7. A fictitious element which we will call dearbornium (Db) is made up of two isotopes. A sample of Db contains 2233 atoms of 292Db and 4026 atoms of 295D.. a) Calculate the percent abundance of each isotope in this sample. Show work and write your answers in the spaces provided. Give the answers to 5 sig.figs. 295 Db = 292 Db = b) If the mass of 292Db is 291.95 amu and that of 295Db is 294.97 amu, what is the average atomic mass of dearbornium? Write the equation and clearly show your work.
7. A fictitious element which we will call dearbornium (Db) is made up of two isotopes. A sample of Db contains 2233 atoms of 292Db and 4026 atoms of 295D.. a) Calculate the percent abundance of each isotope in this sample. Show work and write your answers in the spaces provided. Give the answers to 5 sig.figs. 295 Db = 292 Db = b) If the mass of 292Db is 291.95 amu and that of 295Db is 294.97 amu, what is the average atomic mass of dearbornium? Write the equation and clearly show your work.
Chemistry: An Atoms First Approach
2nd Edition
ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
Publisher:Steven S. Zumdahl, Susan A. Zumdahl
Chapter5: Stoichiometry
Section: Chapter Questions
Problem 23Q: Reference Section 5-2 to find the atomic masses of 12C and 13C, the relative abundance of 12C and...
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