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March 30, 2017

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On another planet, the isotopes of titanium have the following natural abundances.
Isotope 46Ti Abundance 70.900% Mass(amu) 45.95263

Isotope 48Ti Abundance 10.000% Mass(amu) 47.94795

Isotope 50Ti Abundance 19.100% Mass(amu) 49.94479

What is the average atomic mass of titanium on that planet?

I got 46.9 amu but it is wrong.

  • Chemistry - ,

    (45.95263*0.7090) + (47.94795*0.10) + (49.9479*0.191) = ?

  • Chemistry - ,

    15.64

  • Chemistry - ,

    i have no idea

  • Chemistry - ,

    You forgot your significant figures.

  • Chemistry - ,

    46.70 amu

  • Chemistry - ,

    .70900 x 45.95263 = 32.580
    .10000 x 49.94479 = 4.7948
    .19100 x 49.94479 = 9.5395
    *(Be aware that these answers must have 5 significant figures)

    32.580 + 4.7948 + 9.5395 = 46.918
    *(Be aware that the final answer must go to 3 decimal places)

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