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Solution Dilution Calculator

Chemistry
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Calculates the volume of stock solution needed to create a diluted solution of a desired concentration and volume using the formula C1V1 = C2V2.

How To Use

How to use this calculator

Start with your values, or try a preset.

Step 1

Enter Initial Concentration (C1), Initial Volume (V1), Final Concentration (C2), and Final Volume (V2) in the units shown.

Step 2

Read Required Initial Volume (V1) and Required Diluent Volume in the results panel. Results update as you change the inputs.

Step 3

Choose a preset to load an example, then adjust the values for your situation.

Worked Examples

Example calculations

See the inputs and their calculated results.

1M to 0.1M in 100mL

Initial Concentration (C1): 1 M (Molar); Initial Volume (V1): 10 mL; Final Concentration (C2): 0.1 M (Molar); Final Volume (V2): 100 mL

Required Initial Volume (V1): 10 mL; Required Diluent Volume: 90 mL

5M to 0.5M in 50mL

Initial Concentration (C1): 5 M (Molar); Initial Volume (V1): 5 mL; Final Concentration (C2): 0.5 M (Molar); Final Volume (V2): 50 mL

Required Initial Volume (V1): 5 mL; Required Diluent Volume: 45 mL

2M to 0.25M in 200mL

Initial Concentration (C1): 2 M (Molar); Initial Volume (V1): 25 mL; Final Concentration (C2): 0.25 M (Molar); Final Volume (V2): 200 mL

Required Initial Volume (V1): 25 mL; Required Diluent Volume: 175 mL

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