Unknown Copper (II) Sulfate Solution

Determine the concentration of an unknown copper (II) sulfate solution by using colorimeter
Introduction:
The concentration of the solution also alterations the proximity of the solution. For example, the more focused concentration will frame to be denser than more weakened concentration of copper (ii) sulfate. This implies there is a connection between the concentration of an solution and its absorbance. Along these lines, this test is set up to discover the kind of connection between the concentration and absorbance of CuSO4 and have the capacity to utilize this information to measure grouping of unknown concentration in view of a given absorbance rate. To get a straight line calibration curve, absorbance versus focuses to be plotted. The
5H2O = 0.4mol × 250gmol-1 =10g

Table 1: preparation of standard CuSO4 solution and their absorbance at 650 nm.
Sample number Concentration (moldm-3) Absorbance at wavelength at 650 nm Blank 0.00 0.00 1 0.08 0.38 2 0.16 0.70 3 0.24 0.96 4 0.32