Respuesta :

thedemon840

Answer:

14.007

Explanation:

Atomic mass of Nitrogen;

;(14.003 × 99.63) + (15.000 × 0.37)

;In which this gives us..1400.66889..then divide by the total percentage..which is 100

; 1400.66889 ÷ 100 = 14.007