Question

a compound contains 2.5 percentage of Nitrogen by mass and 4 atoms of Nitrogen per molecule of compound the molecular weight of the compound is?!!

Answer 1

Answer: Molecular weight of the compound = 2240 amu.

Explanation: Let the molecular weight of the compound be 'x'.

We are given 2.5% of nitrogen by mass and total of 4 nitrogen atoms is present per molecule in a compound.

Molar mass of 1 Nitrogen atom = 14 amu

According to the question,

2.5% of x = 14 × 4

$\frac{2.5}{100}\times x=14\times 4$

$x=2240amu$

Molecular weight of the compound = 2240 amu.