Suppose you need to create a 0.001 M concentration solution of copper ions. You only have 10 mL volumetric flasks, so you decided to make this standard in a two step process. First, you add some copper (II) nitrate trihydrate to the first 10 mL flask. You fill the flask up to volume. Once this solution is created, you transfer 0.1 mL to a second 10 mL flask, which becomes your 0.001 M concentration standard. How much chemical do you need to add to the first flask to achieve the desired concentration after the dilution?

Achemistry student needs to standardize a fresh solution of sodium hydroxide. he carefully weighs out of oxalic acid , a diprotic acid that can be purchased inexpensively in high purity, and dissolves it in of distilled water. the student then titrates the oxalic acid solution with his sodium hydroxide solution. when the titration reaches the equivalence point, the student finds he has used of sodium hydroxide solution.calculate the molarity of the student's sodium hydroxide solution. be sure your answer has the correct number of significant digits.