Use the spuces prooided for the ansvrs and additional paper f eceosary 1. Compare the densities of your two rubbing alcohol samples a) Were they identical? lf not, why do you think they were d (b) Should these densities have been identical? Briefly explain why or why not. 2. Suppose you had been asked to share your rubber stopper with your laboratory partner. To do this, you cut the stopper into two pieces, and determined the density of your piece. Should you report your experimentally determined density as the density of the stopper, or should you add the density you determined to the one your partner determined, and report this total density? Briefly explain. 3. (a) Suppose that when you added your rubber stopper to the graduated cylinder containing water, some of the water splashed out. Due to this procedural error, would your experimentally determined density of the stopper be erroneously high or erroneously low? Briefly explain. (b) Suppose that after a student added his unknown object to the cylinder containing water, the top of the object remained above the surface of the water. After reading the new water level, he calculated the volume of his object. Would his calculated object volume be correct, too high, or too low? Briefly explain.
