2. A mass balance is being made for a proposed carbothermic reduction process for thezinc calcine. Enough carbon (in the form of graphite, pure C) will be added to reduceall the lead, zinc oxide and sulphate in the calcine to metallic lead and zinc vapour, andto reduce all the hematite to FeO. The sulphur will leave the system as SO2 and it isassumed that all the carbon will wind up as CO in the off-gas.stoichiometrically required mass of graphite?480 T per day Zinc calcine(72.67% ZnO. 0.25% ZnSO4.17% Fe2O3, 2.37% PbSO4)GraphiteWhat is theZnCarbothermicReduction8Pb FeO SO₂ CO

ZnO+C→Zn+CO ZnSO4+2C→SO2+2CO Fe2O3+C→2FeO+CO PbSO4+2C→Pb+SO2+2CO…

Answered: 2. A mass balance is being made for a…

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter17: Electrochemistry

Section: Chapter Questions

Problem 9RQ: What characterizes an electrolytic cell? What is an ampere? When the current applied to an...

See similar textbooks

Similar questions

What characterizes an electrolytic cell? What is an ampere? When the current applied to an electrolytic cell is multiplied by the time in seconds, what quantity is determined? How is this quantity converted to moles of electrons required? How are moles of electrons required converted to moles of metal plated out? What does plating mean? How do you predict the cathode and the anode half-reactions in an electrolytic cell? Why is the electrolysis of molten salts much easier to predict in terms of what occurs at the anode and cathode than the electrolysis of aqueous dissolved salts? What is overvoltage?
Determine the standard free energy change, Gf, for the formation of S2-(aq) given that the Gf for. Ag*(aq) and Ag2S(s) are 77.1 kJ/mole and 395 kJ/mole respectively, and the solubility product for Ag2S(s) is 81051.
When jump-starting a car with a dead battery, the ground jumper should be attached to a remote part of the engine block. Why?
During bad storage of cement the alkalis in the cement react with CO2 to form alkali carbonates, which they react with Ca(OH)2 liberated by the hydrolysis of to form C3S, CaCO3 Calcium Carbonate, C3S Dicalcium silicate, CaCO3 Tricalcium silicate, Calcium Carbonate
15.) If a form sample of pure hydrouen gs is ignitecd ry.carctielly the hydragun burng gently.combining with the axyqun gas ofthe air Write theuabalanced chemical eiAcetion for this reaction. water. vapor. 15 17.) If electricity of sufficient voltage is passed into a potaosium iudice in water, solution af a reaction takes place in which clemental hydcore asolution ot potassium hydroxida. Write the unbalanced equaticn for this process. gas, and elemintal iodine are produed, Icaving A) Elemental boron is pcoduced in one inclustrial process by heating diharon trio xide with magnesium metal, also producing magnesium oxide es a by prochuct, Write the unbre chemical iquatien for this processr 21) Phosphorus trichloride 's woed in the maoufucture certain be Syrthesizee by d pesticides and may combination of its constituent elements, Write the unbalanced quathion for this process. Chemical
A piece of solid Sn metal is put into an aqueous solution of FeSO4. Write the net ionic equation for any reaction that may be predicted. Be sure to specify states such as (aq) or (s).
Please help me with question 19.67.
(b) A zinc plate is then electrically connected to the carbon steel plate and both are immersed in seawater. Which material will form the anode and which the cathode in the resulting galvanic couple? Justify your answer. (c) Write down the relevant anodic and cathodic reactions for (b).
A magnesium bar with a mass of 6.0 kg is attached to a buried iron pipe to serve as a sacrificial anode. An averagecurrent of 0.020 A flows between the bar and the pipe.(a) Which reactions take place at the surface of the magnesium bar and the surface of the iron pipe? (b) How many years would it take for the entire magnesium bar to be consumed?
(a) Write the definition of reduction and oxidation. (b) Ammonia oxidizing bacteria (AOB) play an important role in nitrogen cycle. They are also utilized in engineered systems to remove ammonia in wastewater treatment. They obtain energy by oxidizing ammonia NH3 into nitrite (NO2-) and reducing oxygen to water. Balance the reduction and oxidation reactions driven by AOB. (c) Combine the redox reactions into a single reaction. (d) Find ΔG° for the combined reaction. (e) Find ΔG for the given conditions: [NH3] = 2.7 × 10-3 M; pO2 = 0.21 atm; [NO2-] = 1.2 × 10-5 M. If necessary assumeneutral pH (i.e., pH = 7). Are the given conditions favourable for AOB growth?
Research has been conducted on molybdates as replacements for chromates in the surface treatment of various metals in order to reduce corrosion by the formation of a surface film of MoO,. The overall reaction with iron is 2Fe(s) + 3M00- (aq) + 6H*(aq) - Fe;Os(s) + 3M0O:(s) + 3H;O() Given the following AG; in calories per mole at 25°C: Fe,O; (s) =-177,100, MoO:(s) =-120,000, H:O (1) =-56,690, Mo0; (aq) =-205,420 (a) Is the above overall reaction spontaneous under standard conditions? (b) Calculate the standard electrode potential for the above overall reaction. (c) Write an expression for the electrode potential as a function of molybdate ion concentration and pH. (d) Is the overall reaction spontaneous for a molybdate ion concentration of 0.001M at pH 7.0?
How many coulombs are released when H2O is oxidized to liberate 1.00 mol O2 in the reaction 2H2O S O2 1 4H1 1 4e2?

SEE MORE QUESTIONS

Recommended textbooks for you

Chemistry: An Atoms First Approach

Chemistry

ISBN:

9781305079243

Author:

Steven S. Zumdahl, Susan A. Zumdahl

Publisher:

Cengage Learning

Chemistry

ISBN:

9781133611097

Author:

Steven S. Zumdahl

Publisher:

Cengage Learning

Chemistry

ISBN:

9781305957404

Author:

Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:

Cengage Learning

Chemistry: An Atoms First Approach

Chemistry

ISBN:

9781305079243

Author:

Steven S. Zumdahl, Susan A. Zumdahl

Publisher:

Cengage Learning

Chemistry

ISBN:

9781133611097

Author:

Steven S. Zumdahl

Publisher:

Cengage Learning

Chemistry

ISBN:

9781305957404

Author:

Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:

Cengage Learning

Chemistry: Principles and Reactions

Chemistry

ISBN:

9781305079373

Author:

William L. Masterton, Cecile N. Hurley

Publisher:

Cengage Learning

Chemistry: Principles and Practice

Chemistry

ISBN:

9780534420123

Author:

Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:

Cengage Learning

Chemistry by OpenStax (2015-05-04)

Chemistry

ISBN:

9781938168390

Author:

Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Publisher:

OpenStax

SEE MORE TEXTBOOKS