Question

When testing the effect of molecular weight on diffusion, the hydrochloric acid and ammonia molecules were placed at different ends of a sealed tube. The ammonium chloride that formed when the molecules diffused towards each other and met was closer to the ammonia end of the tube. TRUE OR FALSE?
Diffusion continues to occur until there is an equal concentration of particles on both sides of a semi-permeable membrane. TRUE OR FALSE?
Diffusion is the spontaneous net movement of particles from an area of lower concentration to an area of higher concentration. TRUE OR FALSE?

Answer 1

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o As we know the diffusion is faster for lighter molecules. Here we have hydrochloric acid & Ammonia 9) HCL - molecular weight 36 ll. b) NH₂ → molecular weight 17 u. There fore, The Ammonia is lightes in weight so it diffuses more & travells more distance to fot salt near the 'nce end of the tube - This is FFALSE | an of 0 The diffusion continues untill there is equal concentration of particles on both sides a Bemi – permeable memberane. : This is TRUE The diffusion is spontaneous met movement of particle from an area of higher concentration to lower concentration. ... This is ( FALSE