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Bromine has two naturally occurring isotopes. Bromine-79 has a mass of 78.918 amu and is 50.69% abundant. Using the atomic mass reported on the periodic table, determine the mass of bromine-81, the other isotope of bromine.

Respuesta :

The branch of science which deals with chemicals and bonds is called chemistry.

The correct answer is 81amu.

All the value is given in the question.

For molar mass we have to multiply the atomic number by the percentage it is present.

[tex](78.918*50.69) + (x*49.31)=79.904[/tex]

here, x is the mass of Br-81

After solving the equation.

[tex]49.31x=79.904-40.0[/tex]

The value of x get is:-

[tex]x=\frac{39.904}{49.31}[/tex]

hence, the atomic mass is 80.92476171.

For more information, refer to the link:-

https://brainly.com/question/19524691

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