What is the role of collectors in Froth Floatation process?

Q: Give one reason why we cannot reuse boiling chips?

A: Boiling chips are small, porous stones that are made of calcium carbonate or silicon carbide. It is…

Q: Write the principle behind the froth floatation process. What is the role of collectors in this…

A: Various processes are used for extraction of minerals. These minerals are very useful for…

Q: What substance is used to help dry your sample rapidly?

A: The substances that rapidly absorb moisture from the surrounding atmosphere or dry it out are called…

Q: What problems can occur if a reaction is refluxing too fast or slow?

A: Refluxing involves heating of the chemical reaction for a specific amount of time and  cooling the…

Q: Need to find percent recovery of crude caffine and purified caffine

A: Given that -  Mass of Caffeine in tea bags = 550 mg  Mass of Crude Caffeine = 109 mg  Mass of…

Q: Briefly discuss some of the operations that are typically performed on a part after it has been…

A: Solidification is the process in which transformation of a liquid to a solid takes place. In…

Q: Enumerate three properties of a good extracting solvent in liquid-liquid extraction.

A: Liquid-liquid extraction is a technique of separation of desired constituents from a solution by the…

Q: One of the most important methods of sedimentation through which we obtain layers with high adhesion…

A: One of the most important methods of sedimentation through which we obtain layers with high adhesion…

Q: Write down the flow chart of Hand molding process for the manufacturing of suppositories?  Please…

A: Answer -  Suppositories - Suppositories are generally made from solid ingredients and drugs which…

Q: What is the benefit of using fluted filter paper instead of not folding it?

A: “Fluted “ filter paper (LEFT) is used when we wish to separate a liquid and a solid, keeping the…

Q: What are the physical states of dispersed phase and dispersion medium in foam rubber.

A: A phase is the state of a system. Phase can be solid, liquid and gas. When the solution forms…

Q: What is the best type of stirring device to use for stirring a reaction that takesplace in the…

A: Using basic concepts handling of instruments of laboratories.

Q: (a) What are the constituents of ‘copper matte’? (b) What is the role of depressant in froth…

A: a. The constituents of copper matte are  Cu2S and FeS

Q: How can you judge whether the amount of heat applied to a reflux apparatus is sufficient but not too…

A: Answer - According to the question - We can judge it by the solvent's boiling point which is being…

Q: Why is it important to pre-treat the solid before leaching?

A: It is important to pre-treat the solid before leaching because of Agglomeration ( this stage…

Q: Properties of slurries in copper cmp?

A: Solution- Definition- What is copper CMP-Cu CMP (copper chemical mechanical polishing) is a crucial…

Q: Describe a method for determining the number of plates in a column?

A:

Q: Which statement about reflux setups is NOT correct? The boiling temperature of the solvent overlaps…

A: Refluxing allows the heating of the solution without the loss of solvent. The solvent vapors are…

Q: Precautions for filter paper

A: Filter paper: It is a paper that acts as a semi-permeable barrier for the mixture of solid and…

Q: What happen to ink in the filter paper strip which is store in isopropyl alcohol for 15 minute

A: Given: To determine what happen to ink in the filter paper strip which is store in isopropyl alcohol…

Q: Determine the moisture content of the crystalline solid that weighs 4.8756g after staying in the…

A: The weight reduced on heating will give the amount of moisture content in the solid.

Q: Why is it important to condition a pipet before use?

A: The important condition to use pipet for experiment is to rinse it thoroughly with a solution to get…

Q: 7) Describe how to prepare a dried sample fit for melting point analysis.

A:

Q: Emulsion is formed during extraction at:

A: option a

Q: Water is a good solvent used for extraction process. What are the advantages of water as menstruum.…

A: A solution can be defined as the mixture that consists of two components; solute and solvent. Here…

Q: Moving forward in different labs we will not be telling you what solution to prime your filter paper…

A: We know filter paper is used in separation techniques,  so there was some prime solution in…

Q: why should a small volume of the cold solvent be used for rinsing the pure crystal?…

A: Using a cold solvent, the impurities present in the surface of pure crystal is removed by rinsing…

Q: Write the Separation of heavy metals using solvent extraction technique.

A: Solvent extraction is an analytical method in which constituents are separated based on their…

Q: . What is the difference between temporary and permanent hardness?

A: Difference between temporary and permanent hardness :

Q: What is the practical application of decorative coating? (With a diagram)

A: Decorative coatings for packaging began with simply metalizing polymer films and papers, which gave…

Q: crucible and precipitate are dry?

A: For precipitate are dry:                        Pour the methanol into the crucible ,swirl gently ,…

Q: Consider that you need to use one of these casting to produce a widget of uniform high hardness and…

A: Answer  cold mould on cold base with nucleating agent added

Q: Which refluxing apparatus is set up to keep moisture out? A OC O B and C OA OB none • Ren B PAGINION…

A: To keep the moisture out of your reaction, we have to use a drying tube and the inlet adapter in the…

Q: What should we use d) To hold a very hot crucible: _________________ e) To hold test tubes so that…

A: (d) Crucible is an apparatus used to heat Chemical materials over burner or inside of over , where…

Q: Importance of Water Sampler

A: To observe and measure how water quality changes over time.

Q: (b) Mention any two-feed stock used for the production.

A: Feed stock solution is the raw material used for processing or manufacturing other products.

Q: Explain the fuctions of each part of the reflux set-up

A: Reflux setup consist of three parts -- 1) A heating system 2) a round flask 3) a condenser.  It is a…

Q: ult of analysis by sieving

A: Duration of agitation is the time for which the sieves are shaked to allow particles to pass through…

Q: Balance the

A:

Q: Table 12.1 cont. These photos are a collection of four photos showing the results of flame tests…

A: Different salts give different colored flames when they are put in a flame. As every salt has a…

Q: The rotovap works to efficiently evaporate solvents by

A: Rotovap can work to efficiently to evaporate solvents by  1. Reducing the pressure to lower the…

Q: Materials: Wash Bottle Stirring Rod Desiccator Burette/Buret Pipette/pipet Volumetric Flask…

A: A chemistry lab contain a lot of materials other than the chemicals for carrying the reaction…