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Dilute Solution of Known Molarity

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* Our calculator is based on the following equation:

Concentration (start) x Volume (start) = Concentration (final) x Volume (final)

It is commonly abbreviated as: C_{1}V_{1} = C_{2}V_{2}

**For example:**

What volume of a given 10 mM stock solution is required to make 20ml of a 90 μM solution?

With the equation C_{1}V_{1} = C_{2}V_{2}, where C_{1}=10 mM, C_{2}=90 μM, V_{2}=20 ml and V_{1} is the unknown:

- Enter 10 into the Stock Concentration (start) box and select the correct unit (millimolar)
- Enter 90 into the Desired Concentration (final) box and select the correct unit (micromolar)
- Enter 20 into the Desired Volume (final) box and select the correct unit (milliliter)
- Press calculate
- The answer of 180 microliter (0.18ml) appears in the Required Volume (start) box

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