Titration of 0.1756 grams primary standard sodium oxalate (134.00 g/mol) dissolved in 50 mL water with 5 mL concentrated sulfuric acid required 32.1 mL of a potassium permanganate solution.   redox method used? Which served as the oxidizing agent? Which served as the reducing agent? What is the total number of electrons involved in the redox reaction?

Q: Brass is an alloy consisting mainly of copper and zinc. To determine the percentage of copper in a…

A: A numerical problem based on extraction of metal from alloy, which is to be accomplished.

Q: A 0.9600 M NaOH solution was diluted with a factor of 4. Vz= Then the diluted solution of NaOH was…

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Q: A student wanted to determine the percent of NaOCI in a commercial bleaching solution. He diluted…

A: Given data, Mass of bleach = 5.0g Volume of flask = 100mL=0.1L Volume of sample = 25mL=0.025L…

Q: A precipitate of AgCl + AgBr weighs 0.8132 g. On heating on a current of Cl2, the AgBr is converted…

A: Assuming the mass of AgCl = a g Mass of AgBr = b g

Q: 1) Potassium permanganate solutions used in oxidation-reduction titrations are often standardized…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: ou are given a sulfuric acid solution of unknown concentration.  You dispense 10.00 mL of the…

A: Titration is one of the most common method of qualitative analysis of substances given. It is done…

Q: Benzoic acid, C6H5COOH, dissociates in water as shown in the equation below. A 40.0 mL sample of an…

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

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Q: A student titrates samples of a base with a standardised acid. The titration values obtained for…

A: Given that,   Student titrates samples of a base with a standardised acid The titration values…

Q: The molarity of an unknown monoprotic acid 25.00 mL aliquot titrated with 9.37 mL of 1.15 M NaOH is…

A: The expression to find the unknown concentration from the known value is M1V1=M2V2 where  M1 and V1…

Q: A solution containing 25.0 mL of H2C2O4 required 13.78 mL of 0.04162 N KMnO4 for titration forming…

A: Given,  25.0 mL of H2C2O4 required 13.78 mL of 0.04162 N KMnO4 for titration forming Mn2+  and CO2…

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: Is prepared by dissolving a definite weight of a substance in a definite volume. a. primary…

A: During the experiments, a standard solution is made to carry out the reaction and know the amount 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: 2. A standard solution of FeCls was prepared and its molar concentration was determined to be 2.000…

A: This is one of the dilution problem, here we are changing concentration of solution. In dilution…

Q: (Eqn. 1)   1 OCl− + 3 I− + 2 H+ → 1 I3− + 1 Cl− + 1 H2O (Eqn. 2)   2 S2O32− + 1 I3− + 0 H+ → 3 I− +…

A: Given reactions are Reaction (1):    1 OCl− + 3 I− + 2 H+ → 1 I3− + 1 Cl− + 1 H2O Reaction (2):  2…

Q: Suppose a group of students put 2.92 grams of an unknown solid acid into a 250-mL volumetric flask…

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Q: The titration of 36.7 mL of sulfuric acid solution requires 43.2 mL of standard 0.236 M sodium…

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Q: Potassium permanganate solutions may be standardized by titrating against primary standard sodium…

A: Mass of Na2C2O4 = 0.2168g  Molar mass of Na2C2O4 = 134g/mol  Moles of Na2C2O4 = 0.2168g÷134g/mol =…

Q: What is the pH of the saturated solution of iron(II) hydroxide at about 98° С: = 5.0x10-13 KsP…

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Q: A student performed titration of an unknown reducing substance (molar mass 200. g/mol) in a sample…

A: Answer: This question is based on the calculation of molar concentration of unknown sample with the…

Q: A 15.00 g sample containing mixed alkali and other inert components was dissolved and diluted to 300…

A: The explanation is given below-

Q: Which of the following solids will provide the greatest concentration of CI "ions if one mole of…

A: Higher the value of the Ksp, higher will be the solubility of solids. Ksp is not defined for strong…

Q: In the previous question you calculated the molarity of CaCO 3 in a 150.0 sample of wetlands water…

A: Alkalinity refers the the capacity of water to resit the pH of  a solution.  It is the strength of a…

Q: A 0.1824-g sample that contains both NaCl (MW= 58.442) and NaBr (MW= 102.89) is titrated with 0.1052…

A: Answer: When solution containing NaCl and NaBr is mixed with solution of silver nitrate than…

Q: For standardization of 1.0M NaOH solution, a 0.3000 g of KHP was dissolved in 50.0 mL distilled…

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Q: During your standardization experiment, you measured 0.0521 grams of potassium hydrogen phthalate…

A: Molarity is defined as no.of moles of solute divided by volume of solution in liter.

