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Van't Hoff Factor Calculator

Chemistry
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Calculates the Van't Hoff factor (i), which represents the number of particles a solute dissociates into in a solution. This factor is important in colligative properties calculations.

How To Use

How to use this calculator

Start with your values, or try a preset.

Step 1

Enter Observed Colligative Property Change and Calculated Colligative Property Change (assuming no dissociation) in the units shown.

Step 2

Read Van't Hoff Factor (i) 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.

NaCl in Water (low concentration)

Observed Colligative Property Change: 0.186 Units depend on the property (e.g., °C for freezing point depression); Calculated Colligative Property Change (assuming no dissociation): 0.093 Units depend on the property (e.g., °C for freezing point depression)

Van't Hoff Factor (i): 2

MgCl2 in Water (low concentration)

Observed Colligative Property Change: 0.279 Units depend on the property (e.g., °C for freezing point depression); Calculated Colligative Property Change (assuming no dissociation): 0.093 Units depend on the property (e.g., °C for freezing point depression)

Van't Hoff Factor (i): 3

Glucose in Water

Observed Colligative Property Change: 0.05 Units depend on the property (e.g., °C for freezing point depression); Calculated Colligative Property Change (assuming no dissociation): 0.05 Units depend on the property (e.g., °C for freezing point depression)

Van't Hoff Factor (i): 1

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