Question

If bromine atom is available in the form of,
79
35Br
(49.7%) and
81
35Br
(50.3%). Calculate
the average atomic mass of bromine atom.

Answer 1

Average at. Mass={(49.7/100)*79}+{(50.3/100)*81}
(497*79)+(503*81/1000)
80006/1000
80.006
The average at. Mass=80

Answer 2

_/\_Hello mate__here is your answer--

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The average atomic mass of bromine

={ (79 x 49.7)+ (81 x 50.3) }/100

= (3926.3 + 4074.3)/100

= 8000.6/100

= 80 u

I hope, this will help you.☺

Thank you______❤

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