
(a)
Interpretation:
Reason behind the broader band after
Concept Introduction:
Principle of chromatography is the mobility of analyte across two phases namely mobile and stationary phase. For effective separation of the analyte, the sample may be required to dissolve in some gas or liquid /supercritical fluids referred to as mobile phases. Another phase used in the chromatographic analysis is the stationary phase often fixed as inert silica gel or as liquid silicon grease adhered to an inert solid support. Immiscible phase has got adsorption sites to retain analyte as it runs along with the mobile phase.
Solute molecules within analyte diffuse away from the center bilaterally. This is essentially a slow-paced equilibration of solute across the mobile and stationary phases.
(a)
Interpretation:
Reason behind the best separation in chromatographic separation achieved when an optimum flow rate occurs has to be given.
Concept Introduction:
Refer to part (a).

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Chapter 21 Solutions
Exploring Chemical Analysis
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- 7. All of the following compounds that are at the same oxidation levelare ___.u. methyl epoxide, v. propyne, w. propanal, x. propene,y. 2,2-dihydroxypropane, z. isopropanol?A. u,v,w,y; B. u,v,w; C. v,w,y,z; D. v, z; E. x,y,z Please include all steps. Thank you!arrow_forward9. Which one of the following substituents is the worst leaving group inan SN2 reaction? A. -NH2; B. -OH; C. –F; D. NH3; E. H2O Please include all steps. Thanks!arrow_forwardUsing the general properties of equilibrium constants At a certain temperature, the equilibrium constant K for the following reaction is 2.5 × 105: CO(g) + H2O(g) CO2(g) + H2(g) Use this information to complete the following table. Suppose a 7.0 L reaction vessel is filled with 1.7 mol of CO and 1.7 mol of H2O. What can you say about the composition of the mixture in the vessel at equilibrium? What is the equilibrium constant for the following reaction? Be sure your answer has the correct number of significant digits. CO2(9)+H2(g) CO(g)+H₂O(g) What is the equilibrium constant for the following reaction? Be sure your answer has the correct number of significant digits. 3 CO(g)+3H2O(g) = 3 CO2(g)+3H2(g) There will be very little CO and H2O. x10 There will be very little CO2 and H2. 000 Neither of the above is true. K = ☐ K = ☐ 18 Ararrow_forward
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