Why is sodium oxalate the primary standard for the determination of concentration of KMnO4 solution?

Q: Enumerate at least 3 specific medical applications of complexometric titration and discuss each.

A: The ligand is a species that contains an unshared electron pair or a negative charge. This electron…

Q: Sometimes it is not possible to indicate the end point of a titration. a) How can one proceed then…

A: The question is based on the concept of titrations. it is a volumetric technique to determine the…

Q: Why alternating current is used for conductometric measurements? What will happen if large…

A: (f)  When DC current is used, it cause the polarization of electrodes and electrolyte which leads…

Q: What is the importance of calibrating pH electrode and weighing balance during buffer preparation?…

A: Answer - According to the question - It is important to calibrate your pH meter regularly to ensure…

Q: Which indicator is used in the complexometric titrations of zinc with EDTA? Define Hardness of…

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Q: What is the role of cobalt glass for the flame test of potassium? Explain. Why was the flame test…

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: Why is the use of high-precision volumetric material essential for titration?

A: Volumetric analysis is a technique used to determine the unknown concentration of a reactant with…

Q: What volume of 0.100 M MgCl2 must be diluted to exactly one liter in order to prepare a solution…

A: The concentration of the concentrated MgCl2 solution = 0.100 M The ionic strength of the required…

Q: Discuss the advantage and disadvantage of Wijs method of iodine value determination. What…

A: The advantages and disadvantage of the wijs method is given below.

Q: Show by calculation how could you prepare 250 ml of 0.1N Na,CO; from the solid primar standard of…

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Q: 500 mL of river water was subjected to sulfate determination by the barium gravimetric method. The…

A: The sulfate ions present in the river water are precipitated as barium sulfate.  The volume of water…

Q: what is the colour of the CuCl when it is filtered on the Buchner funnel?

A: Given : To determine the colour of CuCl when it is filtered on the Buchner funnel.

Q: In a redox titration involving potassium permangante with oxalic acid,  What is the purpose of the…

A:

Q: What does it mean to standardize the KMnO4 solution? In the titration, which substance is reduced…

A: The questions are based on the concept of redox titrations. It involves titration of potassium…

Q: 11. Which is a highly purified compound that serves as a reference material in titration? A.…

A: Please find your solution below : Primary standard is a highly purified compound that serves as a…

Q: Why was the flame test used for the qualitative determination of K and Na?

A: The identification or determination of the ions present in a sample is done using qualitative…

Q: Determine the molar concentration of an EDTA solution of which 26.44 mL were required to titrate a…

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Q: Why  is it essential that some undissolved Ca(IO3)2 remain in the solution to be measured?

A: Ca(IO3)2 dissociates to corresponding ions when dissolved in water.

Q: the MOST appropriate glassware to be used in transferring a 1.000 M Na2CO3 primary standard solution…

A: Proper glassware should be used in the lab to ensure that there are no spills and loss of reagents…

Q: Precipitate in gravimetric assay of iron (III) is: Fe(OH); Fe,O3 Fe2(SO4)3 Fe(SCN)3

A: Precipitate in gravimetric assay is used to separate ions from solution by using a precipitation…

Q: 6) Why EBT indicator is not used for the determination of Ca-hardness?

A: An indicator is a compound which combines with metal in complexometric titration and in the free…

Q: What is the Ksp expression for the dissolution of AgBr?

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Q: etermin

A: The absolute technique in which mass can be used to find quantity needed to electrolyze the…

Q: Why did the colour of the solution in the conical flask change at the end of the titration?

A: In the titration there is color change at the end.

Q: Why is EDTA an appropriate titrant for the determination of water hardness?

A: In total hardness analysis of water, EDTA is used as the source of quantifying the total hardness…

Q: what are the methods to know in the gravimetric analysis technique

A: A question based on general chemistry that is to be accomplished.

