Gallium (Z = 31) has only two naturally occurring isotopes: 69Ga with a mass of 68.9256 amu and 71Ga with a mass of 70.9247 amu. What are the percent abundances of the two isotopes of gallium?

asked by @christellec4 • 10 months ago • Chemistry • 5 pts
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1 answer

68.9256 x + 70.9247 (1-x) = 69.7231

Solver for X and multiply by 100% to go to %.

Ga (69)= 60.107%

Ga(71) = 39.893%

answered by @nikaa18 • 10 months ago
  • Thanks for answering! Dasha commented 10 months ago
  • where did you get 69.7231 from? Angela commented 10 months ago
  • nevermind! Angela commented 10 months ago