Consider the following liquids: 1-pentanol d = 0.8146 g/mL Isopropyl alcohol d= 0.7851 g/mL 2-pentanol d = 0.8098 g/mL Hexane d = 0.660 g/mL You have two unknown samples, each known to be one of the above liquids. a) In determining the density of the first unknown, you weighed a 5.00 mL sample of the liquid, and found the mass to be 3.310 g. What is the identity of the unknown? Explain. b) For the second unknown, a 5.00 mL sample weighed 4.061 g. Based on this data, what can you conclude about the identity of unknown number two? Explain. c)  A perfect cube of jade has a mass of 15.00 g. If jade's density is 3.25 g/ml, determine the edge length of the jade cube.

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Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.