How does the Gas Collection Calculator work?

Input measured volume, temperature, atmospheric pressure Then: Correct for water vapor pressure Then: Calculate dry gas volume at STP or other condition.

Can you give an example of how to use the Gas Collection Calculator?

Example: Input O₂ collected at 25°C, 760 mmHg, wet gives a result of Correct for 23.8 mmHg H₂O vapor pressure; V_dry = 0.969 × V_wet.

Is the Gas Collection Calculator free to use?

Yes — completely free with no registration, download, or subscription required. All calculations happen instantly in your browser.

How accurate is the Gas Collection Calculator?

Our Gas Collection Calculator uses verified mathematical formulas and is accurate to multiple decimal places. Results are calculated in real-time using the same methods used by professionals.

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Gas Collection Calculator

Gas Collection Over Water

Total Pressure (atm)

Vapor Pressure of Water (atm)

Volume (L)

Temperature (K)

Gas collection by water displacement; measured gas volume must be corrected for water vapor pressure at temperature.

Difficulty:beginner

References

›Gas Collection — Wikipedia

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Gas Collection Calculator

Gas Collection Over Water

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Gas Collection Over Water