5.24 - Avogadro's Law and gas volume calculations

Question 1

What does Avogadro’s Law state?

Answer 1

That equal volumes of gases under the same conditions of temperature and pressure contain the same number of molecules

Question 2

If you are given an equation that shows reacting gases, what can you work out?

Answer 2

The volumes involved

Question 3

100cm3 of hydrogen is mixed with 100cm3 of chlorine. What volume of hydrogen chloride is formed?

Answer 3

• Ratio = 1:1:2
• Volume of ‘1’ = 100cm3
• Volume of HCl = 100cm3 * 2 = 200cm3