Acompound is found to contain 13.65 % carbon and 86.35 % fluorine by mass. what is the empirical formula for this compound

Greetings!

To find the empirical formula you need the relative atomic mass of each element!

C = 12

F = 19

You can simply change the percentages into full grams

C = 13.64g

F = 86.35g

Then you use this to find the Number of moles = amount in grams / atomic mass

C = 13.64 ÷ 12 = 1.13

F = 86.35 ÷ 19 = 4.544

Then divide each number of moles by the smallest value:

C = 1.13 ÷ 1.13 = 1

F = 4.544 ÷ 1.13 = 4.02 ≈ 4

So that means that there are 1 Carbon and 4 Fluorine. This means the empirical formula would be:

CF₄

Hope this helps!

chemical energy is stored in the chemical bonds of atoms and molecules. it can only be seen when it is released in a chemical reaction. when chemical energy is released, the substance from which the energy came is often changed into an entirely different substance.

this chemical reaction releases energy in the form of light and heat. chemical energy is the potential energy stored in the arrangement of atoms within molecules. breaking chemical bonds requires energy, while forming new chemical bonds releases energy.

the atp molecule can store energy in the form of a high energy phosphate bond joining the terminal phosphate group to the rest of the molecule. in this form,energy can be stored at one location, then moved from one part of the cell to another, where it can be released to drive other biochemical reactions.

h let me think