Spectroscopy in a Suitcase - Royal Society of Chemistry
Spectroscopy in a Suitcase - Royal Society of Chemistry
Spectroscopy in a Suitcase - Royal Society of Chemistry
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ULTRAVIOLET - VISIBLE SPECTROSCOPY (UV)<br />
EXERCISE 2 - REACTION OF BLUE FOOD DYE WITH BLEACH 9<br />
STUDENT WORK SHEET<br />
TIME (s) ABSORBANCE LN(ABSORBANCE) 1/(ABSORBANCE)<br />
0<br />
15<br />
30<br />
45<br />
60<br />
75<br />
90<br />
105<br />
120<br />
Calculations<br />
Determ<strong>in</strong><strong>in</strong>g k<br />
Gradient <strong>of</strong> L<strong>in</strong>e (k) =<br />
units:<br />
Rate <strong>of</strong> the reaction with respect to the hypochlorite<br />
1.Us<strong>in</strong>g the rate constants determ<strong>in</strong>ed from the other groups determ<strong>in</strong>e b, the order <strong>of</strong> the reaction with respect to the<br />
hypochlorite concentration.<br />
Overall Rate Law<br />
Rate= k [Blue #1] a [OCl - ] b<br />
a= b=<br />
Overall order =<br />
P<br />
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