LAB #1 - biolab 1 PDF

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Summary

biolab 1...

Description

unknown concentration at 599.7 nm

absorbance concentration(mg/mL) at 599.7 nm 0.02 1.913 0.016 1.688 0.012 1.278 0.008 0.865 0.004 0.402

slope 96.125

intercept 0.0757

1.491

0.014723537

Figure 1: Absorbance Values at 599.7 nm Produced by Various Concentrations of Methylene Blue Solution 2.5

AbsorbanceValues at 599.7 nm

2 1.5 1 0.5 0

0

0

0.01

0.01

0.01

0.01

0.01

0.02

0.02

0.02

0.02

Concentration of Methylene Blue (mg/mL) absorbance at 599.7 nm

Linear (absorbance at 599.7 nm) unknown concentration at 599.7 nm

Figure 1: Absorbance Values at 599.7 nm Produced by Various Concentrations of Methylene Blue Solution The trend line is a positive value as the line is rising. At the absorbance value of 599.7 nanometer, the estimated concentration was 0.014723537 mg/mL, which is a value close to the expected value, which is 0.016 mg/mL. The percentage error calculated is -8.125%, which shows that the expected value is greater than the measured value, does making the measured value a negative percentage. The trend line ranges from the values of a minimum of approximately 0.5 nanometer to a maximum value of 2 nanometers....