Using the atomic masses and relative abundance of the isotopes of nitrogen given below, determine the average atomic mass of nitrogen.

N-14: 14.003 amu; 99.63%

N-15: 15.000 amu; 0.37%

A) 14.003 amu

B) 14.007 amu

C) 14.506 amu

D) 15.000 amu

Question

Elliott

27 June, 01:40

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Answers (1)

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Ian · Answer 1

Amm = (%*mass1 + %*mass2) / 100 just put the known values (99.63*14.003+0.37*15) / 100 = 14.007

Using the atomic masses and relative abundance of the isotopes of nitrogen given below, determine the average atomic mass of nitrogen.N-14: 14.003 amu; 99.63%N-15: 15.000 amu; 0.37%A) 14.003 amuB) 14.007 amuC) 14.506 amuD) 15.000 amu