Acid Base Reactions
Weak Acid and Base
Twenty milliliters of 1 M acetic acid were measured in a graduated cylinder and put into Calorimeter One. The initial temperature of the acetic acid sodium chloride solution was recorded. Twenty milliliters of ammonium hydroxide were measured into a graduated cylinder and added into the calorimeter. The temperature was immediately recorded. The solution was monitored, and the temperature was recorded every ten seconds until it began to decrease. The mixture was properly disposed of. The above procedure was repeated two more times using 3 M and 6 M concentrations of acetic acid and ammonium hydroxide. All results were observed and recorded. The solutions were properly disposed of, and all results were observed and recorded. Equations in the lab manual were used to calculate the ∆H for each experiment.
Strong Acid and Base
Twenty milliliters of 1 M hydrochloric acid were measured in a graduated cylinder and put into Calorimeter Two. The initial temperature of the hydrochloric acid was recorded. Twenty milliliters of sodium hydroxide were measured into a graduated cylinder and added into the calorimeter. The temperature was immediately recorded. The solution was monitored, and the temperature was recorded every ten seconds until it began to decrease. The solution was properly disposed of. The above procedure was repeated two more times using 3 M and 6 M concentrations of hydrochloric acid and sodium hydroxide. All results were observed and recorded, and the solutions were properly disposed of. Equations in the lab manual were used to calculate the ∆H for each experiment.
Bibliography
References
Bellama, Jon. General Chemistry: Third Edition. New York: Brooks/Cole Publishing Company,
1999.
Cooper, Melanie. Cooperative Chemistry. New York: McGraw-Hill, 1995. 60-62.