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Amagat's Law Calculator

💨 Gas Laws & Fluids. Use the Amagat's law formula to find total volume, part 1, part 2, part 3: pick the value you want, type the others, and the answer updates as you go.

Vtotal=∑ViV_{total} = \sum V_i
Total volume10 L

Pick the ○ next to the value you want to find, fill in the others, and it solves as you type.

What each letter means

QuantityUnit
Total volumeL
Part 1L
Part 2L
Part 3L

Worked example

Find the total volume when Part 1 = 7.8 L, Part 2 = 2.1 L, Part 3 = 0.1 L.

Using Vtotal = Σ Vi: Total volume = 10 L.

Frequently asked questions

What is the formula for Amagat's law?

Vtotal = Σ Vi.

What do the letters stand for, and what units are used?

Total volume in L, Part 1 in L, Part 2 in L, Part 3 in L.

How do you calculate total volume?

Put the values into Vtotal = Σ Vi. For example, with Part 1 = 7.8 L, Part 2 = 2.1 L, Part 3 = 0.1 L, total volume = 10 L.

Can I solve for a different value?

Yes. In the calculator above, pick the circle next to any value (total volume, part 1, part 2, part 3) and fill in the others: it rearranges the formula for you.

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