Silver Has Two Stable Isotopes with Masses of 106

question 13

Multiple Choice

Silver has two stable isotopes with masses of 106.90509 amu and 108.9047 amu.The average molar mass of silver is 107.868 amu.What is the percent abundance of each isotope?

• A) 50.0% Ag-107 and 50.0% Ag-109
• B) 51.8% Ag-107 and 48.2% Ag-109
• C) 55.4% Ag-107 and 44.6% Ag-109
• D) 48.2% Ag-107 and 51.8% Ag-109
• E) 44.6% Ag-107 and 55.4% Ag-109

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