Verified answer

- Relative atomic mass = percentage x molar mass

--> (22.60 /100 ) x 70 = 15.82

--> (25.45/100 ) x 72 = 18.324

--> (36.73/100 ) x 74 = 27.1802

--> (15.22/100 ) x 76 = 11.5672

Relative atomic mass is equal to 15. 82 + 18.32 + 27.1802 + 11.5672 =72.8914 not 7289.14

Relative atomic mass is 72.8914

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Relative atomic mass problem?

Please tell me how to calculate the relative atomic mass of this sample of germanium?

^70Ge = Relative abundance: 22.60%

^72Ge = Relative abundance: 25.45%

^74Ge = Relative abundance: 36.73%

^76Ge = Relative abundance: 15.22%