Question

a compound was found to be 5.37% nitrogen by mass what is the minimum molecular weight of

Answer 1

One molecule of the compound must contain at least one atom of N. Hence the molecular mass of the compound must contain minimum of 14 parts of mass of nitrogen.

Let the minimum molecular mass of the compound be x.
Then percentage of N in it = (14/x)100
 Actual percentage of N is 5.37.
Therefore (14/x)100 = 5.37
Then x = (14 x 100)/5.37 = 260.7 

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Answer 2

Ans:-

260.7

Explanation:

Let the minimum molecular mass of the compound be x.

Then percentage of N in it = (14/x)100

Actual percentage of N is 5.37.

Therefore (14/x)100 = 5.37

Then x = (14 x 100)/5.37 =1400/5.37

x=260.7