For each form of aspirin, describe how well they dissolve in acidic vs. basic solutions. Explain why these results occurred, take into consideration the chemical nature of the aspirin, and its solubility. Research the claims of manufacturers on the internet, and state whether your results support their claims (the particular manufacturer does not matter, any manufacturers of regular, buffered, enteric, and powdered aspirin will do) (You can also include a chart). (3 points)

Two nitro no2 groups are chemically bonded to a patch of surface. they can't move to another location on the surface, but they can rotate (see sketch at right). it turns out that the amount of rotational kinetic energy each no2 group can have is required to be a multiple of ε, where =ε×1.010−24 j. in other words, each no2 group could have ε of rotational kinetic energy, or 2ε, or 3ε, and so forth — but it cannot have just any old amount of rotational kinetic energy. suppose the total rotational kinetic energy in this system is initially known to be 32ε. then, some heat is removed from the system, and the total rotational kinetic energy falls to 18ε. calculate the change in entropy. round your answer to 3 significant digits, and be sure it has the correct unit symbol.

Select all of the methods through which a drug can enter your body. injection swallowing inhalation absorption

How many moles of cu are needed to react with 5.8 moles of agno3? cu + 2 agno3 → cu(no3)2 + 2 ag