- November 15, 2020
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ANSWERS OF NUMERICAL PROBLEMS MUST END WITH PROPER. UNITS. • QUESTIONS . Differences between electrochemical reaction and electrolysis. Electrochemistry Problems. 1). Given the E° for the following half-reactions: Cu. +. + e. -. → Cu°. E°red = V. Cu. 2+. + 2e. -. → Cu°. E°red = V. What is E°. Ten things to know before working electrochemistry problems: 1. Oxidation- Reduction Reactions. Every electrochemical reaction must involve a chemical system.

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The resistance of 0. Thus, there will be no change in conc. Find out the conc.

What do I get? The cell voltage will be.

You can see some Practice Questions Solved – Electrochemistry, Class 12, Chemistry sample questions with examples at the bottom of this page. D It is the case of attacked electrodes that is. MnO 4 -and weakest reductant: By continuing, I agree that I am at least 13 years old and have read and agree to the terms of service and privacy policy.

The electrode reactions are: Also browse for more study materials on Chemistry here.

Why do I need to sign in? The molarity of the solution will, thus, remain unaffected.

It was found that when 2. The emf of this cell is found to be 0. The electrode reaction is: Calculate [H ] at positive electrode.

Stronger is oxidant, weaker is its conjugate reductant and vice-versa. The cell voltage will be A 2. What will be the molarity of solution if nickel electrodes electrochemistdy used? Continue with Google Continue with Facebook. Calculate solubility product of AgI.

A unpredictable B – Hence its conductance would be highest. If equal volumes of solution A and B are mixed, what numerica,s be the resistance of the mixture, using the same cell?

The electrolysis of Ni NO 3 2 in presence of Ni electrode will bring in following changes:.

D It is the case of attacked electrodes that is Anode: The half cell reaction is: Discussion Questions i For the reaction given below, apply Le-Chatelier principle to justify the results recorded by you and also bring out mathematical rationalisation of your results.

The oxidation state of the metal in the metal salt is: Identify the only incorrect statement regarding the quantitative estimation of aqueous Fe NO 3 2.

The ammeter shows 0. If the atomic masses of X and Y are in the ratio of 2: The emf of the cell is A 0. Continue with Google or Continue with Facebook. Thus coulomb electrochemistfy means charge on N electrons where N in Av.

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