How to Apply Gay-Lussac’s Law of Combining Volumes to Simple Stoichiometry – Part 1

Gay-Lussac’s law of combining volumes states that the ratio between the volumes of the reactant gases and the gaseous products can be expressed in simple whole numbers.


This means we can treat volumes like moles when carrying out stoichiometry with gases under the same conditions of temperature and pressure.

Question:

4KO2(s) + 2CO2(g) → 2K2CO3(s) + 3O2(g)

What volume of CO2 is required to react with excess KO2 to produce 6 L of O2 at STP?

Solution:



Click to enlarge the image

Graceful Gay-Lussac's law of combining volumes❓ Let Chemaficionado know at mychemistryhomework@gmail.com❗

References:

(1)    Wikipedia Contributors. Gay-Lussac’s law. Wikipedia. https://en.wikipedia.org/wiki/Gay-Lussac%27s_law.

‌(2)    Brown, C.; Ford, M. Higher Level Chemistry, 2nd ed.; Pearson Education: Harlow, Essex, 2014.

(3)    Ncert. Chemistry : Textbook for Class XI - Part.I; National Council Of Educational Research And Training: New Delhi.

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