The natural isotopic abundance of 10B is 19.60% and 11B is 80.40%. The exact isotopic masses are 10.13 and 11.009 respectively. Calculate the average atomic mass of boron.
Answers
Answered by
15
Answer:
10.84
Explanation:
To find the average atomic mass of boron we divide the abundances by 100% then multiply with the isotopic masses
We then add the results
The following step should be followed
19.60÷100% = 0.196 %
Next we take
80.40 ÷ 100 % = 0.804 %
We then multiply each of them by their isotopic masses
0.196 × 10.13 = 1.9854
0.804 × 11.009 = 8.851
We then add our final answers to get the average atomic masses that is
1.9854 + 8.851 = 10.84
Answered by
5
Answer:
10.84
The natural isotopic abundance of 10B is 19.60% and 11B is 80.40%. The exact isotopic masses are 10.13 and 11.009 respectively
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