Jahiem C.
asked • 01/30/21I need help with chemistry
Naturally occurring silver is composed of two isotopes: Ag-107 is 51.35% with a mass of 106.905092 amu, and the rest is Ag-109 with a mass of 108.9044757 amu. Calculate the average atomic mass of silver.
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1 Expert Answer
Hello, Jahiem,
We want a weighted average of the two isotopes. Multiply the atomic mass of each by it's percentage to arrive at the contribution of that isotope to the total weighted average atomic mass. Add them together to obtain 107.9 amu.(with 4 sig figs).
Bob
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Virginia C.
Hi. Very similar question to that chromium one. Just two components and not four. You should be able to calculate the other percent and use it.01/30/21