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23 January, 22:02

On another planet, the isotopes of titanium have the following natural abundances.

a. Isotope 46Ti Abundance 70.900% Mass (amu) 45.95263

b. Isotope 48Ti Abundance 10.000% Mass (amu) 47.94795

c. Isotope 50Ti Abundance 19.100% Mass (amu) 49.94479

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

e. I got 46.9 amu but it is wrong.

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  1. 23 January, 22:08
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    Average atomic mass = 46.91466 amu

    Explanation:

    Step 1: Data given

    Isotopes of titanium

    46Ti = 70.900% ⇒ 45.95263 amu

    48Ti = 10.000 % ⇒ 47.94795 amu

    50Ti = 19.100 % ⇒ 49.94479 amu

    Step 2: Calculate the average atomic mass of titanium

    Average atomic mass = 0.7090 * 45.95263 + 0.10 * 47.94795 + 0.1910 * 49.94479

    Average atomic mass = 46.91466 amu
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