Mr. Rutherford's chemistry class was collecting data in a neutralization study. Each group had 24 test tubes to check each day for one week. Students had to check to see whether the solution in each test tube was acidic, basic, or neutral. What would be the MOST efficient method for collecting this data and recording it for later analysis?

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.