A 7.546 g sample of an unknown compound was analyzed and found to contain only nitrogen andoxygen. If the mass of nitrogen present in the sample was 1.957 g, determine the empirical formula of the compound

What problem would a person have if the nucleic acid in one of his or her cells were damaged?

How many atoms are there in 5.70 mol of mg

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.