Reaction of Potassium Permanganate and Hydrogen Peroxide …
2020年8月22日 · With the peroxide solution in excess, we added 10ml vinegar and 10ml of different concentrations of permanganate and timed the reaction. The basics are that the more concentrated the permanganate , the faster the reaction. I would just like to know what the theoretical relationship is between...
Standardization of nitrite solution (TITRATION, STUMPED)
2011年4月6日 · The permanganate ion reacts with nitrous acid and sodium oxalate to calculate the concentration of nitrite in the stock solution. This is done by titrating the excess potassium permanganate with sodium oxalate, calculating the excess permanganate, and then using the formula NO2= Original permanganate - excess permanganate.
Chemistry-potassium permanganate lab - Physics Forums
2009年10月2日 · Why will this potassium permanganate be of no further use for quantitative experiments? KNOWN: Potassium Permanganate = KMnO 4 It is known that potassium permanganate is a common lab oxidizing agent [it reduces]. It naturally has an intense purple color but when potassium permanganate is reduced all the way to Mn 2+, it becomes …
Titration lab with potassium permanganate - Physics Forums
2011年11月7日 · The materials needed for a titration lab with potassium permanganate include: a burette, a conical flask, potassium permanganate solution, a pipette, a white tile, a standard solution of a known concentration, and a solution of the substance being tested. How is a titration lab with potassium permanganate performed?
Reaction Rate experiment: Potassium Permanganate and …
2024年6月21日 · 10ml of Permanganate solution (0.0135 mol/liter) were reacted with 10ml of Peroxide and 10ml of vinegar. The peroxide was in excess so all the permanganate reacted changing from purple to colourless. This colour change was timed for various dilutions of …
How to calculate number of moles of H2O2 oxidized - Physics …
2015年9月15日 · In summary, the equation for the oxidation of hydrogen peroxide by potassium permanganate in acidic solution is 2MnO4- + 6H+ + 5H2O2 -> 2Mn2+ + 5O2 + 8H2O. The number of moles of hydrogen peroxide oxidized can be calculated by multiplying the number of moles of potassium permanganate by 5/4000. The answer is approximately 0.01125 moles.
Potassium permanganate and oxalic acid - Physics Forums
2006年4月9日 · The initial solution of potassium permanganate will be a deep purple color, but as it reacts with the oxalic acid, it will turn colorless. Once all of the oxalic acid has been consumed, a small amount of excess potassium permanganate will remain, giving the solution a …
Why Did the Permanganate Ion and Glucose Reaction Change …
2007年9月11日 · In summary, the conversation discussed a reaction performed in class where potassium permanganate solution was added to a solution of sodium hydroxide and glucose. The resulting solution changed from green to orange due to the reduction of Mn(VI) to MnO2.
KMnO4 Titration, why does it need to be in an acid? - Physics …
2013年10月13日 · KMnO4 (potassium permanganate) is a strong oxidizing agent that can react with a wide range of substances. This makes it a versatile and reliable choice for titration, as it can accurately determine the concentration of a variety of analytes.
Redox Reaction: Adding Excess Acidified KMnO4 to Ammonium …
2007年2月10日 · In summary, excess acidified potassium permanganate, a strong oxidizing agent, is added dropwise to an ammonium iron(II) sulfate solution. This results in the reduction of potassium permanganate to manganese ions and the oxidation of iron(II) to iron(III) ions, as shown in the equation MnO4^- + 8H+ + 5e^- -> Mn^2+ + 4H2O.