Two isotopes of gallium are occur naturally with 69 31 Ga 71 Ga at 39.89% (68.93 amu) and 31 at 60.11% (70.92 amu). Calculate the atomic mass for gallium using the weighted average mass method discussed in the video. Average mass = fill in blank amu SUBMIT

Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
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Chapter2: Atoms, Molecules, And Ions
Section: Chapter Questions
Problem 21QAP: Bromine has two occuring isotopes: 79Br with atomic mass 78.9183 and 81Br with atomic mass 80.9163....
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Two isotopes of gallium are occur naturally with
69
31 Ga
71 Ga
at 39.89% (68.93 amu) and 31
at
60.11% (70.92 amu). Calculate the atomic mass
for gallium using the weighted average mass
method discussed in the video.
Average mass = fill in blank
amu
SUBMIT
Transcribed Image Text:Two isotopes of gallium are occur naturally with 69 31 Ga 71 Ga at 39.89% (68.93 amu) and 31 at 60.11% (70.92 amu). Calculate the atomic mass for gallium using the weighted average mass method discussed in the video. Average mass = fill in blank amu SUBMIT
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