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Chemistry, 17.10.2020 08:01 ttglilrob

An mempo com presentation ANNE Question 5 5 A sample of the element Ja has 76.3% Jo-126 and 23.7% Jq-128. What is the average atomic mass of Jq?
A 125.474 amu
B. 126.895 amu
c127 251 amu
D. 127.504 amu
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