Chemistry
Volume of stock required
The rearranged form of the dilution equation, giving the volume to pipette straight away.
The Formula
V1 = (C2 x V2) / C1
The rearranged form of the dilution equation, giving the volume to pipette straight away.
| Symbol | Meaning | Unit | Notes |
|---|---|---|---|
| V1 | Stock volume | L | The volume of stock solution to measure out. |
| C2 | Final concentration | mol/L | The concentration you want. |
| V2 | Final volume | L | The total volume of the diluted solution. |
| C1 | Stock concentration | mol/L | The concentration you are diluting from. |
What Each Symbol Means
V1L
Stock volume
The volume of stock solution to measure out.
C2mol/L
Final concentration
The concentration you want.
V2L
Final volume
The total volume of the diluted solution.
C1mol/L
Stock concentration
The concentration you are diluting from.
See It Worked With Real Numbers
A formula on its own does not tell you which number goes where. The how to calculate dilution page applies this equation to a concrete case, shows every intermediate step, and names the mistakes that produce a wrong answer even when the algebra is right.
Where This Formula Appears
This equation is the working core of How To Calculate Dilution, filed under Science. Every number the guide produces comes from substituting into this one line.