Q: If 25,0 cm3 of the NH3 (concentration 0,10 mol∙dm–3) is titrated with the HCl (concentration 0,10…

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Q: What is selective precipitation?  What is confirmatory test and its significance?  What are the…

A: In selective precipitation only specifically the one which is desired is precipitated in presence of…

Q: Does the cell voltage increase or decrease when 5 mL of 6 MHCl was added to the solution containing…

A: Given : Concentration of NH3 added = 6 M Volume of NH3 solution added = 5 mL And the half cell is…

Q: The concentration of ammonia in a water sample can be measured by electrode. Why does the pH of each…

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Q: What is the ionic strength of 0.10 M ZnSO4?

A: A chemical compound consists of two or more different elements which are bonded with each other…

Q: Why is it necessary to use a buret for measuring standard AgNO3 solution in Volhard?

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Q: why Mg (II) must be added when EDTA is standardized using a calcium standard solution and Eriochrome…

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Q: Explain how you would analyse Fe(OX).2H2O for iron and oxalate if you were provided with a…

A: FeC2O4.2H2O has Fe2+(aq) as the cation and oxalate ion, C2O42-(aq) as the anion.

Q: In a hardness of water determination like the one performed in this experiment, it was found that a…

A: The equation used to determine the molarity of water is written below in which M1 is the molarity of…

Q: After titration, weight percent of oxalate in K3[Fe(C2O4)3] (MW: 437.2 g/mol) sample was determined…

A: Given;  Actual weight % of oxalate ion=55.8% The molar mass of  K3[Fe(C2O4)3]=437.2 g/mol. The molar…

Q: The equilibrium constant for the dissolution of Mg (OH) 2: Kps = 5.6 x 10-12 What is the molar…

A: Given data,Ksp of Mg(OH)2=5.6×10-12

Q: Why is it not necessary to know the exact volume of deionized water added when preparing the samples…

A: Since we know the volume and concentration of the acid or base taken for the titration  hence the…

Q: Condition of permanganatometric titration of sodium oxalate includes: pH = 1 and heating of analyte…

A: Permanganatometric titration is a technique used in chemical quantitative analysis. It is a type of…

Q: In precipitimetry, can KSCN be used as a titrant and primary standard?

A: In precipitimetry, can KSCN be used as a titrant and primary standard? Answer is given below with…

Q: Titration of 25.0 mL of a 0.0500 M Zn2+ solution with 0.0550 M EDTA in a solution buffered at pH 8.…

A: Calculation of the concentration of Zn2+ before addition of the titrant: Calculation of no. of…

Q: What is the fluoride ion concentration for a saturated solution of SrF2 if the Ksp for SrF2 is 2.5 x…

A: Given, KSp for SrF2 = 2.5 x 10-9  [F-] = ?

Q: Change of indicators colour is related to the change of the .A Structure .B Intramolecular…

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Q: At pH 7, what metal ions can be titrated by EDTA?

A: In complexometric titrations, EDTA requires a certain minimum pH for titrating each metal ion. The…

Q: A solution prepared by mixing 60.0 mL of 0.360 M AgNO, and 60.0 mL of 0.360 M TINO, was titrated…

A: (1) AgBr Precipitate will form first, as we have Ksp Value for AgBr is lower then…

Q: What is the acid/base ratio? Why is it important in the titrimetric process?

A: Acid base ratio is the exact amount of acid and base required to obtain a desired pH. This value can…

Q: 7. In potentiometric measurement, any change in cell potential is due to a change in the potential…

A: Change in the cell potential in potentiometer.

Q: DETERMINATION OF WATER HARDNESS BY EDTA TITRATION 1. Why is it needed to add a pH 10 buffer to the…

A: Interpretation :  We have to tell it is need to add a pH 10 buffer to sample during EDTA titration…

Potentiometric Titrations

Potentiometric titration is one of the important titration methods and is mainly carried out to characterize acid solutions. It follows a method similar to that of the normal titration technique, but the main difference is that there is no indicator used in the potentiometric titrations. Instead of using an indicator, electrodes are employed for monitoring the whole titration process. A scientist named Robert Behrend did the potentiometric titration for the first time, and it was done using the mercurous solution and potassium chloride.