,Consider the following reaction 10CO +2Mn2+ +8HO SHCO +2KMno" +6H* a. How many milliliters of 0.165 M KMn04 are needed to react with 108.0 mL of 0.165 M oxalic acid? b. How many milliliters of 0.165M oxalic acid are required to react with 108 mL of 0.165 M KMnO4?
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- In order to form Ba(IO3)2, 500 mL of 0.5000 M Ba(NO3)2 was mixed with 500 mL of 0.0500 M NaIO3. Ksp= 1.57x10^-9How many millimoles of Ba(NO3)2 are needed to completely react with NaIO3?What is the limiting reagent?What is the excess reagent?Volume of 0.200M K2C2O4 Is required to react completely with 30.0 ML of 0.100 M Fe (NO3)3 Choose one A. 15.0 ml B. 10.0 ml C. 30.0 ml D. 22.5 mlWhat is the cobalt(II) ion concentration in a solution prepared by mixing 357 mL357 mL of 0.396 M0.396 M cobalt(II) nitrate with 475 mL475 mL of 0.399 M0.399 M sodium hydroxide? The ?spKsp of cobalt(II) hydroxide is 5.92×10−155.92×10−15 .
- A 1.5000-g sample of cereals was analyzed for nitrogen using the Kjeldahl procedure. The receiving flask contained 69 mL of 0.02 M HCl. After the ammonia was collected, the solution was titrated with 0 M NaOH, requiring 11.72 mL to reach the methyl red endpoint. Calculate and percent protein in the sample (f=5.70). Ans. in 3 SFsChemistry We complete 10 cm3 to a volume of 0.1 M KBr solution to 30 cm3 and titrate it with 0.05 M Ag+. what is the error of indication if 1.0 cm3 of K2CrO4 solution is used? (molar mass of K2CrO4=194g/mol)A standard solution of (FeSCN)2+ was prepared by mixing 5.00 mL of 0.00200 M KSCN , 6.00 mL of 0.220 M Fe(NO3)3 , and 14.00 mL of 0.050 M HNO3. What is the total volume of solution in the container after all reagents have been mixed? (please type answer not by hend )
- The thiourea in a 1.455 g sample of organic material was extracted into a dilute sulfuric acid solution and titrated with 37.31 mL of 0.009372 M Hg2+ via reaction: 4(NH2)2CS + Hg2+ →[(NH2)2CS]4 Hg2+ Is this an example of total analysis technique or concentration technique? Explain. Calculate the percent (NH2)2CS ( 76.12 g/mol) in the sample. What is classification of the analysis based on the amount of sample and amount of analytes present? Explain.If 100.0 mL of 0.167 M Na2SO4 is added to 100.0 mL of 0.897 M Pb(NO3)2, How many grams of PbSO4 can be produced? ??2??4(??) + ??(??3)2(??) → 2????3(??) + ????4(?)One milliliter of a certain KMnO4 solution will completely react with 0.3400 gFeSO4: Fe2+ + MnO4 − → Fe2+ + Mn2+;Unbalanced, acidic medium 0.175 mL of the same KMnO4 solution will also react with 1.00 mL of potassiumtetroxalate (KHC2O4 · H2C2O4) solution, how many milliliters of 0.253 M NaOH willreact with 3.52 mL of the potassium tetroxalate solution, assuming that allhydrogens of potassium tetroxalate are titratable?
- Assume that the molarity of the standardized KMnO4 solution is 0.025 M and it takes 23.00 mL to reach the endpoint when titrating a dilute sample of H2O2. How many moles of H2O2 are in the diluted sample initially? Group of answer choicesFollowing the monograph procedure, determine the weight in grams of sodium carbonate (MW-106 g/mol) used to standardize a 0.987 N sulfuric acid solution. 1. Consider that the burette was completely filled to the 0 mL mark before titrating. What is the volume of titrant consumed based from the image below? A. 22.9 mL B. 21.2 mL C. 21.3 mL D. 22.7 mL 2. What is the unknown weight (grams) in the problem? Your Answer:30.0 mL of 0.400 M Zn²⁺ is mixed with 100.0 mL of 0.200 M F⁻ (Ksp ZnF₂ = 0.030). In the mixture you would observe