Chemistry
The Effect of Dissolved Carbon Dioxide on the pH of Water
Investigate the effect of dissolved CO₂ on pH of water.
Mission
Investigate the effect of dissolved CO2 on pH of water
Curriculum Alignment
| Standard | Syllabus code | Topic | Coverage | Grades | |
|---|---|---|---|---|---|
| NGSS | HS-PS1-11 | Investigate acid/base properties and behaviors — pH | Partial | 9–12 | |
| British / IGCSE | CAIE/Edexcel IGCSE Topic 6/10 — test for CO2 (limewater), pH of carbonic acid | CO2 test (limewater); carbonic acid formation | Full | 9–10 | |
| IB | DP Chemistry Reactivity 3.1 | Proton-transfer reactions — pH of carbonic acid | Partial | 11–12 | |
| CBSE | CBSE Class 10 Ch.2 – Acids, Bases and Salts | pH scale, acid properties | Partial | 10–10 | |
| AERO / AP | AP Unit 8 (Acids and Bases) | Acid-base equilibria | Partial | 11–12 |
Variables
What you change
- Volume of dissolved CO2
What you measure
- pH Value
What you keep constant
- The Temperature
- Water purity
- Water volume
What You'll Need
- Arduino Uno
- pH Sensor Electrode Probe BNC
- I2C LCD
Estimated Time
Virtual mode 14 minTest mode 21 minExercise mode 19 min
Mind-Blowing Fact
Its gone sour.
The more sour the taste of food, the more likely it is to be acidic. This is thanks to the fact that food tends to become more acidic as it goes bad. When someone eats sour food, the bad taste along with the facial expressions would possibly stress the likely danger of eating food what has rot. This had a large purpose during caveman times, in where these responses to eating sour food alerted the rest of the tribe that the food should not be eaten.
How You Can Run It
Virtual modeTest modeExercise modeView-only modeAccessibility modeTobii eye trackingVoice commandsArduino integrationAmerican