The number of molecules of carbon(iv)oxide produced when 10.0g of Caco, is treated with 0.2dm of IM HCI in the equation Caco, + 2HCl => CaCl, + H2O + CO, is
A. 1.00 x 1023

B. 6.02 x 1023

C. 6.02 x 1022

D. 6.02 x 1024

(Ca = 40.0, O = 16, C = 12, H = 1, Cl = 35.5)

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.