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Solution: Calculate the atomic mass of gallium if gallium has 2 natura...

Question

Calculate the atomic mass of gallium if gallium has 2 naturally occurring isotopes with the following masses and natural abundances:

Ga-69      68.9256 amu      60.11%

Ga-71      70.9247 amu      39.89%

A) 69.72 amu

B) 69.93 amu

C) 70.00 amu

D) 69.80 amu

E) 70.68 amu