H. Ex: Isotopes of Boron: Boron contains 10B (10.0129g/mol) and 11B. 1°B is 19.91% abundant. Based on the average molar mass of boron from the periodic table, calculate the molar mass of 11B.

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H. Ex: Isotopes of Boron: Boron contains 10B (10.0129g/mol) and
11B. 10B is 19.91% abundant. Based on the average molar mass of boron from
the periodic table, calculate the molar mass of 11B.
Transcribed Image Text:H. Ex: Isotopes of Boron: Boron contains 10B (10.0129g/mol) and 11B. 10B is 19.91% abundant. Based on the average molar mass of boron from the periodic table, calculate the molar mass of 11B.
Expert Solution
Step 1

given, molar mass of 10B = 10.0129 g/mol

let the molar mass of 11B = x g/mol

abundance of 10B = 19.91%

abundance of 11B = (100-19.91)% = 80.09%

 

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