Through the process of synthesis, 2 pharmaceutical products are obtained, sample 1 and sample 2. After this, they are separated using High Performance Liquid Chromatography (HPLC). Stationary phase volume in column = 3.10 mL
Volume of mobile phase in column = 8.60 mL
Partition coefficients products on the column for sample 1 = 19.0
Partition coefficients products on the column for sample 2 = 21.0
Unretained peak time = 1.50 min

Required: Find the number of theoretical plates required to obtain a baseline separation for the two peaks from the samples.

a rain shadow is a dry region of land on the side that is protected against the prevailing winds of a mountain range. the prevailing winds are the winds that occur most of the time in a particular place of the earth

prevailing winds carry air toward the mountain range. as the air rises up over a mountain range, the air cools, water vapor condenses, and clouds form. on this side of the mountains, called the windward side, precipitation falls in the form of  rain  or snow. this dry air produces a  rain shadow.

where are the choice options?

a 20-cm-long, cylindrical graphite (pure carbon) rod is inserted into an oxidizing atmosphere at 1145 k and 1.013 x 105 pa pressure. the oxidizing process is limited by the diffu- sion of oxygen counterflow to the carbon monoxide that is formed on the cylindrical surface.