1. Tardigrade
  2. Question
  3. Chemistry
  4. If the atomic mass unit 'u' were defined to be (1/5)th of the mass of an atom of C -12, what would be the atomic weight of nitrogen in amu or 'u' in this state? Atomic weight of N on conventional scale is 14 :

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. If the atomic mass unit 'u' were defined to be $\frac{1}{5}^{th}$ of the mass of an atom of $C -12$, what would be the atomic weight of nitrogen in amu or 'u' in this state? Atomic weight of $N$ on conventional scale is $14$ :

Some Basic Concepts of Chemistry

Solution:

Apply,

weight $=\frac{\text { absolute at. wt. }}{1 amu }$

$14=\frac{\text { absolute at. wt. }}{\frac{1}{12} \times \frac{12}{ N _{ A }} g }$ ...(1)

$x =\frac{\text { absolute at. wt. }}{\frac{1}{5} \times \frac{12}{ N _{ A }} g }$ ...(2)

$x=5.83\, amu$