What was the concentration of the acid s Formula and structure: The chemical formula of potassium permanganate is KMnO 4 and its molar mass is 158.034 g/mol. See the answer. Aspiration can cause acute tracheobrochitis and bronchopneumonia. Problem: The iron content in ores can be determined by titrating a sample with a solution of potassium permanganate. (skipping this question) a) Calculate the concentration of the resulting solution in mol/L (3 marks) b) Calculate the concentration of the resulting solution in parts per million (ppm). Learn this topic by watching Mass Percent Formula Concept Videos. The reaction of potassium permanganate (VII) with acidified iron(II) sulphate is given below: If 15.8 g of potassium permanganate(VII) was used in the reaction, calculate the mass of iron (II) sulphate used in the above reaction. Potassium permanganate is a nephrotoxin and hepatotoxin, as well as a corrosive agent in the gastrointestinal tract. Molecular weight calculation: 39.0983 + 54.938049 + 15.9994*4 ›› Percent composition by element 1.0 t 3.0 Show all of your work. Potassium permanganate, or KMnO4, has a molar mass of 158g/mol. We have step-by-step solutions for your textbooks written by Bartleby experts! hydrogen ions: MnO 4-+ 8H + + 5 e-® Mn … Manganese is a chemical element with the symbol Mn and atomic number 25. 3.7 t 2.0 (K = 39, Mn = 55, Fe = 56, S = 32, O = 16) Once the concentration of the standard solution of KMnO4 (aq) was determined, it was used to determine the concentration of Fe2+ in iron pills. Potassium permanganate is an inorganic compound with the chemical formula KMnO 4 and composed of K + and MnO − 4.It is a purplish-black crystalline solid, that dissolves in water to give intensely pink or purple solutions. Which staternent is true for balanced chermical equations. 39/154 =25%. 8. Examples of molar mass computations: NaCl, Ca(OH)2, K4[Fe(CN)6], CuSO4*5H2O, water, nitric acid, potassium permanganate, ethanol, fructose. Potassium Permanganate (KMnO 4) is an inorganic chemical compound.It is also known as Condy’s crystals or permanganate of potash.. A German-Dutch chemist Johann Rudolf Glauber was the first to discover the production of KMnO 4 in the year 1659. % by mass. 1. % composition of Mn: 55/158=0.348=34.8%. (39+55+16x4). It is not found as a free element in nature; [not verified in body] it is often found in minerals in combination with iron.Manganese is a transition metal with a multifaceted array of industrial alloy uses, particularly in stainless steels.. Molar mass of KMnO4 = 158.033949 g/mol. K= 39.09 g/mol x 1 = 39.09 g/mol. Before applying potassium permanganate to your skin, it’s important to dilute it with water. Determination of Mn in the unknown steel through volumetric analysis involved titrations. This reaction requires 5 electrons and 8 (!) The titration of 25.00 ml samples of the oxalic acid solution requires 32.15 ml of 0.1050M sodium hydroxide and 28.12 ml of the potassium permanganate solution. -undergoes reduction to Mn+2. Problem #2: Potassium dichromate is used to titrate a sample containing an unknown percentage of iron. It is an ionic compound composed of the potassium cation (K +) and the permanganate anion (MnO 4-), in which the manganese atom is attached to four oxygen atoms through three double bonds and one single bond.The manganese metal is in the +7 oxidation state in this salt. They used 0.222 grams of sodium oxalate, Na2C2O4. The molar mass of Mn is 54.938 g/mol. Hypothesis: If we find the molarity of the potassium permanganate after it is standardized, then we can find the concentration of oxalic acid, because using a mole to mole conversion of the permanganate and the moles of oxalic acid found from the data would produce the molarity if set above the volume. It is an ionic compound composed of the potassium cation (K +) and the permanganate anion (MnO 4-), in which the manganese atom is attached to four oxygen atoms through three double bonds and one single bond.The manganese metal is in the +7 oxidation state in this salt. Explanation: First we calculate Molar Mass KMnO 4. Repeat the procedure two or three times, adding the potassium manganate(VII) dropwise approaching the endpoint. The titration requires 32.26 mL of K 2 Cr 2 O 7 for 1.2765 g of the sample. Answer to: Calculate the mass percent of manganese (Mn) in a potassium permanganate (KMnO4) compound. Add your answer and earn points. Calculate the following:Mass % of Mn in potassium permanganate. See all problems in Mass Percent Formula. (hint: the permanganate ion is intensely purple and Mn 2+ is colorless.) What is the M (molarity) of the KMnO4 solution? The resulting solution was titrated with a 1.621x10^-2 Molar KMnO4 Solution. Its molar mass is 158.034 g/mol. 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