Question

The atomic musses of N (99. 64 percent) and N (0.36 percent) are 14.00307 amu and 15.0001 amu,
respectively. Calculate the average atomic mass of nitrogen. The percentages in parentheses denote the relative abundances C01​

Answer 1

Answer:

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Answer 2

Given info : The atomic masses of N (99.64 % ) and N (0.36 % ) are 14.00307 amu and 15.0001 amu respectively.

To find : The average atomic mass of nitrogen is....

solution : The average atomic mass of an element = sum of products of % abundance and atomic mass/100

so atomic mass of nitrogen = (99.64 × 14.00307 + 0.36 × 15.0001)/100

= (1,395.26589 + 5.400036)/100

= 1,400.66593/100

= 14.0066593 amu

Therefore the average atomic mass of nitrogen is 14.0066593 amu.

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