1. Match the Process name with the Process description. process description process name Bayer process Frasch process Downs process Ostwald process Chloralkali process Charles Hall Answer A. Electrolyzing brine to produce NaOH and chlorine gas. B. Molten salts are electrolytically exposed to sodium vapor to pure alkali metals. C. Making nitric acid. D. Extracting sulfur using high pressure steam and compressed air. E. Mixed Na3AlF6, with alumina, Al203 to lower the melting point. F. Bauxite ore is processed into alumina, Al203.

1. Match the Process name with the Process description. process description process name Bayer process Frasch process Downs process Ostwald process Chloralkali process Charles Hall Answer A. Electrolyzing brine to produce NaOH and chlorine gas. B. Molten salts are electrolytically exposed to sodium vapor to pure alkali metals. C. Making nitric acid. D. Extracting sulfur using high pressure steam and compressed air. E. Mixed Na3AlF6, with alumina, Al203 to lower the melting point. F. Bauxite ore is processed into alumina, Al203.

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter12: Gravimetric Methods Of Analysis

Section: Chapter Questions

Problem 12.25QAP

See similar textbooks

Similar questions

Impure nickel, refined by smelting sulfide ores in a blast furnace, can be convertedinto metal from 99.90% to 99.99% purity by the Mond process. The primaryreaction involved in the Mond process is:Ni(s) + 4CO(g) ⇌ Ni(CO)4(g)In the second step of the Mond process, the gaseous Ni(CO)4 is isolated andheated to 227°C. The purpose of this step is to deposit as much nickel as possibleas pure solid (the reverse of the preceding reaction). Calculate the equilibriumconstant for the preceding reaction at 227°C.
Fe2O3 is produced from a pyrite concentrate containing 65% by weight of pyrite (FeS2) by total oxidizing roasting according to the following reaction. 5 tons of pyrite concentrate is roasted daily (MA, g / mol; Fe: 56; S: 32; 0: 16; H: 1). 2FeS2 + 11 / 2O2 → Fe2O3 + 4SO2 How much Fe2O3 is produced in 1 day?
World production of chromite (FeCr₂O₄), the main ore ofchromium, was 1.5107metric tons in 2003. To isolate chro-mium, a mixture of chromite and sodium carbonate is heated inair to form sodium chromate, iron(III) oxide, and carbon diox-ide. The sodium chromate is dissolved in water, and this solutionis acidified with sulfuric acid to produce the less soluble sodiumdichromate. The sodium dichromate is filtered out and reduced with carbon to produce chromium(III) oxide, sodium carbonate,and carbon monoxide. The chromium(III) oxide is then reduced to chromium with aluminum metal. (a) Write balanced equations for each step. (b) What mass of chromium (in kg) could be pre-pared from the 2003 world production of chromite?
1.The atmosphere contains several different layers that can be defined according to _____________ or _____________. 2.What is albedo? 3.What are the 3 Cell circulations?
coke formation on catalyst surface cannot be limited by ? a. addition of hydrogen b. addition of hydrochloric acid c.addition of water d. burning off coke
blast furnace makes pig iron containing 3.6% C, 1.4% Si and 95% Fe. The ore used contains 80% FE2O3, 12% SiO2 and 8% Al2O3. The coke analysis shows the presence of 10% SiO2 and 90% C. The flux used is pure CaCO3. The exit gases contain 28% CO and 14% CO2. The coke ratio is 1000 kg/t pig iron. Flux is 400 kg/t pig iron. Calculate per tonne of pig iron: (a) the weight of the slag made, (b) the weight of the ore used, (c) the composition of slag the air required at NTP.
1a) Determine the formulae (show all calculations) represented by the following chemicalanalyses. All values are in weight percentages:i. SiO2 = 36.76, Al2O3 = 62.74ii. SiO2 = 38.0, Al2O3 = 21.5, FeO = 26.6, MgO = 6.3, MnO = 7.6iii. Try to name the minerals if possible. 1b) Please give a balanced reaction forThe dissolution ofi. Anorthiteii. Ca-smectiteiii. Kaoliniteiv. Plot all 3 reactions on a log[Ca/H] vs log[H4SiO4(aq)] graph.v. Add a progress line of stability if a small amount of anorthite is added to a largevolume of water and increasingly more solid is added compared to that volume(assume a closed system). Label key points of interest along that line. Give allreactions.
The production of high-grade iron from hematite and magnetite using a blast furnace involves several reactions as described above. Write the balance step for each reaction. 1. Main source of heat: reaction between air and coke. b. Reaction at the bottom of the furnace: carbon dioxide reacts with unburnt coke toproduce carbon monoxide.
c. Explain types of corrosion in general and provide examples. d. How would you prevent/minimize the failure due to corrosion in this application? e. Explain with relevant points about structure, alloying elements and characteristics. f. Study how heat treatment process (annealing, normalizing & hardening) are effect of changed the properties of materials.
To each digestion flask 200 mL aliquots of 10 different drinking water samples were added. Silver was extracted by a co-precipitation procedure and collected by filtration. The precipitate was digested in 200 μl hot concentrated nitric acid and diluted to 5 mL in a dilute phosphate solution. Standards were prepared according to the following table. The samples were analyzed by graphite furnace AAS. Calculate the concentration of silver in each sample. Are there any problems? How will you address each of the identified problems?
A mixture of ethyne and oxygen is used for welding. Can you justify why a mixture of ethyne and air is not-used?
The most important commercial ore of chromiumis chromite (FeC r 2 O 4 ). One of the steps in theprocess used to extract chromium from the ore is thereaction of chromite with coke (carbon) to produceferrochrome (FeC r 2 ).2C(s) + FeC r 2 O 4 (s) → FeC r 2 (s) + 2C O 2 (g)What mole ratio would you use to convert from molesof chromite to moles of ferrochrome?