Science Quiz Study Guide
4.9 - Acidification Lab
Lesson 4.9: Acid Rain and Global Warming
Carbon Dioxide--> Create Acidic Solutions
Sulphur Dioxide--> Create Acidic Solutions
Hydrogen Chloride --> Create Acidic Solutions
Carbonic Acid--> dissolved Carbon Dioxide in water (rain)
Sulphur Dioxide--> Acid Rain
|_____> Volcanoes
|_____> Industrial Pollution
|___> Kills Forest, pollutes water, (River, Lake, Pond)
Sinkholes and Limestone Notes
- Soft, porous (holds water)
- Water soluble (Carbonic Acid)
Sinkholes:
- are common in Florida because the foundation is made up of a large amount of limestone.
- Lots of limestone underground
- Florida was covered in water in the passed (why fossils of marine life can be found in Florida's mainland.
Sulfuric Acid Notes
Uses:
- Lead Acid Batteries (cars)
- Fertilizers
- Steel Industry- Prevents Rust Corrosion
- Dried Fruit Production - Hydrotropic
Two Gases
-Not waiting 30 seconds
-Unstopper Before inverting
-Break surface of water with the test tube
-Don't collect full test tube of gas
-Air Bubble in test tube
-Stoppers not tight enough
-Test tubes not vertical
Magnesium Carbonate + Acid
Carbon dioxide is dense (it sinks) the vertical test tube (gas can't leave) Inverted (Leaves)
Magnesium + Acid
Hydrogen (H) (rises)
Vertical: Gas escapes
Inverted: Gas can't escape
Hydrogen Notes:
gas is ignited and rushes out of the test tube. Rubs against glass and cause the noise because of the friction.
Acidification of Water
-Not enough Phenol Red
-Don't blow bubbles for long enough
-Blows into both cups in part 2
-Not the same water in both cups
Post Lab:
-Phenol Red changes color as you add Carbon Dioxide into water
-The carbon dioxide turns into carbonic acid lowering the water's PH
-Calcium carbonate is more soluble in the bubble cup (one with straw)
-Because the carbonic acid lowers the Ph and dissolves calcium faster.
Ocean Acidification
-Lower ph will cause shellfish (shrimp, crab, etc.) to not be able build up their shells