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Due date Thursday at 1 PM Newyork Time.The questions in the picture Pic 1 are the Lab questions for Cu 2+ ion and the question in Pic 2 is the Pre-Lab. The tables are related to Pic 1 and needs to be filled with showing all steps.
Equation:
2Cu2+ + 2SO2-3 + 2I-2 CuI + S4O2-6
Given: (During 3 trials)
[Na2S2O3] = 0.0206 M
Trial 1
Trial 2
Trial 3
Volume of Na2S2O3 used (ml)
21.30
21.20
22.00
Amount of Na2S2O3 used (mol)
Amount on Cu2+ in unknown sample (mol)
Volume of original Cu2+ solution used (mol)
10 ml
10 ml
10 ml
[Cu2+] in original solution (M)
2- Average concentration of Cu2+ (M)? (Show all calculation in number 1 and 2)
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