Washing is a vital step for any gravimetric analysis, list down the basis on for the selection of a suitable wash liquid.

Q: What percent of X can be extracted with 100 mL hexane?  b) What will be the percent X remaining in…

A: The question is based on the concept of solvent extraction. we have to calculate amount extracted…

Q: From the general balance equation, write the balance expression for a continuous system, at ste…

A: Continuous systems are those types of systems in which  the outlet and inlet signals are same at…

Q: Anna is performing a precipitation Gravimetry on her experiment. She weighed an exact amount of the…

A: Re-dissolving her sample with another solvent.

Q: Complete the table and discussion.   Table 1.1 Preliminary observations of the dissolution…

A:

Q: A controversy broke out as a dead body was found in a bar on Cornelia Street. The media revealed…

A: Given: [CN-] prior to dilution, M Abs@ 725 nm 0.000 0.002 0.040 0.160 0.100 0.390 0.160…

Q: Why must the instrument readout for an unknown fall within the range of of readouts for a series of…

A: Serial dilutions are a set series of dilutions, with a constant dilution factor. Standard curve or…

Q: Justify chromatography is used to separate only color compounds.

A: The process or technique used for the separation of components present in the mixture is termed as…

Q: Explain how a Gravimetric Analysis is performed.

A: Gravimetric analysis is a class of lab techniques used to determine the mass or concentration of a…

Q: What are the applications of re-crystallization in gravimetric analysis? answer at your own words…

A: Recrystallization is a purification technique to separate crystalline product from unwanted…

Q: permanganate

A: Dear student this question is related to end point concept.

Q: Rf value can be matched with to identify the solute Solvent front Solute itself None O Database

A: Given: Retension factor value(Rf value) To find: Identify the solute.  Solution: Rf stands fir…

Q: Suggest various methods to remove temporary and permanent hardness of water with appropriate…

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Q: effective

A: Key points of the video: Turbidity (Clarity of liquid) is measured in JTU from 0 to 100 where 0 JTU…

Q: The interaction between a basic analyte and the residual silanol groups of the stationary phase is…

A: When pH of mobile phase is equal to pKa of silanol then its proton will get deprotonated and basic…

Q: mixed in aqueous solution. If no rea sure to include the proper phases for

A: Balanced chemical reaction  Li2SO4(aq.) + Ca(NO3)2(aq.) ---> CaSO4(s) + 2LiNO3(aq.) Complete…

Q: This refers to a point wherein both liquid phases have the same composition. Hence, extraction is…

A: Answer: This question is based on the Liquid-liquid extraction where certain terms are used to…

Q: Why are two solvent in extraction immiscible?

A: Solvent - - > The solvent are those substance in which the solute is dissolved to form solution.…

Q: A student trying to determine if a white solid is a true hydrate heats the sample and finds that…

A: White solid is heated and it resulted in evolution of H2O. The anhydrous residue obtained waa…

Q: How to assay expectorant KI in details please

A: Potassium Iodide is a chemical compound with formula KI. It is used for medication purposes and as a…

Q: Partition (or Distribution) Coefficient I best way to think about this is to start with a solute…

A: In the given problem we have to describe why the set of liquids used during the solvent extraction…

Q: important hazards to know in doing gravimetric analysis? please include pictures

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Q: what are the important to know in gravimetric analysis?

A: Answer of the question is given below

Q: what fraction will be ?extracted

A: The partition coefficient of A between water and benzene, K=concentration in waterconcentration in…

Q: spectively. Calculate ressure at 298 K

A: The moles and molarity as, NO=4.4130 =0.147Molarity=0.14710 =0.0147

Q: Calculate the molar concentration of the different colour solutions using the data table. (Available…

A: The experiment is based on the process of osmosis.

Q: I underlined the part I need help with it says, " V ↓ by __ %"

A: Decrease in V% has been asked.

Q: A stock salt solution is prepared by dissolving 5.69 g of table salt in water and diluting the…

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Q: why the answer here is E, not D? + what is the difference between equivalent point and ending point?

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Q: This refers to a point wherein both liquid phases have the same composition. Hence, extraction is…

A: Plait Point is defined as the intersection of raffinate-phase and extract-phase boundary curves. At…

Q: explain importance of Gravimetric Analysis when it comes to operation/s of each procedure/method?…

A: Gravimetric analysis is a process or method to determine the quantity of analyte on the basis of…

Q: 11.43%, just before end point

A:

Q: Type the procedure for calibration of burette

A: Burette is an apparatus used in laboratory to measure amounts of liquid within chemical for process…

Q: Because of the risk of lead poisoning, the exposure of children to lead-based paint is a significant…

A: Answer is explained below.

Q: Name three (3) other types of samples that can be analyzed in a typical acidimetric process.Explain

A: Acidimetry, is a quantitative analysis method where the direct or residual titrimetric analysis of…

Q: What is the point of doin a reaction under reflux

A: Given : We have to tell why there is need to do reaction in reflux condition.

Q: Estimation of Dissolved Oxygen experiment  I want 10 Precautions at lest for this experiment

A: Precuations

Q: please explain first than do balancing

A:

Q: If we draw operation line diagram, Compositions of 2 phases are represented in a 2-D graph. Does…

A: If we draw operation line diagram, Compositions of two phases are represented in a 2-D graph, then…

Q: eloom СЗ. Concentration of NH4CI solution: Calculated pK, of NH4*: (show calculations)

A:

Q: If an insufficient amount of liquid unknown had been used how would this have affected the value of…

A: This question is refers to determination of gram molar mass liquid by vapourising the liquid under…

Q: The gravimetric analysis of nickel in copper and iron, what is the purpose of "dipping" the…

A:

Q: Underline the organic solvent(s) given that would work for the extraction: dichloromethane-water,…

A: Pair of organic solvents which is suitable for extraction is, in which both solvents are not…

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: lonic conductivity of solutions. With the data from table 1 determine: a) The molar conductivity at…

A: (a) Steps to be followed: (i) First calculate C (mol/L)1/2 values for all KCl concentrations. (ii) A…

Q: I'm working on a pre-lab report for chemistry regarding retention factors. The question asks what is…

A: Retention factors are related to chromatography experiment. Retention factor is the ratio of the…

Q: This refers to a point wherein both liquid phases have the same composition. Hence, extraction is…

A: We have to tell the name of the point at which both liquid phase have the same composition. Hence,…

Q: Why would an analytical scientist choose to develop internal standard? Give one reason. an assay…

A: Internal standard It is the known concentration of analyte that is to be analyzed and it is present…

Q: The purpose of adding sodium sulfate in the extraction is to decrease the solubility of caffeine in…

A: Given question is :  The purpose of adding sodium sulfate in the extraction is to decrease the…

Q: Q2: Fill the blanks with suitable answers 1: Calculate the expression of analytical compounds for…

A: In chemistry there are many ways to check the deviation of experimental data from the accurate…

Q: cite literature that gravimetric analysis is used to test the purity of squash soup product

A: As demand is increasing for the popular products in the market makers and manufacturers are using…

Q: Write two phenomenon on dispersed particles

A: Colloidal is mixture of one substance  dispersed  microscopically insoluble particles are suspended…