Acid Rain Lab Report Introduction: The problem was to see how crushed chalk and whole chalk weather differently. The independent variables are The temperature of the liquids The surface area of the chalk, crushed vs whole The dependant variable was the weathering of the chalk; this was calculated by measuring the foam reactant. Procedure: Part B- For the two partners recording data with the room temperature liquids, the materials where collected first. Two of the graduated cylinders where filled with 10 mL of room temperature water each.
The pH and temperature was takes of all the liquids before the experiment progressed any further, One piece of chalk was crushed on a piece of paper than put into the room temperature water. At the same time a whole piece of chalk was put into the second cylinder. Both where observed for three minutes. Observations made where to be written down in the observation and data table in the packet. And foam produced from the reaction of the whole or crushed chalk was measured in centimeters or millimeters than recorded on the chart. The pH was than recorded again.
Partners than preformed the same procedure for the room temperature vinegar as done before with the water. The partners gathered two new cylinders and new pieces of chalk they then repeated the steps but with new materials. Part A was a replication of part B but with warm liquids. This data was collected from lab partners after completed. Results: For the room temperature experiment the water had a starting temperature of 24 degrees Celsius and a pH of 6. The vinegar had a starting pH of 1 and a temperature of 24 degrees Celsius.
During the time the whole and crushed chalk were in the water nothing happened besides the water turning a little bit cloudy. While in the vinegar the whole chalk broke down, turned the water a tint of yellow, and produced foam of 1 millimeter. The crushed chalk turned the water a cloudy white and produced foam of 12 centimeters. For more information please see the data table. Conclusion: After seeing and comparing my results I can easily see that crushed chalk in the room temperature vinegar weathered more than the other three did.
It not only had the highest or tallest foam reaction of 14 centimeters but it also had the highest ending pH of 5. If given the chance to redo the lab and improve the experiment I would make sure the volume of the chalk is consistent in all eight beakers used throughout both sides of the experiment. I also would try to keep how much we crushed the chalk the same. This makes sure that the surface areas are the same. Questions: Acid rain is rainfall that has been made acidic by certain pollutants in the air.
Acid rain kills trees and forests, pollutes lakes or other bodies of water causing the fish population to decline, and is harmful to humans if inhaled. I am assuming that over the course of millions of year’s acidic groundwater dissolves away at the limestone thus leaving the impressive caves. A- A desert environment We could reduce the amount of emissions released. If we find a way to change our lifestyles from always driving to our destinations and using inorganic (factory made) products than the use of fossil fuels will be reduced as well as the amount of toxins in the atmosphere. Granite it is a igneous rock and more durable.