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lys-0071 [83]
3 years ago
14

Determina la masa atómica promedio del cobre teniendo en cuenta que este elemento se encuentra en la naturaleza en forma de dos

isótopos: el 65Cu con una abundancia del 69,09% y una masa de 62,9298 u.M.A.; y el 63Cu con una abundancia del 30,91% y una masa de 64,9278 u.M.A.
Chemistry
1 answer:
beks73 [17]3 years ago
6 0

Answer:

63.5474U.M.A. es la masa atómica promedio del cobre

Explanation:

La masa atómica promedio de un átomo es definida como la suma de las masas de los isótopos multiplicada por su abundancia. Para el caso del cobre que tiene dos isótopos:

Cu = Masa 65Cu*Abundancia + Masa 63Cu*Abundancia

Reemplazando con los valores dados en el problema:

Cu = 62.9298U.M.A.*0.6909 + 64.9278U.M.A.*0.3091

Cu = 63.5474U.M.A. es la masa atómica promedio del cobre

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