1. I don\'t understand why you need to scan the voltage postively for oxidative
ID: 509751 • Letter: 1
Question
1. I don't understand why you need to scan the voltage postively for oxidative reactions, and negatively for reductive reactions.
Is it because the more the negative voltage, the more reductions occur? Please correct me if I'm wrong.
2. I don't really get the concept: mass transport limitng current. Why is there a limit in faradaic current when the rate of oxidation (for this question) increases? Is it because there is no longer species available for oxidation? Please correct me if this is wrong
Separation would elute last of neutral species? How does the inclusion of these llllul using from an SDS Explain clearly. octadecanol mobile phase: t-butanol (CH3)3coH Why? Electrochemistry Ox, the diagram representing the current potential relationship for the oxidation of a species identify the potential regions of (i)mass transport limiting current, and liikinetic limiting current. EIV vs NHE On one graph, draw the concentration profiles from the electrode surface into the bulk of for (i)potentials negative of, (ii)positive of and (iii)at Eo for this oxidation reaction. used to improve the sensitivity of electroche Differential Pulse Polarography is a method methods. Briefly votingt tu seperote cap & Far based on tresp i. describe the DPP method give pulse vt noise Ts efiminated as iap is sepe ii. explain the origin of this sensitivity improvement Voltamm rationalize the peaked current response observed in the Anodic Stripping ti, 11 jobExplanation / Answer
Solution:
1. The voltage will be negative for oxidation potential where electron is donated while in reduction potential the voltage will be positive for reduction potential where the electrons are accepted for reduction. Yes, the reduction will occur at peak pace for negative voltage as more electrons donated which gets accepted by reductive species. Hence ox-red reaction plays a vital role in determination of the efficiency of the cell potential.
2. Your assumption is correct on mass transport limit, as species concentration depletes over the time the availability for oxidation gets reduced hence faradaic current gets limited in simple term referred as mass transport limiting current.
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