Calculate the percent error for the following measurements: Part 1 The density of alcohol (ethanol) is found to be 0.8045g / mL (true value = 0.7980g/mL). Be sure your answer has the correct number of significant digits. Part 2 The mass of gold in an earring is analyzed to be 0.8426g (true value = 0.8644g). Be sure your answer has the correct number of significant digits.

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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.