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8- Bromine (Br) has two isotopes, with masses of 78.92 and 80.92 amu. The natural abundance of the lighter isotope, if the average atomic mass of bromine is 79.90 amu is

8- Bromine (Br) has two isotopes, with masses of 78.92 and 80.92 amu. The natural abundance of the lighter isotope, if the average atomic mass of bromine is 79.90 amu is

Introductory Chemistry: A Foundation
Introductory Chemistry: A Foundation
9th Edition
ISBN:9781337399425
Author:Steven S. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Donald J. DeCoste
Chapter8: Chemical Composition
Section: Chapter Questions
Problem 87AP: A binary compound of magnesium and nitrogen is analyzed, and 1.2791 g of the compound ¡s found to...
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8- Bromine (Br) has two isotopes, with masses of 78.92 and 80.92 amu. The natural abundance of the lighter isotope, if the average atomic mass of bromine is 79.90 amu is 9- An unknown compound is composed of C, H, and O. A 0.1005 g sample of this compound is combusted, producing 0.2829 g of CO, and 0.1159 g of H,0 The empirical formula of the compound is 10- A 1.056 g of a metal carbonate MCO,(s), containing an unknown metal M, were heated to give the metal oxide and 0.376 g CO,. MCO, (s) + heat ®MO(s) + CO,(g) What is the identity of the metal M?.... 11- The net ionic equation for the reaction of nitric acid with Lithium hydroxide is Consider the unbalanced reaction: Al + 02 Al,0,
Transcribed Image Text:8- Bromine (Br) has two isotopes, with masses of 78.92 and 80.92 amu. The natural abundance of the lighter isotope, if the average atomic mass of bromine is 79.90 amu is 9- An unknown compound is composed of C, H, and O. A 0.1005 g sample of this compound is combusted, producing 0.2829 g of CO, and 0.1159 g of H,0 The empirical formula of the compound is 10- A 1.056 g of a metal carbonate MCO,(s), containing an unknown metal M, were heated to give the metal oxide and 0.376 g CO,. MCO, (s) + heat ®MO(s) + CO,(g) What is the identity of the metal M?.... 11- The net ionic equation for the reaction of nitric acid with Lithium hydroxide is Consider the unbalanced reaction: Al + 02 Al,0,
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