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Vikentia [17]
3 years ago
10

Calculate the atomic mass of titanium. The five titanium isotopes have atomic masses and relative abundances of 45.953 amu (8.00

%), 46.952 amu (7.30%), 47.948 amu (73.80%), 48.948 amu (5.50%), and 49.945 amu (5.40%).
Chemistry
1 answer:
aniked [119]3 years ago
4 0

The atomic mass of titanium is 47.88 u.

The average atomic mass of Ti is the <em>weighted average</em> of the atomic masses of its isotopes.

We multiply the atomic mass of each isotope by a number representing its relative importance (i.e., its % abundance).

Thus,  

0.0800 × 45.953 u =  3.676 u

0.0730 × 46.952 u =  3.427 u

0.7380 × 47.948 u = 35.386 u

0.0550 × 48.948 u =  2.692 u

0.0540 × 49.945 u =<u>  2.697 u </u>

_________TOTAL = 47.88 u


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