Briefly describe the sample preparation method for SEM analysis of the following     A small amount of non-conductive

Q: The cover of the car’s engine is called a hood. The hood is coated with an insulator to reduce…

A: Element Any compound that cannot be broken down into simpler chemicals by regular chemical processes…

Q: Match Column A with Column B. uses a graphite-coated furnace to vaporize the sample A. GFAAS samples…

A:

Q: Which of the following casting technique is used for a metallic product that requires high…

A: Die - casting, investment casting, plaster casting, and sand casting, each provide their own unique…

Q: Describe the role of the following: (i) Si02 in the extraction of copper from copper matte. (ii)…

A:

Q: Solid P, which is an aluminium salt, was analysed. Two tests were carried out and * .the following…

A: A precipitation reaction is the reaction with the formation of an insoluble salt when two soluble…

Q: copper and other minerals, what imaging technique

A: Ans. EPMA is electron probe microanalysis or also known as wavelength-dispersive electron microprobe…

Q: What is the purpose of an auxiliary complexing agent?

A: When a certain substance has the capacity to form a complex with another compound in a solution,…

Q: Questions Describe the steps involved in the preparation of a metallographic sample: Sectioning…

A: Metallographic examination utilises inverted optical light for inspection of material grain Sizing…

Q: ________Miner burps when riding elevator up and out of a mine after having a carbonated beverage for…

A: Fish smell is due to presence of alkaline substance, trimethylamine . When acetic acid is added…

Q: Describe any two of the following techniques employed to synthesized the Nano composite materials, a…

A: Describing any two of the following techniques employed to synthesized the Nanocomposite materials :…

Q: 15. Which of the following is used for size reduction? heating mantle desiccator rotovap pestle &…

A: Size reduction is a process in which the large particles are broken into small particles.

Q: True or False 1. Magnetite is not susceptible to residual concentration. 2.Copper is susceptible to…

A: Residual concentration is the accumulation of valuable minerals on rocks or surfaces which has been…

Q: Solid P, which is an aluminium salt, was analysed. Two tests were carried out and *.the following…

A: Answer

Q: sources of error of determination of iron in iron ore

A: Impurities in the iron from the Blast Furnace include carbon, sulphur, phosphorus and silicon. These…

Q: what is the aqueous NH3 test used for in the copper cycle experiment?

A: 1) To small drop of the solution and add it to some concentrated ammonia in a beaker or test tube.…

Q: AAS is the most widely used instrumentation for the analysis of metal and traces metal samples.…

A:

Q: i) ii) Which metals is classified as a Group 2 cations? What is the selective reagent for Group 2…

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: Used to determine the elemental composition of a pure coal free from moisture and inorganic…

A: Solid fuels can be defined as the various forms of solid material that can be burnt to release…

Q: _ _ _ _ _ _ _ _   Also called as Crushing or pulverizing, it is the process of decreasing the size…

A: 1) Also called as Crushing or pulverizing, it is the process of decreasing the size of the ore.

Q: True or False Leaching of PbCl₂ is ensured when known solution of Group I cations stays hot.

A: Please see explanation.

Q: The color of the flame to detect the presence of iodoform *

A: The iodoform test is considered to be a qualitative test which is used to test the presence of…

Q: Calculate the concentration of the EDTA solution, please show working out.

A: mass of Zn metal taken = 1.0 g  mole of Zn metal = mass molar mass = 1.0 g65.39 g / mole= 0.0153…

Q: Copper is produced from chalcopyrite concentrate from a mixed type ore containing 1.2% CuFeS2…

A: Copper is obtained fron the mixed ore chalcopyrite  and azurite.

Q: Analyze the use of austenitic or ferritic steels in irradiation damage resistance applications in…

A: Austenitic is a type of stainless steel and has the structure of face center cubic. The structure is…

Q: Answer all parts of this question a) Discuss THREE therapeutic advantages of microparticulate…

A: The following questions are answered as follows

Q: Why are the results of flame tests for the alkali metal ions difficult to distinguish? (Choose all…

A: Flame test is used to identify the presence of metal ion particularly group 1 metal ions. It is…

Q: Mass of zinc = 1.050 g. Calculate the number of moles of zinc in the 250 mL flask (show workings)…

A: There are multiple questions asked in a single question,  so as per our guidelines,  I will answer…

Q: What types of metals are usually purified by the method of zone refining? Give an example.

A: Metals are lustrous elements. They are good conductors of heat and electricity. They are malleable (…

Q: Plumber's solder is composed of 67% lead and 33% tin by weight. Describe what happens to this…

A: Plumber's solder is composed of 67% lead and 33% tin by weight.

Q: Reaction E ( CuSO4(aq) + Mg(s) --> Cu(s) + MgSO4(aq) ). Speculate on the identity of this white…

A: In this case, a displacement reaction takes place. The magnesium when reacted with copper sulfate…

Q: 17. This is used as intermediate to produce malleable cast iron. * O Grey cast iron White cast iron…

A:

Q: Some quantity of metallic iron was dissolved in sulfuric acid, and then Titrated by 17,15 mL KMnO4…

A: Metallic iron dissolved in sulfuric acid in terms of FeSO4 Then by Titration with KMnO4, FeSO4…

Q: Write T on the blank provided if the statement is correct

A: Statement 2 and 3 is correct only one is incorrect.

Q: A solution of Cr(NO3)3 is used to electrochemically deposit Cr(s) using a 2.25 amp power supply. If…

A: The mass deposited during electrolysis of Cr is 13.68 g

Q: Anode deposition technique is used to prepare thin films of polymers. * true OError

A: Yes ,thin film of polymer is deposited on anode in this method.

Q: What is the balanced eqauation for the cooper (I) ion being oxidized to the cooper (II) ion by…

A: GIVEN:-

Q: 10 m2 with 7-micron silver coating only in certain areas on I total 50 m2 surface field copper…

A: Silver is considered to be a precious metal. These metals can be recycled from scraps using…

Q: What are possible sources of error that may occur when performing a cyclic voltammetry experiment?…

A: Cyclic Voltammetry is a method/technique which analyses the transfer of electrons in a reaction…

Q: A small pilot plant is being tested to treat a newly found ore feed with 5.15 wt% grade Cu. The year…

A: Given that: weight % of Cu = 5.15 % number of ores treating = 20,000 tonnes per year % recovery =…

Q: Zone refining is used for the:(a) concentration of an ore(b) Reduction of metal oxide(c)…

A: Given options,    (a) concentration of an ore   (b) Reduction of metal oxide   (c) Purification of…

Q: Determine the percentage of iron in a sample of limonite from the following data: weight of sample =…

A: The ratio of mass of one element to the total mass of the sample is termed as mass percentage. The…

Q: If we added AgNO3 to a sample containing KI. The chemical change observed in the test is Select…

A:

Q: The standard addition technique was used for the voltammetric analysis of a Cd2+ sample. From the…

A: For the working electrode we can choose among several different materials, including mercury,…

Q: Why does using bathocuproine work to detect the amount of copper in a sample ? Specifically with…

A:

Q: The standard addition technique was used for the voltammetric analysis of a Cd2+ sample. From the…

A: If we plot the curve, we got this

Q: 10. A 50.0ml solution containing Ni2+ and Zn2+ was treated with 25.0 ml 0.0452M EDTA to bind all the…

A: The titration in which the formation of colored complex is used to determine the endpoint, are known…