The much-abused drug cocaine is an alkaloid. alkaloids are noted for their bitter taste, an indication their basic properties. cocaine c₁₇h₂₁o₄n, is soluble in water the the extent of 0.17g/100 ml solution, and a saturated solution has a = 10.08. what is the value of for cocaine? ; = ?

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.