How to Find Molecular Formula from Empirical Formula?
We can easily calculate the molecular formula from empirical formula by following the steps added below,
Step 1: Find molar mass of the Empirical Formula.
Step 2: Find the molecular mass of the given compound and divide the following molecular formula by the empirical formula from step 1.
Step 3: The whole number is obtained as a result of division. Multiply each atom of the empirical formula in subcript by this whole number.
This is the required molecular formula.
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Empirical Formula
Empirical Formula in chemistry is defined as the simplest ratio of the elements present in the compound. It does not take into account that these elements are connected with each other in any manner. This is explained in the formula of Glucose as we know that the formula for Glucose is C6H12O6 here we see that there are 3 atoms in the glucose molecule, they are carbon, hydrogen, and oxygen, Now the ratio of these elements is 1: 2: 1 i.e. for one molecule of hydrogen we have 2 molecules of hydrogen and one molecule of oxygen. So its empirical formula is CH2O. It doesn’t tell us how many elements of each element are there in the Glucose molecule.
In this article, we will learn about the Empirical Formula in Chemistry, Molecular Formula, the Difference between Molecular Formula and Empirical Formula, and others in detail.
Table of Content
- Empirical Formula
- Molecular Formula
- Molecular Formula Vs Empirical Formula
- Empirical Formula of Various Compounds
- How to Find Molecular Formula from Empirical Formula?