Mass of copper chloride used 1.750 g . Initial mass of zinc strip 2.650 g . Final mass of zinc strip 2.050 g . Mass of empty evaporating dish 49.000 g . Mass of dried copper metal in dish (first weighing) 49.689 g . Masses of copper in dish for successive weighings 49.605 g 49.600 g Questions?  1. Your original “hydrated” copper chloride sample is 21.2% water. Calculate the mass of water in your sample.

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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.