Question #fe104

1 Answer
Kathryn Bell
Nov 1, 2017

Divide the oxygen-16 mass by 1.06632

Explanation:

It may be helpful to look at this algebraically.

Let the mass of nitrogen-15 #= x#

As the mass of nitrogen -15 is 1.06632 times bigger than the mass of oxygen-16:
#1.06632 xx x = 15.9949#

Now you just rearrange to calculate #x#:
#15.9949/1.06632 = x#

So the mass of nitrogen-15 is:
#x = 15.0001#

Hope that helps

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