What is the atomic mass of B if 19.9% of all B atoms have a mass of 10.01 amu and 80.1% have a mass of 11.01 amu?

Name: What is the atomic mass of B if 19.9% of all B atoms have a mass of 10.01 amu and 80.1% have a mass of 11.01 amu?
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Quizplus · Accepted Answer

The atomic mass of B can be calculated by taking the weighted average of the masses of its isotopes, which is (0.199 * 10.01 amu) + (0.801 * 11.01 amu) = 1.99199 amu + 8.81801 amu = 10.81 amu.

What Is the Atomic Mass of B If 19