Imagine that you have a stock solution of 6.00 M aqueous nitric acid. a. Calculate the volume of the stock solution that would be necessary to prepare 200. mL of 0.150 M aqueous nitric acid. You must show your work to receive full credit, even if your answer is correct. b. (i) Explain why the 0.150 M solution cannot be prepared by simply adding the calculated amount of stock solution directly to 200. mL of water, and (i) explain how the solution must be prepared instead.