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Sagot :
Answer:
Average atomic mass = 6.94 amu.
Explanation:
Given data:
Average atomic mass = ?
Atomic mass of first isotope = 6.017 amu
Atomic mas off second isotope = 7.018 amu
Abundance of fist isotope = 7.30%
Abundance of second isotope = 92.70%
Solution:
Average atomic mass = (abundance of 1st isotope × its atomic mass) +(abundance of 2nd isotope × its atomic mass) / 100
Average atomic mass = (7.30×6.017)+(92.70×7.018) /100
Average atomic mass = 43.924 + 650.57 / 100
Average atomic mass = 694.494 / 100
Average atomic mass = 6.94 amu.
The average atomic mass is 6.94 amu.
Details required to solve average atomic mass:
The Atomic mass of the first isotope = 6.017 amu
Atomic mas off second isotope = 7.018 amu
The abundance of first isotope = 7.30%
The abundance of second isotope = 92.70%
Calculation of average atomic mass:
Average atomic mass = (abundance of 1st isotope × its atomic mass) +(abundance of 2nd isotope × its atomic mass) / 100
= (7.30×6.017)+(92.70×7.018) /100
= 43.924 + 650.57 / 100
= 694.494 / 100
= 6.94 amu.
Learn more about the mass here: https://brainly.com/question/24743133
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