Help pl Nitrogen has two isotopes. Nitrogen-14 is 98.76% abundant and nitrogen-15 is 1.24%
abundant. What is the average atomic mass of nitrogen? Show work!
(These are not the actual abundance amounts, they were altered for practice. Use the simulation to try to match the
percentages is you need help)

The percent abundance of N-15 is 0.6403%.

Explanation:

The atomic mass of an element is a weighted average of its isotopes in which the sum of the abundance of each isotope is equal to 1 or 100%.

Formula for Calculating Isotope Percent Abundance

(x)(mass)+(1−x)(mass)=100%

Explanation:

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2fe + 3h2so4 -> fe2(so4)3 + 3h2

it is necessary to balance equations in order to get the proper amount of reactants as well as products in order not to make a miscalculation.

you cannot change the subscripts as that would change the substance itself. for instance, diatomic elements such as h2 only have the subscript two when a gas. another example would be so4, if you were to change the subscript, the element would no longer be sulfate.

we change the coefficients instead as that only changes the number of molecules rather than the substance itself.

hope this !

2b2t

explanation:

2b2t