Question

4. How do you prove that the speed of diffusion of ammonia is more than that of the
speed of diffusion of hydrochloric acid? (AS)
in different states. (AS.)​

Answer 1

Answer:

This is the basis of a classic chemistry demonstration. Put two pieces of cotton in to opposite ends of a cylindrical tube, maybe about a meter long. One piece of cotton is soaked in concentrated hydrochloric acid which emits HCl gas. The other piece of cotton is soaked in concentrated aqueous ammonia, which emits NH3 gas.

Put the cotton swabs into the tube simultaneously. The NH3 gas and HCl gas will diffuse through the tube and when they meet, you will get NH4Cl(s) which initially appears as a white ring in the tube. That white ring will be closer to the HCl side than the NH3 side, showing that the NH3 is diffusing faster.

experiment

• 1.Take a glass tube with two sides open
• 2.take a couple of cotton balls
• 3.for the first cotton ball add hydrochloric acid
• 4.for the second cotton ball add ammonia solution
• 5.put each cotton ball on the either sides of glass tube and tie it with rubber bands
• 6.we can see that ammonia diffuses faster than hydrochloric acid

Explanation:

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Answer 2

Put two pieces of cotton in to opposite ends of a cylindrical tube, maybe about a

meter long. One piece of cotton is soaked in concentrated hydrochloric acid which emits HCL gas. The other piece of cotton is soaked in concentrated aqueous ammonia, which emits NH3 gas.

Put the cotton swabs into the tube simultaneously. The NH3 gas and HCI gas will diffuse through the tube and when they meet, you will get NH4Cl(s) which initially appears as a white ring in the tube. That white ring will be closer to the HCl side than the NH3 side, showing that the NH3 is diffusion faster than HCL.

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