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M-14
Part III: Calibration Curve
Standard Solution
Absorbance
1.
2.
3.
4
Part IV: Unknown Iron Solution
Unknown Water Code __________
Buret Readings
Unknown Water
Sample
Additional Unknown Water
Sample (if required)
Final Volume (mL)
Initial Volume (mL)
Volume of unknown
water sample (mL)
1.
Absorbance of initial 100.0 mL solution _______________
2.
Dilution calculation required so the absorbance of solution falls within calibration curve.
3.
Absorbance of final solution of the unknown water sample: _______________
Signature of Laboratory Instructor
Name of Student
Laboratory Section
