A standard solution of (COOH)2 of concentration 0,20mol. dm-3 is prepared by dissolving a certain amount of (COOH)2 in water in a 250 cm3 volmetric flask calculate the mass of (COOH)2 needed to prepare the standard solution ​

What forms when chemical reactions combine pollution with sunlight?

Lab reagent, hypothesis test.a reference solution used as a lab reagent is purported to have a concentration of 5 mg/dl. six samples are taken from this solution and the following concentrations are recorded: (5.32, 4.88, 5.10, 4.73, 5.15, 4.75) mg/dl.these six measurements are assumed to be an srs of all possible measurements from solution.they are also assumed to have a standard deviation of 0.2, a normal distributin, and a mean concentration equal to the true concentration of the solution.carry out a significance test to determine whether these six measurements provide reliable evidence that the true concentration of the solution is actually not 5 mg/dl.

Which three statements represent the benefits of performing experiments using computer simulations?