This laboratory examined the reaction rates and colligative properties of NaCl and CaCl2. Premassed samples of NaCl and CaCl2 were used to create 1.0 M solutions of each salt. The ingredients were mixed together in a clean glass. The water to be added was calculated and measured to the nearest tenth of a milliliter using a graduated cylinder. The solution was stirred until the solid was completely dissolved. A drinking glass was then filled 3/4 full with distilled water, and 2 mL of the 1M NaCl solution was added to a graduated cylinder. Enough Seltzer water was added to completely fill the graduated cylinder with the NaCl solution almost to overflowing and a rubber stopper placed in the opening of the graduated cylinder, loose enough to allow gas to escape through the spout of the cylinder. The cylinder was inverted into the drinking glass, ensuring the stopper stayed in place. The volume of gas generated in the graduated cylinder was measured and recorded at 5-second intervals until the volume no longer changed. The procedure was repeated twice more. The entire procedure was then carried out three times using CaCl2 in place of NaCl and a freshly opened can/bottle of Seltzer water. The entire procedure was then repeated three times using 2 mL distilled water in place of the salt solution and a freshly opened can/bottle of Seltzer water.
The average volume for each of the three readings in each experiment recorded at 5-second interval
3 
)
= 1033
= 4 (250 words per page)
