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Anit [1.1K]
2 years ago
5

Can somebody help? Do not answer if you don't know.

Chemistry
1 answer:
blondinia [14]2 years ago
5 0

Answer:

10.8amu

Explanation:

Given parameters:

Abundance of B - 10  = 20% = 0.2

Abundance of B - 11  = 80% = 0.8

Unknown:

Atomic mass of Boron = ?

Solution:

The atomic mass of Boron can be can be calculated using the expression below;

 Atomic mass  = (abundance of B - 10 x mass of isotope B - 10 ) +( abundance of  B - 11 x mass of isotope B- 11)

 Atomic mass  = (0.2 x 10) + (0.8 x 11) = 2 + 8.8  = 10.8amu

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Answer:

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