56. Solution to Chemistry Problem

56. Solution to Chemistry Problem

29. A sample of alloy weighing m g was dissolved and after appropriate treatment the Cu2 ions were titrated with EDTA spectrophotometry at ʎ=62 nm. Plot a titration curve and calculate the mass fraction of copper in the alloy using the following data:
V ml, 1.00 2.00 3.00 4.00 5.00 6.00
A 0.100 0.190 0.275 0.350 0.350 0.350 .
Option 3
Sample weight m, g 0.2112
Concentration of complexone, mol/l 0.05215

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