For an experiment, you are required to prepare a series of three solutions by diluting a cobalt(II) chloride stock solution. After making each solution, you notice that each is a different shade of pink. Which is the most concentrated? a. the lightest pink solution you prepared
b. the darkest pink solution you prepared
c. the medium pink solution you prepared
d. the stock solution

The stock solution

Explanation:

When preparing a series of solutions from a stock solution, the stock solution will always be the most concentrated solution of the set. Each of the subsequent solutions are prepared by dilution, which entails adding solvent to a portion of the stock solution. This will always result in a solution that is less concentrated than the stock solution.

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.

the electrical  conductivity  of asolution  of an electrolyte is measured by determining the resistance of thesolution  between two flat or cylindrical electrodes separated by a fixed distance.