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Solution dilution: stock volume needed

Calculate the stock solution volume needed for a target concentration and a specified final volume.

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01

Your inputs

The starting values are an example.

Decimals: 12.5 · Thousands: 1,234.56. Follow the field instructions for lists.

02

Your result

Enter your values and select Calculate.

Your calculation will appear here.

Your result will include the relevant values and units.

Understand the calculation

Formula and example

How it is calculated

C₁ × V₁ = C₂ × V₂; V₁ = C₂ × V₂/C₁

Worked example

To obtain 100 ml at 0.1 mol/l from a 1 mol/l stock solution, use 10 ml of stock and make up to a final volume of 100 ml.

Things to check

  • Both concentrations must use the same volume-based unit.
  • The volume difference is a calculated quantity. Real mixtures are made up to the required final volume; this result does not provide substance-specific mixing instructions.