what is the % (w/w) and molarity of a solution that is created from 54.52 milligrams chromium (II) permanganate and dissolved in 593.18 milliliters water to the mark in a volumetric flask? Assume chromium (II) permanganate is soluble in water.
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what is the % (w/w) and molarity of a solution that is created from 54.52 milligrams...
4. what is the molarity of a solution created by dissolving 25.0 g of aluminum chloride into a solution with a final volume of 150.0 mL? 5. how many milliliters of a 1.50 molar copper (II) sulfate solution contain 25.0 g of copper (II) sulfate?
Solve the following with chemsitry knowledge.
QUESTIONS 1. What is the molarity of each of the following solutions? You pipet 25.00 mL of 0.355 M KCI into a 100.00 mL volumetric flask and fill to the mark a. tRTO CONSTANTE b. You pipet ten milliliters of the solution from part (a) into a fifty millaliter volumetric flask and dilute to the mark. You pipet five milliliters ofthesolution from part (b) into a beaker and then pipet twenty milliliters of DI...
= STOICHIOMETRY Calculating molarity using solute moles calculating A chemist prepares a solution of mercury(IT) iodide (Hgl) by measuring out 0.00253 umol of mercury(II) iodide into a 300 mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in moll of the chemist's mercury(II) iodide solution. Round your answer to 3 significant digits. 2
A student weighs out 3.68 g of CrBr2, transfers it to a 125. mL volumetric flask, adds enough water to dissolve the solid and then adds water to the 125 mL mark on the neck of the flask. Calculate the concentration (in molarity units) of chromium(II) bromide in the resulting solution? _____ M Please show steps to solve!
1: You need to make an aqueous solution of 0.212 M barium hydroxide for an experiment in lab, using a 300 mL volumetric flask. How much solid barium hydroxide should you add? ____grams 2: How many milliliters of an aqueous solution of 0.219 M chromium(III) sulfate is needed to obtain 3.70 grams of the salt?____ml 3: In the laboratory you dissolve 23.1 g of zinc nitrate in a volumetric flask and add water to a total volume of 250 ....
The formate ion, (CHO2-), is related to the acetate ion and forms ionic salts with many metal ions. Assume that 11.874 g of M(CHO2)2 (where M represents the atomic symbol for a particular metal) are dissolved in water. When a solution of 0.300 M sodium sulfate is added, a white precipitate forms. The sodium sulfate solution is added until no more precipitate forms, then a few excess milliliters are added. The precipitate is filtered, washed, and dried. It has a...
What is the molarity of a solution of 8.65 g Rb3PO4dissolved in water in a 250.00 volumetric flask?
calculate the molarity of the new solution
5. You prepare a stock solution of cupric sulfate pentahydrate by adding 3.745 g to a volumetric flask and filling the flask to the 100.0 mL mark with water. You then add 3.00 mL of the stock solution and 2.00 mL of water to a test tube and mix well. Calculate the molarity of the new solution. a. 0.225 moles b. 0.150 moles C. 0.100 moles d. 0.352 moles e. 0.0900 moles
Calculating molarity using solute moles Kirste A chemist prepares a solution of copper(II) fluoride (CuF) by measuring out 0.205 umol of copper(II) fluoride into a 300 ml volumetric flask and filling the ask to the mark with water. Calculate the concentration in mmol/L of the chemist's copper(11) fluoride solution. Be sure your answer has the correct number of significant digits. X 5 ?
Solution A was prepared from 0.2703g of ferrous ammonium sulfate [Fe(SO4)2(NH4)2• 6H20; Molar mass = 392.2g/mole] dissolved in 100.0 mL of distilled water. Show all work for full credit. (a) Calculate the molarity of solution A. (Remember molarity = moles/Liter) Solution B was prepared by pipeting 25.00 mL of solution A into a 250.0 mL volumetric flask, and then the flask was diluted to the mark (exactly 250.0 mL, Vb) with distilled water. (b) Calculate the molarity of solution B....