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For the following questions determine the percent abundance of each isotope. The periodic table is NOT needed for these questions and may even confuse you. Ideally you would use the algebra method shown in the course but if you find that confusing you can memorize the following formulas instead. % of smaller isotope mass larger isotope average mass mass larger isotope-mass smaller isotope x100% % of larger isotope = 100% - % of smaller isotope a) Oxygen - 16 and Oxygen 18 with an average atomic mass of 16.2 18-16.2 * 100%- 110 Of 18-16 b) An element has two isotopes "X and $4X, with mass numbers of 52.0 and 54.0 respectively. The relative atomic mass is 53.5.

For the following questions determine the percent abundance of each isotope. The periodic table is NOT needed for these questions and may even confuse you. Ideally you would use the algebra method shown in the course but if you find that confusing you can memorize the following formulas instead. % of smaller isotope mass larger isotope average mass mass larger isotope-mass smaller isotope x100% % of larger isotope = 100% - % of smaller isotope a) Oxygen - 16 and Oxygen 18 with an average atomic mass of 16.2 18-16.2 * 100%- 110 Of 18-16 b) An element has two isotopes "X and $4X, with mass numbers of 52.0 and 54.0 respectively. The relative atomic mass is 53.5.

Chemistry: The Molecular Science
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter2: Chemical Compounds
Section2.3: Isotopes And Average Atomic Mass
Problem 2.4CE
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For the following questions determine the percent abundance of each isotope. The periodic table is NOT needed for these questions and may even confuse you. Ideally you would use the algebra method shown in the course but if you find that confusing you can memorize the following formulas instead. % of smaller isotope mass larger isotope - average mass x100% mass larger isotope-mass smaller isotope % of larger isotope = 100% - % of smaller isotope %3D a) Oxygen - 16 and Oxygen 18 with an average atomic mass of 16.2 of 18-16.2 *100%-110 of 18-116 b) An element has two isotopes "X and $"X, with mass numbers of 52.0 and 54.0 respectively. The relative atomic mass is 53.5.
Transcribed Image Text:For the following questions determine the percent abundance of each isotope. The periodic table is NOT needed for these questions and may even confuse you. Ideally you would use the algebra method shown in the course but if you find that confusing you can memorize the following formulas instead. % of smaller isotope mass larger isotope - average mass x100% mass larger isotope-mass smaller isotope % of larger isotope = 100% - % of smaller isotope %3D a) Oxygen - 16 and Oxygen 18 with an average atomic mass of 16.2 of 18-16.2 *100%-110 of 18-116 b) An element has two isotopes "X and $"X, with mass numbers of 52.0 and 54.0 respectively. The relative atomic mass is 53.5.
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