced fuel source, is often blended with gasoline. A sample of ethanol has a mass of 45.6 g. a. How many carbon atoms does the sample contain? b. How many hydrogen atoms are present? c. How many oxygen atoms are present?

World of Chemistry, 3rd edition

3rd Edition

ISBN:9781133109655

Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste

Chapter9: Chemical Quantities

Section: Chapter Questions

Problem 50A

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