An organic compound has a percentage composition of #40.1%# #C#, and #6.6%# #H#. What is its probable empirical formula?
I makes it
The empirical formula is the simplest while number ratio defining constituent atoms in a chemical species.
We assumes that we got
But you have undoubtedly already noted that the quoted percentages do not add up to 100%. In this scenario IT IS ALWAYS ASSUMED that the BALANCE, the missing percentage, is DUE TO OXYGEN.....
And please note that here WE CAN MAKE NO OTHER ASSUMPTION.
And so we divide each molar quantity thru by the SMALLEST molar quantity to get an empirical formula of.....
We could quote a molecular formula PROVIDED that we get a measurement of molecular mass.