Astudent spots an unknown sample on a tlc plate. after developing the plate in a 50: 50 mixture of hexane/ethyl acetate, the student sees a single spot with an rf of 0.40. does this indicate the unknown sample is a pure compound? what else could the student do to verify whether the sample is pure or a mixture?
Answers: 1
Chemistry, 22.06.2019 12:10
Consider the reaction: n2(g) + o2(g) ⇄ 2no(g) kc = 0.10 at 2000oc starting with initial concentrations of 0.040 mol/l of n2 and 0.040 mol/l of o2, calculate the equilibrium concentration of no in mol/l how would this be done?
Answers: 3
Chemistry, 22.06.2019 20:10
Suppose you mix one mole of sulfuric acid (h2so4) with 1 mole of sodium hydroxide(naoh). why does the ph of the solution remain below 7? ( explain so i can get better understanding! )
Answers: 2
Astudent spots an unknown sample on a tlc plate. after developing the plate in a 50: 50 mixture of h...
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