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Published byLucy Cameron Modified over 9 years ago
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Bleach Lab Idea
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Reaction NaClO(aq) + C 37 H 34 N 2 Na 2 O 9 S 3 →
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Absorbance and Concentration Absorbance is directly proportional to concentration in the dye. As the dye is consumed the absorbance decreases
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Effect of changing bleach concentration When the bleach concentration was doubled, the change in absorbance over time doubled Changing the bleach concentration causes a proportional change in the absorbance change over time.
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Effect of changing bleach concentration When the bleach concentration was halved, the change in absorbance over time was halved Changing the bleach concentration causes a proportional change in the absorbance change over time.
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Effect of Temperature At an increased temperature the change in absorbance over time is greater
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Effect of HCl The presence of HCl caused the change in absorbance over time to increase
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