Empirical formula sum below!!! please solve?

Question

Q.

A compound contains 92.3% of of carbon and 7.7% of nitrogen. write the empirical formula of this compound and the molecular formula if the molecular weight is 26.

Need the answer for this question urgently. please!!!!!!!!!

Answer 1

it is 5pomfl;gkjxfkl;mxl;k jp kgfl==

;l980-4869059689-

jkdl;gj;[pdkvm/d.fgm

kkfn [dfk[kvglk;k=[o]l[xg

to the gogillionth power squared.

Answer 2

The goal behind the process for determining the empirical formula of a compound is to find the whole-number ratio of moles of the elements which combine to form the compound.

We begin by assuming that we have a 100 gram sample of the compound.  Then the percentages are easily expressed as grams.

Convert to moles:

92.3g C x (1mol C / 12.0g C) = 7.7 mol C

7.7 g H x (1mol H / 1.0g H) = 7.7 mol H

Since the smallest subscript in a formula is 1, then we would assume that the element with the smallest number of moles will have a subscript of 1.  To get the whole number ratios, we divide each number of moles by the smallest number of moles.

In this case, that is particularly easy and we get an empirical formula of CH

The molar mass of CH is 13.  Since the actual molar mass, which is 26, is twice our empirical molar mass, we can assume that there are two carbons and two hydrogens, or C2H2, which is acetylene.

PS -- Just curious.  Can anyone explain to me why this thorough and correct, I might add, explanation should warrant a "thumbs down"?