Chemistry Formula

Mole Fraction Formula Formula

Calculates the ratio of component moles to total moles in a mixture.

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Formula Summary

Mole Fraction Formula

Calculates the ratio of component moles to total moles in a mixture.

Category
Chemistry
Equation
X = n₁ / n_total
Calculator
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Equation

X = n₁ / n_total

Variables

  • X = mole fraction
  • n₁ = moles of component
  • n_total = total moles

Units

  • Mole Fraction: dimensionless (no unit)
  • Component Amount: moles (mol)
  • Total Amount: moles (mol)

When To Use This Formula

Use this formula when calculating the proportion of one component in a mixture based on its number of moles compared with the total moles.

Rearranged Equations

  • n₁ = X × n_total
  • n_total = n₁ / X

How to Use This Formula

  1. Identify the known values from the problem statement.
  2. Convert all values into compatible units.
  3. Substitute the values into the equation and calculate the result.
  4. Check that the final answer has the correct unit and meaning.

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M = n ÷ V

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Molality

m = n ÷ kg solvent

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Solution Dilution

C₁V₁ = C₂V₂

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Ideal Gas Law

PV = nRT

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Related Calculators

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