An organic compound was found to contain the following constituents : C 33% H 4 7% N 13 2% Cl - Chemistry - Basic Concepts in Chemistry

Question

An organic compound was found to contain the following constituents
: C 33% H 4 7% N 13 2% Cl 33 4% Determine the empirical formula

Vartika Jain · Accepted Answer

Dear Student,

Assume 100 g of the compound is present
 This changes the percents to grams:C=33 gH=4
7 gN=13 2 gCl=33
4 gConvert masses to moles:C=33 12=2
75 molH=4 71=4 7 molN=13 214 =0 94 molCl=33 435
5 =0
94 molDivide tby the lowest, seeking the smallest whole number ratioC=2
750 94=3H=4 70 94=5N=0 940 94 =1Cl=0 940
94 =1Therefore, the empirical formula is C3H5NCl

An organic compound was found to contain the following constituents : C 33% H 4.7% N 13.2% Cl 33.4%. Determine the empirical formula.