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CHM 121 Spectrophotometric Analysis of Cu2+ Lab Report
- Course
- Chemistry 121
- Institution
- Harper College
This is a comprehensive and detailed lab report on; Spectrophotometric Analysis of Cu2+ for CHM 121. *Essential!!
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Copper LabBy: Jonathan Pilafas (performed on 11/5/2018)
Purpose: The objective of this lab is to determine the concentration of copper (II) ions in a
solution of unknown concentration as a hypothetical example to determine if the concentration
of the copper (II) ions meets or exceeds the action level established by the EPA.
References:
1. “Laboratory Experiments for Chemistry 121” - Harper College
2. http://dept.harpercollege.edu/chemistry/msds1/Copper%20metal%20Flinn.pdf
3. http://dept.harpercollege.edu/chemistry/msds1/Copper(II)%20Sulfate%20anhydrous%20
JTBaker.pdf
4. http://dept.harpercollege.edu/chemistry/msds1/Ammonia%202M%20Ethanol.pdf
Reagents:
Name Formula Molecular Weight
Ammonia NH3 17.031 g/mol
Copper Sulfate CuSO4 96.06 g/mol
Copper Cu 63.546 g/mol
, Safety:
Ammonia:
Health - 0
Flammability - 0
Reactivity - 1
Copper Sulfate:
Health - 2
Flammability - 0
Reactivity - 1
Copper:
Health - 4
Flammability - 3
Reactivity - 0
Methods:
During part one of this experiment, my group filled cuvettes with various concentrations of Cu
and water. Then we transferred these solutions to a spectrophotometer to measure the visible
spectrum of each solution. During part two, we did the same testing for two concentrations of Cu
that had been previously prepared before class. During part three, we analyzed our data and
recorded them onto graphs to visualize the trend of our data.
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