The chromatogram below shows the separation of components in an over-the-counter pain reliever.

1: acetaminophen, tr 3.97 min, w1/2 0.12 min 2: caffeine, tr 6.15 min, w1/2 0.21 min 3: benzoic acid, tr 9.73 min, w1/2 0.35 min 4: aspirin, tr 14.8 min, w1/2 0.73 min

calculate the resolution r between acetaminophen and caffeine.

calculate the number of theoretical plates n for the peaks of acetaminophen and caffeine

2points why do scientists need governmental funding? o a. government politicians ask all the important scientific questions. o b. scientists have to pay taxes to the government on the money they make. o c. the cost of doing scientific research can be very high. o d. the government is controlled by scientists. submit

The grooves or folds of the brain are called

In vapor-liquid equilibrium in a binary mixture, both components are generally present in both phases. how many degrees of freedom are there for such a system? the reaction between nitrogen and hydrogen to form ammonia occurs in the gas phase. how many degrees of freedom are there for this system? steam and coal react at high temperatures to form hydrogen, carbon monoxide, carbon dioxide, and methane. the following reactions have been suggested as being involved in the chemical transformation: