Featured in PASCO’s College Chemistry Instructor Guide
College Instructor edition with 36 experiments covering introductory and general chemistry topics.
Use a drop counter and pH sensor to determine the CO2 content of a beverage by performing titrations with multiple acid-base indicators.
Students determine the CO2 content of a beverage.
Students gain experience conducting the following procedures:
Micro stir bar
Beaker, 25-mL - 2
Beaker, 250-mL - 2
Erlenmeyer flask, 250-mL
Graduated cylinder, 100-mL
Phenolphthalein - 5 drops
Methyl orange - 5 drops
Magnetic stirrer and stir bar
Commercial soda drink - 1 can
4.00 M HCl solution - 100 mL
1 M NaOH solution - 100 mL
Wash bottle with deionized water
Balloon (fits on Erlenmeyer flask; holds- 100 mL)
Buffers, pH 4 and pH 10 - 10 mL
Cotton swab or tissue
This experiment may require software and an interface for data collection.