(c) polar solutes were separated by hydrophilic interaction chromatography (hilic) with a strongly polar bonded phase. how would retention times be affected if eluent were changed from 80 vol% to 90 vol% acetonitrile in water?

(d) polar solutes were separated by normal-phase chromatography on bare silica using methyl '-butyl ether and 2-propanol solvent. how would retention times be affected if eluent were changed from 40 vol% to 60 vol% 2-propanol? (hint: see la..12.l. g-2.i.: a.)

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.

Two nails have identical sizes and shapes. in one nail, 20 percent of the domains are lined up. in the other nail, 80 percent of the domains are lined up. which has stronger magnetic force? first answer gets brainliest!

What is the chemical formula for dihydrogen monoxide