Q: What do you understand about the manufacture of

A: Addition of solvent is called dilution , in dilution process no.of moles of solute is constant…

Q: 0.5131-g sample containing KBr is dissolved in 50 mL distilled water. Titrating with 0.04614 M AgNO3…

A: Mohr titration is a way to quantify Br- and Cl - ions in the solution The reaction is KBr(aq) +…

Q: A 25.0mL acetic acid sample was titrated using exactly 69.72 mL of a 0.30M sodium hydroxide solution…

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Q: - Calculate the equivalent weight and normality for a solution of 6.O M H3PO, given the following…

A: The equivalent weight of the compound can be defined as the ratio of molecular weight by no. of…

Q: Show complete solution. Round-off your answers to four decimal places The amount of copper in a…

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Q: 1. Into a 250-mL beaker, use a pipette to precisely add 10.00 mL of the hydrogen peroxide, H2O2,…

A: In titration the volume of solution added from burette is to be calculate from the change in final…

Q: In the Vitamin C analysis, you determined Vitamin C content in a tablet using redox titration…

A: Vitamin C contains ascorbic acid and this acid is a diprotic acid while KClO3 is monobasic base. So…

Q: (4b-401-1.53-1) An intern working in a research lab knocks over a beaker containing an important…

A: For such type of questions, we first calculate the number of moles present initially, and then after…

Q: Using sodium carbonate as the primary standard, a solution of hydrochloric acid was analyzed using a…

A: Solution stoichiometry involves the calculation of concentration of solutions in the given…

Q: The titration below was performed by placing 10.00 mL solution in an Erlenmeyer flask and titrating…

A: The given volume of the basic solution present in the Erlenmeyer flask (V1) = 10.00 ml Molarity of…

Q: Which of the statements given below is correct? A. Iodometry is a method in which 12 solution is…

A: A.Is correct statement The presence or absence of elementary iodine signals the end point of…

Q: If the initial volume reading for the first titration was 0.16 mL and the final volume reading was…

A: Volume of iodine that was used can be calculated by  the difference of reading. volume of iodine…

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

A: Practical physical chemistry:

Q: A 10.00 mL vinegar sample is pipetted into an Erlenmeyer flask and titrated with 24.77 mL of 0.575 M…

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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: Phosphate buffered saline (PBS) is buffered to a pH of 7.40, the pH of human blood, with the H₂PO4…

A: Given: pH=7.40Ka=6.31×10-8

Q: Oxalic acid dihydrate (H2C204 2H2O) can be used to standardize NaOH solution through acid-base…

A: During titration, number of moles of base and number of moles of acid should be equal. In the…

Q: 0.5 M of stock solution is given to be used for Titrant 1. Titrant 2 is going to be created by…

A: Given :-  Initial concentration (M1) = 0.5 M  Final concentration (M2) = 0.1 M  Final volume (V2) =…

Q: Chlorine in wastewater could be digested, isolated and converted to HCl and could be titrated with…

A: Wate water contains many compounds which contaminate it. But these can be removed by many chemical…

Q: The town of Pawtucket, RI has two different source waters, a groundwater and a surface water. The…

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Q: For the titration of HOCl in bleach solution by Na2S2O4 the following reactions are used: HOCl-(aq)…

A: Reaction between HOCl in bleach solution and Na2S2O4 are represented as: HOCl-(aq) + H2O(l) + 2I-…

Q: Please help me out with making flowchart with thes steps.    Write the result.  Procedure   1.…

A: The flow chart for the given steps is shown below