Spectrophotometry to find the concentration of unknown solution of copper nitrate

Purpose: To find the stringency of an unknown solution instruction spectrophotometry. Hypothesis: I believe the dousing should contain close 13.5-14 cc of our copper nitrate solution rationalized in a volumetricalal flask as its absorbance value is really close to the value obtained with our 15 cc solution. Background haphazardness: Spectrophotometry: Spectrophotometry involves the use of a spectrophotometer. A spectrophotometer is a photometer(a device for normal light intensity) that freighter measure intensity as a function of the color, or more specifically, the wavelength of light. There atomic number 18 more kinds of spectrophotometers. Among the most important distinctions used to classify them are the wavelengths they attainment with, the measurement techniques they use, how they acquire a spectrum, and the sources of intensity variation they are designed to measure. The more direct relation of spectrophotometry to chemistry is that we kindle manipulate its function in set out to calculate the concentration of an unknown solution. This is usually done with the use of the beer lambert equal which is: A=e.C.L Where A=Light absorbance, e=molar absorbtivity, C=concentration of solution and L= the distance our light must(prenominal) murmur through our cuvette.

Materials: - Copper Powder - Nitric Acid - whizz 250 cm^3 volumetric flask and ten bump cm^3 volumetric flasks. - Pipettes. - Beakers. - 1 Weighing shell - 1 fuming cupboard. - 1 Spectrophotometer. Method to obtain solutions: - Weigh 0.25g of Cu powder in a beaker. - Under fuming cupboard supplement 1 cm^3 ! of Nitric Acid in the same beaker. - bourgeon the Copper Nitrate solution into the 250 cm^3 volumetric flask and dilute it with water until it reaches the line. - utilize a pipet move 5cc, 10cc, 15cc and 20cc of the solution into different volumetric flasks each of c cm^3 volume and dilute them until the line form and then label them accordingly. - Using a pipette pour 10cc of Ammonium Hydroxide into a 100 cm^3...If you motive to get a full essay, order it on our website: BestEssayCheap.com

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