On Combustion Of Of An Unknown Hydrocarbon Produces of and of . This Unknown Hydrocarbon Contains:
of carbon and of hydrogen
The explanation for the Correct answer:
Option D of carbon a of hydrogen
Step 1: Amount of Carbon in of
One mole of Carbon dioxide contains one mole of Carbon.
The given mass of Carbon dioxide is
The molar masses of Carbon dioxide is
The mass of Carbon is
Therefore, the amount of Carbon in of
Thus, the amount of Carbon in of is .
Step 2: Amount of Hydrogen in of
From the molecular formula of ,
One mole of water contains two moles of Hydrogen.
The given mass of water is
The molar masses of water is
The mass of Hydrogen is
Since water contains 2 moles of hydrogen, the mass is of Hydrogen in water is
Therefore, the amount of Hydrogen in of
The amount of hydrogen in of is
Therefore, The unknown hydrocarbon contains of Carbon and of Hydrogen, and option D is correct.