Featured in PASCO’s College Biology Instructor Guide
College Instructor edition with 26 experiments covering introductory and general biology topics.
Use a water quality sensor to measure the effects of CO2, SO2, and NO2 on the pH of water.
In this activity, students investigate chemical reactions that are important in the formation of acid rain to better understand the relationship between certain types of anthropogenic (manmade) emissions and problems arising from acid rain. During this investigation, students:
Students will gain experience conducting the following procedures:
1 M HCl solution - 15 mL
1-hole rubber stopper for flask
Electronic Balance - 1 per class
Erlenmeyer flask, 50-mL
Flexible Teflon tubing to fit glass tubing - 20 cm
Glass tubing for rubber stopper
Graduated cylinder, 10-mL
Graduated disposable pipet
Latex or polypropylene gloves
Planting pots, 2 inch - 3
Radish seeds - 15
Sodium bicarbonate(NaHCO3) - 5 g
Sodium bisulfite(NaHSO3) - 5 g
Sodium nitrite (NaNO2) - 5 g
Vinegar - 400 mL
Wash bottle containing distilled or deionized water
This experiment may require software and an interface for data collection.