1:5000 means 1 kg of KMnO4 in 5000 L of the solution.
So in 5000 L of solution, amount of KMnO4= 1 kg
In 1 L of solution, KMnO4= 1/5000= 2 * 10^-4 L = 0.2 gram
5% stock solution means 5 gram of KMnO4 in 100 ml of solution.
0.2 gram = 20 *0.2 = 4 ml of solution .
A patient is to prepare one liter of a 1:5000 potassium permanganate (KMnO4) solution as a...
How many grams of potassium permanganate (KMnO4) are required to prepare a 250-mL solution whose concentration is 2.16 M?
You have to make 650 g of 0.68 molal aqueous potassium permanganate (KMnO4, M.Wt 158.0) solution. What mass (9) of KMnO4 do you need to weigh (two decimal places)? Answer: How many g of lithium carbonate (Li2CO3, M.Wt 75.9) are equivalent to 275 mcg of lithium citrate BP (C6H5L1304.4H20, M.Wt 282.0) with respect to lithium? (To 6 decimal places) Answer: How many mg of sodium chloride are in 3.1 L of an isotonic sodium chloride solution? Answer:
1. Potassium permanganate (KMnO4 ) is a commonly used oxidant in many redox titrations. In one such titration, KMnO4 solution in a buret is added to a solution of oxalic acid in the Erlenmeyer flask. 2MnO4−(aq) + 5H2C2O4(aq) + 6H+(aq) → 2Mn2+(aq) + 10 CO2(g) + 8 H2O(l) Every component except permanganate (purple) is colorless. The end point of the reaction will be signaled by: a. The first appearance of the purple color in the solution being titrated b. The...
please help and explain. Thank you A chemist prepares a solution of potassium permanganate (KMnO4) by measuring out 21. umol of potassium permanganate into a 400. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's potassium permanganate solution. Be sure your answer has the correct number of significant digits. xs ?
A chemist must prepare 800 mL of 190. mM aqueous potassium permanganate (KMO ) working solution. He'll do this by pouring out some 0.442 M aqueous potassium permanganate stock solution into a graduated cylinder and diluting it with distilled water Calculate the volume in ml of the potassium permanganate stock solution that the chemist should pour out. Round your answer to 3 significant digits. mt
4. Potassium permanganate is normally made as a concentrated solution, which is then diluted prior to use. The concentrated solution is normally made as a 1 : 800 solution. You are asked to supply a patient with sufficient of this solution to allow them to use 250 mL of the diluted solution (1 in 20) four times a day for 28 days. What quantity of potassium permanganate will be contained in the volume of concentrated solution you supply?
You wish to prepare 0.037 M KCIO3 from a stock solution of potassium chlorate that is 3.568 M. How many milliliters of the stock solution do you need to make 5.00 x 102 mL of 0.037 M KCIO3? (2 decimal places, fill in the number ONLY!)
can you please answer this one, the first one I posted the answer was wrong. Potassium permanganate in acidic solution is used to titrate a solution of hydrogen peroxide, with which it reacts according to 2MnO4 (aq) + 5H2O2(aq)+6H30+(aq)—>2Mn2+(aq) + 502(g)+14H2O(1) A potassium permanganate solution is prepared by dissolving 22.00 g of KMnO4 in water and diluting to a total volume of 1.000 L. A total of 20.27 mL of this solution is required to reach the endpoint in a...
A physician calls you to ask if you could compound a 5% oral solution of potassium chloride for a I. patient who needs to take 10 mEq of KCL orally daily. If 75 mg of KCl contains 1 mEq of potassium, how many teaspoonfuls of the 5% KCl solution would the patient need to take daily? II. You are asked to prepare 2 quarts of a 1:5000 solution of sodium benzoate. How many milligrams of sodium benzoate do you need?...
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