# How do you go from percent composition to empirical formula?

## How do you go from percent composition to empirical formula?

1 Answer. take the percentages divide them by the atomic relative mass of the atoms. After dividing you will get the values. Divide all the values with the smallest value which you get and by doing this you will get a ratio and this will be the empirical formula.

What is the percent composition of compound that contains 2.7369 g of chlorine 0.4116 g of oxygen and 0.7971 g of phosphorus in a 3.9460 g sample of the compound?

12. Find the percentage composition of a compound that contains 2.7369 g of chlorine, 0.4116 g of oxygen and 0.7971 g of phosphorus in a 3.9460 g sample of the compound. 79 2.7369 = 73.64% 0- 4116 3.9460 319467 ચૂં 100 = 10.43% P.

How do you find Percent composition formula?

Calculate the percent by mass of each element by dividing the mass of that element in 1 mole of the compound by the molar mass of the compound and multiplying by 100%.

### What is the percent composition of a compound that contains 40.8 g carbon and 54.4 g oxygen?

%C=40.8⋅g95.2⋅g×100%=42.9% . %O=54.4⋅g95.2⋅g×100%=57.1% .

What is the percent composition of a carbon oxygen compound given that a 95.2 g sample of the compound contains 40.8 g of carbon?

What is the empirical formula of a compound that contains 40% carbon 6.7% hydrogen and 53.3% oxygen?

1 Answer. Ernest Z. The empirical formula is CH2O .

#### What is the empirical formula of a compound that is 25.6% calcium 33.3% chromium and 41% oxygen?

1 Answer. The empirical formula is CaSO3 .

What is the easiest way to find the empirical formula?

Calculate the empirical formula.

1. In any empirical formula problem you must first find the mass % of the elements in the compound.
2. Then change the % to grams.
3. Next, divide all the masses by their respective molar masses.
4. Pick the smallest answer of moles and divide all figures by that.