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## Actual Mass Calculation

How to calculate the actual Mass of each reaction components if only their percentage was given?

New Contributor

## Re: Actual Mass Calculation

@Amin1983 wrote: Be Ball Players

How to calculate the actual Mass of each reaction components if only their percentage was given?

Hello Amin1983,

To calculate the actual mass of each reaction component, you need to know the total mass of the reactants or products, and the percentage composition of each component. The percentage composition tells you the mass fraction of each element in a compound. For example, if a compound has 40% carbon, 6.7% hydrogen, and 53.3% oxygen, it means that 40 g of carbon, 6.7 g of hydrogen, and 53.3 g of oxygen are present in 100 g of the compound.

To find the actual mass of each component, you can use this formula:

$$mass~of~component = mass~fraction~of~component \times total~mass$$

For example, if the total mass of the reactants is 150 g, and one of the reactants has 40% carbon, 6.7% hydrogen, and 53.3% oxygen, then the mass of carbon in that reactant is:

$$mass~of~carbon = 0.40 \times 150~g = 60~g$$

Similarly, the mass of hydrogen and oxygen in that reactant are:

$$mass~of~hydrogen = 0.067 \times 150~g = 10.05~g$$

$$mass~of~oxygen = 0.533 \times 150~g = 79.95~g$$

You can apply the same formula to the other reactants or products, as long as you know their percentage composition and the total mass of the reaction mixture.

I hope the solution may helps you.