IPS Quiz
4.9 - Acidification Lab (Two Gases Lab included)
Acid Rain and Global Warming
• CO2
• Sulfur dioxide
• Hydrogen chloride
2. Carbonic acid = dissolved CO2
3. Sulfur Dioxide = "acid rain" (kill forest, pollute water- river, lake, pond, etc.)
• volcanoes
• industrial pollution
Limestone/Sinkholes
2. Florida sinkholes occur because:
• lost of limestone
• water underground (aquafer)
• once covered with ocean = soft calcium deposits (dead animals)
Sulfuric Acid Notes
• Alchemists wanted to make gold out of rocks
2. Uses:
• lead acid batteries (cars)
• fertilizers
• steel industry = prevents rust corrosion
• dried fruit production (hydrotropic)
Magnesium Carbonate and Acid
Dense gas (sinks)
Gas can't escape
Filled with air
Magnesium and Acid
Light gas (rises)
Filled with air
Filled with hydrogen
Phenol Red
• red = basic
• clear = acid
Acidification Post-Lab
2. The CO2 turns to carbonic acid lowering the ph of the H2O
3. Calcium tablet is more soluble in cup with straw
4. Because the carbonic acid lowers ph and dissolves calcium faster