%3D ווו The following data were obtained when a hydrate was heated: crucible + sample 31.781 g 30.501 g empty crucible crucible + sample after heating 31.100 g 1. Calculate the % water in the hydrate. SHOW WORK. -30.S01g 0.6819x100=8. 618L18 31. 781g-31-109 %3D mas of nater lost 6se.8 2. Decide whether the sample was BaCl2 2H20 or MgCl2 6H20 by calculating the theoretical % water in each compound and comparing to your answer in #1. SHOW WORK. Formula weights: MgCl2 95.218 g/mole BaCl2 208.25 g/mole 18.0153 g/mole O'H 68

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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.