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22 votes
22 votes
Calculate the average atomic mass for the unknown element. Round to

TWO decimal places.

Isotope
unk-39
unk-41

Relative abundance
93.12 %
6.88%

Atomic Mass
38.964 amu
40.962 amu

User Lior Kogan
by
3.0k points

1 Answer

22 votes
22 votes

Answer: 39.13

Explanation: 39 x 93.12%=36.31

41 x 6.88%= 2.82

2.82+36.31= 39.13

User Amna
by
2.7k points