PREPARATION OF STANDARD CURVE (Procedure B) Example Solution 1 Solution 2 Solution 3 *1. Weight (g) CuSO, 5H₂O dissolved

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Preparation Of Standard Curve Procedure B Example Solution 1 Solution 2 Solution 3 1 Weight G Cuso 5h O Dissolved 1 (38.72 KiB) Viewed 83 times

PREPARATION OF STANDARD CURVE (Procedure B) Example Solution 1 Solution 2 Solution 3 *1. Weight (g) CuSO, 5H₂O dissolved in 50.00 mL of solution 1.248 1.000 2.000 3.000 2. Molarity of Cu²+ in the 0.100 0.080 0-160 0.240 50.00 mL of solution (mol/L) *3. Absorbance value obtained 0.110 0.127 0.339 0.467 using the Spectronic 20 ANALYSIS OF COPPER IN THE BRASS SAMPLE (Procedure A) SAMPLE NUMBER 269 Trial 1 Trial 2 1. Weight (g) of brass example 1.896 0.624 0.616 $2. Absorbance value obtained 0.496 0.211 0. 208. using the Spectronic 20 3. Molarity of Cu2+ as read from the standard curve(mol/L) 0.412