The effect of temperature on the absorbance of ... - Woodbridge High
The effect of temperature on the absorbance of ... - Woodbridge High
The effect of temperature on the absorbance of ... - Woodbridge High
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Background<br />
Research (c<strong>on</strong>t.)<br />
Portable Colorimeter<br />
Beer’s Law states that <strong>the</strong><br />
original <strong>absorbance</strong> <str<strong>on</strong>g>of</str<strong>on</strong>g><br />
light by a soluti<strong>on</strong> is<br />
directly proporti<strong>on</strong>al to <strong>the</strong><br />
c<strong>on</strong>centrati<strong>on</strong> <str<strong>on</strong>g>of</str<strong>on</strong>g> <strong>the</strong> liquid.<br />
Beer’s Law is represented<br />
by <strong>the</strong> equati<strong>on</strong>;<br />
I=I0x10^(-kcl)<br />
To measure <strong>the</strong><br />
<strong>absorbance</strong> <str<strong>on</strong>g>of</str<strong>on</strong>g> light, a<br />
colorimeter is needed.<br />
A colorimeter uses a<br />
photometer to measure<br />
<strong>the</strong> amount <str<strong>on</strong>g>of</str<strong>on</strong>g> light that<br />
passes through a soluti<strong>on</strong><br />
and how much <str<strong>on</strong>g>of</str<strong>on</strong>g> that light<br />
is absorbed by <strong>the</strong> soluti<strong>on</strong><br />
itself.
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