Question

100g of Will 7.14 Outline the cha the water molec water. How do th gol Wat P 10 . the changes that occur (a) to the salt, and (b) to er molecules, when solid Naf dissolves in ow do these changes affect qualitatively) 7.22 Soda magnesium chloride than in observation 7.22 Soda-water is made by sa you titrate soda-water phenolphthalein as indica end-point. Wh the entropy of the system? of log K for the following two equilibria

Answer 1

a) the salt will break into Sodium cation and fluoride anion into water. The salt will get dissociated into water into the ions. The ions will get solubilize in the water, the sodium cation will get attracted to oxygen atom of water. Fluoride ions will get attracted to hydrogen atom of water.

B) the ions inside solid will be tightly packed, on dissolution in water, the ions will start moving and hence the degree of randomness will increase and hence entropy will increase. Entropy will increase as the randomness increases.