CHM 3120L

INTRODUCTION TO ANALYTICAL CHEMISTRY

LABORATORY REPORT

Fall, 2007

EXPERIMENT: SPECTROPHOTOMETRIC DETERMINATION OF pH

Name: Click here to enter text.

Section: Click here to enter text.

Date Experiment Completed: Click here to enter a date.

Paste excel plot of the spectrum of the acid form of bromocresol green

Paste excel plot of the spectrum of the base form of bromocresol green.

2. Complete the following table.

Wavelength	acid form	base form	Abs unknown
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Click here to enter text.	Click here to enter text.	Click here to enter text.	Click here to enter text.

3. Report the [In-]/[HIn] ratio of your unknown solution: Click here to enter text.

Report the pH of your unknown solution: Click here to enter text.