The retention time (trtr) and peak width (ww) for compounds a and b are given after chromatographic separation using five different experimental parameters.

which chromatographic separations achieved a resolution that is desirable for quantitative analysis?

separation 1:
compound a: tr=15.0 min; w=5.0 min
compound b: tr=17.0 min; w=6.5

separation 2:
compound a: tr=11.0 min; w=3.0 min
compound b: tr=19.0 min; w=3.0 min

separation 3:
compound a: tr=11.0 min; w=4.0 min
compound b: tr=16.0 min; w=5.0 min

separation 4:
compound a: tr=10.0 min; w=2.0 min
compound b: tr=16.0 min; w=3.0 min

separation 5:
compound a: tr=11.0 min; w=2.5 min
compound b: tr=14.0 min; w=4.5 min

Hannah is writing a report on how albedo affects the global climate. she’s proofreading her passage for any factual errors. which sentence must hannah correct before submitting her report? earth receives energy from the sun. this energy drives many of the processes on earth, including its climate. some part of this energy is reflected by earth’s surface. we use the term albedo to describe the reflected energy. albedo of an object is the ratio of the reflected radiation to the total radiation reaching the object. a value of 0 means no energy is absorbed by the object, whereas a value of 1 means that all of the energy is absorbed. in this way, the albedo of an object can influence earth’s atmospheric temperature.

What is the correct lewis structure for chloroform chcl3

Predict the reactants of this chemical reaction. that is, fill in the left side of the chemical equation. be sure the equation you submit is balanced. (you can edit both sides of the equation to balance it, if you need to.) note: you are writing the molecular, and not the net ionic equation. > cacl2(aq) + h20(l)