What does it mean to standardize the KMnO4 solution? In the titration, which substance is reduced and oxidized? What is the mole ratio of MnO4-/C2O42- in the chemical reaction in this experiment?

Q: To determine the concentration of an EDTA solution, the following zinc(II) solution is prepared:…

A: metallic zinc (m(Zn) = 0.505 g) is dissolved in dilute sulfuric acid, the resulting solution is…

Q: Which of the following statements are correct for the titration of Fe2+ ion with standard Ce4+ ion?…

A: The reaction that occurs during the titration of Fe2+ and Ce4+ is:

Q: 1. A 0.0250 M Ca(X)₂2 has a pH of 8.049. Ca(X)2 is composed of a Ca²+ cation and an unknown anion X,…

A: Given: The concentration of the salt Ca(X)2 = 0.0250 M pH of the solution = 8.049 We have to find:…

Q: A 4.912-g sample of a petroleum product was burned in a tube furnace, and the SO 2 produced was…

A: The number of moles of excess base is equal to the number of moles of HCl used for back titration.…

Q: What hazards are associated with this lab and what steps are taken to avoid them? Why does adding…

A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…

Q: An analysis was carried out to determine the purity of an aspirin sample. To hydrolyze the sample,…

A:

Q: Determine the molarity of the 10.00 mL standard EDTA solution titrated using 1.000 g zinc sulfate in…

A:

Q: Which of the following statements is/are TRUE regarding the analysis of alkali mixtures containing…

A: An alkaline mixtures of compound can be distinguished by analytical method.

Q: Calculate the % KHP of 1.294 g sample which requires 48.25 mL of NaOH solution during the titration.…

A: Molarity of NaOH is not provided in the question. So I aassumed it to be X molar. Just put the value…

Q: a.) What is the precipitation pH in gravimetric sulfate determination? Why is precipitation not done…

A: a) Sulfate is gravimetrically determined by using barium chloride solution.

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

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Q: Which of the statements given below is correct? A. Iodometry is a method in which I2 solution is…

A: Titration: When a solution of known concentration is used to determine the concentration of an…

Q: For the standardization procedure, 0.2023 g of anhydrous sodium carbonate was dissolved in 100 mt…

A: mass of anhydrous sodium carbonate, Na2CO3(s) taken for standardization = 0.2023 g  Molar mass of…

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: A sample of impure NaOH, which has been partially converted to Na2CO3 by exposure to CO2, is…

A: Given:  Mass of sample = 188.5 mg  Molarity of HCl solution = 0.1065 M  Volume of HCl solution…

Q: 1. A 0.0450 M Ca(X)2 has a pH of 11.079. Ca(X)2 is composed of a Ca²+ cation and an unknown anion X,…

A: Given, Ca(X)2= 0.0450M pH=11.079

Q: Mass of KxFe(C2O4)y · zH2O : 5.60 g Mass of sample : 0.155 g Mass of FeCl3 used in preparation :…

A: Dissociation of the given complex is shown.

Q: Mass of KxFe(C2O4)y · zH2O : 4.70 g Mass of sample : 0.175 g Mass of FeCl3 used in preparation :…

A: Mass of KxFe(C2O4)y · zH2O : 4.70 g Mass of sample : 0.175 g Mass of FeCl3 used in preparation :…

Q: sample of impure NaOH, which has been partially converted to Na2CO3 by exposure to CO2, is analyzed…

A: The question is based on the concept of quantitative estimation. we have to estimate the percentage…

Q: For the standardization procedure, 0.2023 g of anhydrous sodium carbonate was dissolved in 100 mt…

A: Concentration of HCl can be found out from the moles of sodium carbonate. Moles of borate ion can be…

Q: A 1.7483-g sample containing Al(NO3)3, AlCl3, and inert material was dissolved in acid and divided…

A:

Q: Why is it possible to use K2S instead of thioacetamide in precipitating the Group II and Group III…

A: Thioacetamide is widely used in classical qualitative inorganic analysis as an in situ source for…

Q: The cumulative formation constants for the reaction of Co21 with ammonia are log b1 5 1.99, log b2 5…

A: Concentrated ammonia reacts with cobalt (II) ion forming a metal complex. The reaction takes place…

Q: Calculate the solubility of PbCrO4 in a solution that contains 25.0ml of 0.0020M K2CrO4 mixed with…

A: All known compounds can be dissolved in certain solvents whereas they remain insoluble in other…

Q: A mixture containing only KCl (74.55 g/mol) & NaBr (102.89 g/mol) was analyzed by the Mohr method. A…

A: Chloride ion concentration of an unknown sample can be calculated using Mohr method.  In Mohr…

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: The Zn in a 260-g sample of foot powder was titrated with 2 L of 0.5 M EDTA. Calculate the percent…

A: Given that -  Mass of Sample of Zn = 260 g  Volume of EDTA Solution = 2 L  Molarity of EDTA Solution…

Q: In iodimetry as a titrant is used: I solution; Na,S2O3 solution KI solution; KIO; solution;

A: The titrant used in the iodimetry is I2 solution.

