6. The purity of a sample of sodium oxalate, Na2C2O4, is determined by titrating with a standard solution of KMnO4. If a 0.5116-g sample requires 35.62 mL of 0.0400 M KMNO4 to reach the titration's end point, what is the %w/w Na2C2O4 in the sample.

Q: 5. A 0.8162-g sample of a mixture consisting of NaBr, Nal, and NaNO3 was analyzed by adding AgNO3 to…

A:

Q: A student weighs out 1.215 g of an impure KHP, dissolves the sample in 100. mL DI water and titrates…

A: kindly find the answer attached

Q: 75.0ml of 0.085 m potassium sulfate is added to 50.0mL of 0.055M tin (II) nitrate forming a solid…

A: The balanced reaction is: In this reaction, the solid product is generated, hence the ionic…

Q: Will KClO4 precipitate when 20 mL of a 0.050-M solution of K+ is added to 80 mL of a 0.50-M solution…

A:

Q: A solution of HCIO4 was standardized by dissolving 0.4008 g of primary-standard- grade Hgo in a…

A: Given data,Mass of HgO=0.4008gVolume of HClO4=43.75mL=43.751000L=0.04375L

Q: 15. The alcohol content in a 10.0 g sample of blood from a driver required 4.23 mL of 0.07654 M…

A: The alcohol content in a 10.0 g sample of blood from a driver required 4.23 mL of 0.07654 M K2Cr2O7…

Q: 25 mL of a bleach (NaOCl) sample is diluted to 500 mL. An excessive amount of KI is added to the 20…

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

Q: A 0.3285 g sample containing chloride and inert material is titrated with 0.1012 M AgNO3, requiring…

A:

Q: 11. A suspension of milk of magnesia, Mg(OH)2, is analysed by back titration. A 1.0391 g sample is…

A: Solutions                   Calculate the weight percentage of magnesium hydroxide in the sample..

Q: In an analysis to determine the concentration of Sn²+( (aq) ions in a tin ore solution, a 25.0 mL…

A:

Q: When 38.0 mL of 0.1250 M H2SO4 is added to 100. mL of a solution of PbBr2, a precipitate of PbSO4…

A: Mass of PbSO4 = 0.0471 g Molar mass of PbSO4 =303.28 g/mol Volume of PbBr2 = 100 mL

Q: A student weighs out 1.051 g of impure KHP, dissolves the sample in deionized water and titrates it…

A: Given data Mass of impure KHP = 1.051 g Molarity of NaOH  solution = 0.1101 M Volume of NaOH…

Q: A 50.0 mL solution of Ca(OH)₂ with an unknown concentration was titrated with 0.340 M HNO3. To reach…

A:

Q: 6.) One way to determine the amount of nitrogen in a sample is through a method called Kjeldahl…

A: HCl is monobasic acid and NaOH is monoacidic base Therefore, for neutralization, moles of NaOH used…

Q: the ascorbic acid found in one 500.0 mg tablet. What is the percent vitamin C by mass in the tablet?

A:

Q: A titration of a 0.7879g sample potassium hydrogen phthalate, KHP (GFW= 204.23g/mole), required…

A:

Q: The alcohol content in a 10.0-g sample of blood from a driver required 4.23 mL of 0.07654 M K2Cr2O7…

A: The number of moles of solute to the volume of solution in liters is known as molarity.

Q: A 0.4723-g sample of primary-standard-grade Na2CO3 required 34.78 mL of an H2SO4 solution to reach…

A:

Q: 6. A buffer is prepared by adding 20.0 g of sodium acetate (CH3COONa) to 500 mL of a 0.150 M acetic…

A:

Q: The calcium in a 200 mL sample of water sample was determined by precipitating the cation as CaC2O4.…

A: Solution- The concentration of Ca that is present in water is to be determined in the units of ‘g’…

Q: 7.A solution is prepared by dissolving 0.030 mol of potassium perchlorate in 75 mL of hot water.…

A:

Q: The concentration of hydrogen peroxide in a solution is determined by titrating a 10.0- mL sample of…

A: Oxidizing agent is the species which is reduced itself in reaction. Reducing agent is the species…

Q: Some wastewater stream contains 0.015 M Hg22+. Some chemical engineer decides to remove it by…

A: Concentration of Hg22+ in waste water = 0.015 M Volume of waste water taken = 100 mL Concentration…

Q: The calcium (40.078 g/mol) in a 500.0 mL sample of natural water was determined by precipitating the…

A: Molar concentration is measure of concentration of chemical species, in particular of a solute in a…

Q: A 3.00 mL bleach (NaOCI is the active ingredient) sample is mixed with potassium iodide and acid to…

A: The overall reaction taking place during this titration is- ClO- +2S2O32- +2H+→Cl- +S4O62- + H2O…

Q: A precipitate of AgCl + AgBr weighs 0.8132 gram. On heating in a current of chlorine, the AgBr is…

A: Atomic Mass of Br - 79.904 u Atomic Mass of Cl - 35.5 u Molar mass of AgCl - 143.32 g/mol Molar mass…

Q: KHP (potassium hydrogen phthalate, KHC8H4O4

A: Molarity = Moles of solute/ volume of solution (in L) Moles = Mass in gm/molar mass

Q: A 0.450 g sample of impure CaCO3(s) is dissolved in 50.0 mL of 0.150 M HCl(aq). The equation for the…

A: The objective of the question is to calculate the mass percentage of calcium carbonate (CaCO3) in…

Q: A solution containing KCl (74.551 g/mol) is analyzed by the Mohr method. A 0.5863 g sample is…

A: Solutions                                 Given that A solution containing KCl (74.551 g/mol) is…

Q: The purity of a sample of sodium oxalate, Na2C2O4, is determined by titrating with a standard…

A: The balanced chemical equation has the number of atoms of the reactants is equal to the atoms count…

Q: In a titration of KOH, 0.0725 g of KHP is weighed into a flask and dissolved in deionized water. The…

A: Molar mass of KHP is 204.22 g/mol. Calculation of no. of mol of KHP: Since KHP is a monoprotic…

Q: 0.70N

A: Given data set: Mass of potassium dichromate= 20 g Molar mass of potassium dichromate= 294 g Volume…

Q: A sample of pure sodium oxalate weighing 0.1050 g is ignited [Na2C2O4 (s) --> Na2CO3 (s) + CO (g)]…

A: Given: weight of sample of pure sodium=0.1050g volume of  H2SO4 required for complete…

Q: The concentration of acetylsalicylic acid, C9H8O4, in aspirin tablets is determined by hydrolyzing…

A: Solution A stock resolution could be a focused resolution which will be diluted to some lower…

Q: MgNH4PO4•6H2O has a solubility of 0.023g/100.ml of water. Suppose a 5.02g sample was washed with…

A: The values are given as follows: