In a sample of silver, 51.84% of the atoms have a mass of 106.905 amu and 48.16% mass of 108.905 amu. What is the atomic mass of silver?

1 Answer
Meave60
Oct 9, 2016

The atomic mass of this sample of silver is 107.9 amu.

Explanation:

The two groups of silver atoms represent two isotopes of silver. To determine the atomic mass of this sample of silver, multiply the mass of each isotope by its percentage as a decimal, and add the results.

#(106.905 "amu"xx0.5184)+(108.905 "amu"xx0.4816)="107.9 amu"#

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