Q: In a redox titration, 20ml of Fe(II)SO4 was completely oxidised by 12.5ml of 0.02mol/L acidified…

A: A numerical problem based on redox reaction, which is to be accomplished.

Q: Differentiate the Fajans method from the Volhard method of precipitation titrimetry, Include key…

A: Precipitation titrations are a special type of titrimetric method involving the formation of…

Q: A 10 mL sample of sulfuric acid solution required 16.85 mL of NaOH solution in a titration. Each mL…

A: TITRATION  Titration is a method of quantitative analysis for the determination of the concentration…

Q: Use the data below to determine the % by mass of Fe to TWO decimal places, if a 0.021 M KMnO…

A: the correct answer is as follows:

Q: In the following experiment, you will titrate 2.00 mL of 0.0100 M KMnO4 in base with 0.0200 M…

A: Given: Volume= 2.00 mL= 0.002 L Molarity of KMnO4= 0.0100 M Molarity of NaHSO3= 0.0200 M

Q: 25.00 mL of a saturated Ca(OH)2 sample requires 22.50 mL of 0.0250 M HCl to neutralize it. Calculate…

A: Given data contains, Volume of Ca(OH)2 is 25.00mL . Volume of HCl is 22.50mL. Molarity of HCl is…

Q: if a 1.25g sample of magnesium oxide (98.9%) were titrated with 70ml of 1.04N of sulfuric acid, what…

A:

Q: Write the balanced net ionic equation for the precipitation of lead (II) hydroxide from aqueous…

A: A net ionic equation is the chemical equation that shows only those ions, elements and compounds…

Q: Which of the following statements is correct for the titration of Fe2+ ion with standard Ce4+ ion?…

A:

Q: What is the primary use of standard K2Cr2O7 solutions?

A: Potassium dichromate (K2Cr2O7) is primarily used for volumetric analysis to determine the weight of…

Q: Determine the molarity of the 10.00 mL standard EDTA solution titrated using 1.000 g zinc sulfate in…

A: 1- First determine the moles of ZnSO4 :  Moles = [ mass / molar mass ]  Moles = [ 1.000g /…

Q: The substance to be analyzed - is white, highly soluble in water salt. Interaction with water…

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Q: 1) Assuming that 0.433 g of precipitate is recovered calculate the percent by mass of SO42− in the…

A: Molar mass of sulphate, SO42- = 32.1 +4×16 = 96.1 g/mol Given Data: Mass of unknown sulfate salt =…

Q: In following these steps . Complete the table and provide th given chemical reactions in the…

A: Since the table has not been given, thus only the reactions of group 3 cations are provided. Group 3…

Q: What is the most appropriate glassware to be used in transferring a 1.000 M Na2CO3 primary standard…

A: Practical physical chemistry:

Q: What volume of 0.80 M HCl will be required to titrate 36.2 grams of NaBrO (fw = 118.9 g/mol) to the…

A: Acid reacts with base to form salt and water. One mole of HCl react with one mole of NaBrO to form…

Q: 4. Which of the following statement is true A. The change in potential in the equivalence-point…

A: Since you have asked multiple questions we will answer the first one for you. To get the remaining…

Q: How to qualitatively search for NO3- and NO2- in the presence of Br- anion? Explain with reaction…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Why is there a need to standardize the NaOH solution? -Why is there a need to use CO2-free water in…

A: Standardization is the process of determining the exact concentration i. e. Molarity of a solution.…

Q: 1.50 mL of 0.15M Fe2(SO4)3 is diluted with deionized water to 25.00 mL in a volumetric flask. What…

A: Dilution is the method to decrease the concentration of a solution by mixing the solvent. The change…

Q: If a 3g sample of zinc oxide, 95% ZnO, were treated with 50ml of 1.1230N sulfuric acid in the usual…

A: