SKIP.
Cellular respiration releases CO2 as one of its products, together with heat.
Carbon dioxide forms carbonic acid in water: CO2 + H2O -> H2CO3: this will be measured.
Use Phenolphthalein
as pH indicator: colorless in acid, pink
in neutral or basic (alkaline) solutions.
Use 0.5% NaOH
to make 100 ml. standard solution with a light - medium pink
color.
Divide this 100 ml. into 2 flasks - one will be your standard, and the other will be the experimental
flask.
Index | Lab notes made Jun 21, 2010 by Peter Chen |