G Which of the following statements is incorrect? (blank 11) A) A buffer solution contains a weak acid or base and the salt of its conjugate base or acid, respectfully. B) A buffer solution resists changes in pH upon addition of small amounts of acid or base. C) The more concentrated the buffer solution is, the better its buffer capacity. D) Water is a buffer solution with a pH of 7.

The small bags of silica gel you often see in a new shoe box are placed there to control humidity. despite its name, silica gel is a solid. it is a chemically inert, highly porous, amorphous form of sio2. because water vapor readily adsorbs onto the surface of silica gel, it acts as a desiccant. despite not knowing mechanistic details of the adsorption of water onto silica gel, from the information provided you should be able to make an educated guess about the thermodynamic characteristics of the process. predict the signs for δg, δh, and δs for the adsorption of water.