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Unformatted text preview: a. Obtain 5%, 10%, 15% and 20% NaCl by weight b. Clean and dry the graduated cylinder c. Fill the cylinder to 10 mL with 5% NaCl d. Weigh the cylinder and solution to 0.01 gram e. Record f. Repeat steps b-e for 10%, 15%, 20% solutions Adam Golman Lab 2 Density Section 22 g. Determine the Density of each of the solutions h. Construct a graph of Density vs Composition. Include water i. Obtain an unknown from the TA j. Using a 25 mL flask obtain the unknown from the storeroom k. Record the unknown number on the data sheet. l. Repeat steps b-e for the unknown. m. Determine the density of the unknown. n. Using the graph determine the % composition of your unknown and record your results Hazards : None, no special clean up...
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- Spring '08