a Explain why cations move towards the cathode during electrolysis b When lead iodide, PbI 2 , is electrolysed the following reactions occur Pb 2 2e Pb and 2I I 2 2e i Which of these equations describes the reaction at the cathode Explain your answer ii What is the ox no change of each iodide ion i...

a Electrolysis occurs in between two electrodes one is cathod an ...

a. Explain why cations move towards the cathode during electrolysis. b. When lead iodide, PbI 2 ,

Question:

a. Explain why cations move towards the cathode during electrolysis.

b. When lead iodide, PbI₂, is electrolysed the following reactions occur:

Pb²⁺ + 2e^– → Pb and 2I^– → I₂ + 2e^–

i. Which of these equations describes the reaction at the cathode? Explain your answer.

ii. What is the ox. no. change of each iodide ion in the reaction 2I^– → I₂ + 2e^–?

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Cambridge International AS And A Level Chemistry Coursebook

ISBN: 9781316637739

2nd Edition

Authors: Lawrie Ryan, Roger Norris

See More Books

Question Posted: Sep 22, 2021 02:37 AM

See More Questions

Use graphs to determine which of these equations may be identities. a. cosx = xin(/2 - x) b. cos x = sin (x - /2) c. (csc x - cot x)(sec x + 1) = 1 d. tan x (cot x + tan x) = sec2x
Which one of these equations describes a redox reaction? H*(aq) + OH (aq) - H20(1) .a o 2KB1(aq) + Pb(N03)2(aq) .b o 2KNO3(aq) + PbBr2(s) CaBr2(aq) + H2S04(aq) - .c CasO4(s) + 2HB1(g) .d o 3C12(g) +...
which of these equations that represented in Matlab are true >> syms t fx >> y=t^2_3*t >> syms t fx >> y=t^2-3*t >> clear >> syms t >> y=t^2-3t
Terrance is a 13-year-old 8th grader, who is an average student. He is rarely ever disruptive in class and gets along well with his peers. His teacher always noticed that he was normally high-strung,...
Porphyrin is a pigment in blood protoplasm and other body fluids that is significant in body energy and storage. Let x be a random variable that represents the number of milligrams of porphyrin per...
Data for Nona Inc. are given in E23-7. Instructions Journalize the entries to record the materials and labor variances.
Assume that you are the dean of a business school and that you want your school to offer additional entrepreneurship courses. Surprisingly to you, some professors are resisting the idea of doing this...
Western Animal Rescue is a nonprofit organization that supports the fostering and adoption of animals, such as cats, dogs, and birds. People can register to adopt animals. Others register and add...
1 Explain briefly about six sigma and capacity maturity models? 2 Explain about the contemporary management practices taking place in Indian business model? 3 4 What is performance management?...
On January 1. Ruiz Company issued bonds as follows: Face Value: Number of Years: Stated Interest Rate: Interest payments per year 500,000 15 7% Required: 1) Calculate the bond selling price given the...
a. Why does an ionic compound have to be molten to undergo electrolysis? b. Give two properties of graphite that make it a suitable material for use as an electrode. Explain your answers.
a. In the presence of acid, the manganate(VII) ion is a powerful oxidising agent. The half-equation for its reduction in acid solution is: MnO 4 (aq) + 8H + (aq) + 5e Mn 2+ (aq) + 4H 2 O(l) E =...
Let be the wind velocity approaching a windmill, D be the windmill rotor disk diameter, and the air mass density. Show that the rate of kinetic energy flow through the windmill disk area is D 2 3...
Briefly discuss the reasons why operational and compliance audits are conducted. The results of the financial statement audits are reported to outside users. Who are the recipients of the results of...
The following table shows the maturities and prices for a sample of Treasury bonds in December 2019. Each bond makes a single payment of $100 at maturity with no coupon payments. What is the annually...
What are some non-monetary or unrecorded costs that the organization faces from the effects of a lawsuit? Explain it's impact.
You want to buy a new car. Your budget can fit up to $500 per month for a car payment. The dealership offers three options for a loan: Option 1: A 4-year add-on loan with an annual interest rate r=...
Aiden works for a pharmaceutical company. It has been a little over 3 years since he was hired. He now makes $55,000 per year. When he was hired, he was told that he had 7 days of paid vacation time....
We often refer to the state of the hydrogen atom as "the n = 3 state," for example. Under what circumstances do we only need to specify one of the four quantum numbers? Under what circumstances would...
10m solution. If Ka(HA) = 10 then pOH of solution will be [Given : log4=0.6] (A) 6.7 (B) Greater than 6.7 & less than 7.0 (C) Greater 7.0 & less than 7.3 (D) Greater than 7.3
Predict the products for each of the following: a. b. c. d. e. f. 1) O3 2) DMS 3) Excess LAH 4) H20 1) O3 2) DMS 3) Excess LAH 4) H20
Explain why the oscillations in the two-phase coexistence region using the RedlichKwong and van der Waals equations of state (see Figure 7.4) do not correspond to reality. Figure 7.4 140 120 100 304...
Propose a plausible mechanism for each of the following transformations. a. b. 1) MeMgBr 2) H20 1) Excess MeMgBr 2) H20
Given that g(x) = x - 4x-5, find (g og)( - 2).
State the domain of the given function. 6 f(x)= 6x-4
x + y-6x-4y = 3 Step 3 of 3: Graph the circle. Answer Keypad Keyboard Shortcuts previous step answers Press the Plot button to add the graph to the grid. Points can be moved by dragging or using the...

a. Explain why cations move towards the cathode during electrolysis. b. When lead iodide, PbI 2 ,

Question:

Step by Step Answer:

a Electrolysis occurs in between two electrodes one is cathod an...View the full answer

Cambridge International AS And A Level Chemistry Coursebook

Students also viewed these Sciences questions