how can we prove that speed of diffusion of ammonia is more than hydrochloric acid
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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 than HCl.
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 than HCl.
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Explanation:
Aim:To observe the speed of two gases
material required:long glass tube with scale, liquid NH3,HCl,pieces of cotton,two rubber corks and pair of tongs
precautions:you should take care of handling HCl and prevent that you should not touch with bare hand
procedure:take a one meter long narrow glass tube.take two pieces of cotton .soak one in HCl solution and another in NH3 solution . insert them separately at the two o ends of the tube with the help of tongs . at the same time with rubber cork and observe. the HCl gives off HCl^ and NH3 solution gives off. NH3^.both gases react together to form a white fumes of NH4Cl.observe the white rings in the tube due to formation of NH4Cl
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