Prelab 484R

# Prelab 484R - KEY to PRELAB 484 Relating Mass and Volume 1...

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KEY to PRELAB 484: Relating Mass and Volume 1. a. The bottom of the graduated cylinder can crack or break and leak water. This would cause the next measurement of the volume to be low. b. Some of the water in the graduated cylinder may splash out, causing your next volume measurement to be low. 2. The slope of a mass vs. volume graph is equal to the density of the substance; the density is 1.2 g/mL. The substance in Table 2 with a density that is closest to 1.2 is polymethyl methacrylate, with a listed density of 1.24 g/mL. 3. Table 2 shows that the density of cobalt is 8.9 g/mL. Set up your dimensional analysis by starting with the quantity that you have (1.82 g) and writing the quantity that you want (mL) to the right of the equal sign. Use density as a conversion factor to convert from grams to milliliters. 1.82 g x 1 mL = X mL 8.9 g X = 0.20449 mL w/ the correct number of sig figs: X = 0.20 mL or 2.0 x 10 -1 mL 4. a. Select the maximum values of each axis based on the data presented in the table, such as 25.00g for mass and 4.00mL for volume. Select intervals on each axis that

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