Calculadora de Fração Molar
Calcule a fração molar de cada componente em uma mistura química de forma precisa.
mol
mol
Mole Fraction of A
0.4000
Mole Fraction of B0.6000
Mole Fraction of A vs Moles of Component A
Formula
## How to Calculate Mole Fraction ### Formula **X_A = n_A / (n_A + n_B)** Mole fractions are dimensionless and always sum to 1.
Exemplo Resolvido
A mixture of 2 mol ethanol and 3 mol water.
- 01Total moles = 2 + 3 = 5
- 02X_A = 2 / 5 = 0.4
- 03X_B = 3 / 5 = 0.6
Perguntas Frequentes
What is mole fraction?
Mole fraction is the ratio of moles of one component to the total moles in the mixture. It ranges from 0 to 1.
Why must mole fractions sum to 1?
Because they represent proportions of the whole mixture.
How is mole fraction related to partial pressure?
By Dalton's law, partial pressure of a gas equals its mole fraction times total pressure: P_i = X_i × P_total.
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