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Chemistry 11 Online
OpenStudy (savanamonsche):

Nitrogen (N) is made up of 99.632% 14N and 0.368% 15N. The atomic mass of 14N is 14.003 amu. The atomic mass if 15N is 15.000 amu. What is the average atomic mass of nitrogen? A: 14.0 amu B: 15.50 amu C: 14.006amu D: 15.00 amu (The big numbers in front of the N's are supposed to be exponents)

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