I am getting stuck with finding the mols, grams and percent of Cr^3+. by MonSubnitNameDatePreparation and Analysis of a Purple Nickel CompoundPrelab2.0184 g of a compound of the general formula Crx(NH3),Clz was prepared using 3.5246 g CrCl36 H2O and 10.00 mL of 15 M NH3. It was then analyzed as follows:Analysis of Cr3+The concentration of Cr³* was determined spectrophotometrically. The chromium(III) ion ispurple, with a maximum light absorption at 570 nm. A stock solution (Solution 1) of 0.100 MCr* was used to make the following dilutions:Solution 2: 10.00 mL stock solution diluted to a total volume of 100 mL with water.Solution 3: 20.00 mL stock solution diluted to a total volume of 100 mL with water.1.2532 g of the unknown chromium compound was dissolved in enough water to make 100 mLof solution. Absorbance readings are given below:34Solution 20.100M(10MC)=X 10omlX= 0.01MColution 3AbsorbanceConcentration0:1com0.01M0.02M0.06mCalculate the concentration of Cr** in solutions 2 and 3, Then, make a graph of absorbance vs.concentration using the three known (standard) solutions. From the graph, find the concentrationof the chromium compound, calculate moles of Cr³*, grams of Cr³*, and % Cr³* in the unknownSolution1.85010.1870.37431.122unknown compoundcompound. Attach graph and show work below.3t 6.00mol0.0GM OFAnswers:0.0GMmol/L Cr* (from graph)mol Cr+g Cr3+% Cr+shot on moto g' powerCrystal H.73

Solution 2 is a 1:10 dilution of solution one. Its concentration is 0.1M /10 = 0.0100 M Solution 3…

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I am getting stuck with finding the mols, grams and percent of Cr^3+

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter26: Molecular Absorption Spectrometry

Section: Chapter Questions

Problem 26.31QAP

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