Steven Leung 9/19/06 Lab Report The Empirical Formula of a Copper Oxide Purpose: To convert an unknown copper oxide to copper (Cu) metal using natural gas to provide a reducing environment as shown below: Cu O (s) + CH (g) ¨ Cu (s) + Co (g) + H O (g) From the mass difference between the unknown copper oxide and the Cu metal generated at the completion of the reaction and the molar mass of Cu and oxygen‚ the empirical formula of the original copper oxide can be calculated. Materials:
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essential that the structure is derived. Firstly it is important to determine the percentage composition of elements to work out the empirical formula. The empirical formula was found to be C10H12O and the mass of the unknown was 148.09 m/z which when calculating the molecular weight of the empirical formula it did equal 148.09 g mol -1. This means that the empirical formula is also the molecular formula. As 12.01x10 carbons +1.008x12 hydrogens + 16= 148.09 09 g mol -1. From this knowledge the unknown
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The Self-Fulfilling Prophecy and Student Performance Jillian Cormier McNeese State University Abstract The study being conducted on self-fulfilling prophecy will determine rather there is a direct correlation between a positive professor‚ a negative professor‚ and a neutral group with no professor opinion. The study will contain 30 undergraduate students from McNeese State University who are currently enrolled in a psychology class. Each group will contain 10 participants and 1 professor. The
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Productivity Management PM – Q7 Self-Fufilling Prophecy or Pygmalion effect and the 4 factors plus its application. The problem with productivity measurements – especially in measuring a company’s workforce efficiency‚ is that they do not take into account other factors relating to the way people work. This means that elements such as employee’s initiatives‚ their flexibility‚ teamwork and adaptability are not incorporated in the measures of input. As such‚ the calculation of productivity
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Rex‚ a play written in ancient Greece by the famous poet Sophocles. Oedipus was a powerful Greek king and was notable for his compassion‚ sense of justice and his swiftness of thought and action. Unfortunately for him‚ his life fell ill when the prophecy of his birth came true. Throughout the play‚ the audience experiences a series of emotions. They experience pity‚ fear‚ and anger. At the end of the play‚ the audience may or may not experience a katharsis‚ a cleansing or purgation of emotions. The
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The Time After As Prophesied by He Who Hears the Waters Recorded in the annals of time Odysseus‚ son of Laertes – Bravest of all men Ulysses‚ son of none – Most stubborn of all fools As there can be no man braver than a stubborn fool you both shall stand before me and hear what I have to say. Together you will walk a shadowed path that the greatest among all men before and after feared and will fear to walk in the light of day. The first sign of your final undoing is this – a fountain of ambrosia
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1) Running regression analysis on data for 24 cities‚ Excel Data Analysis output is Regression Statistics Multiple R 0.9693 R Square 0.9396 Adjusted R Square 0.9306 Standard Error 188.2038 Observations 24 ANOVA df SS MS F Significance F Regression 3 11022960 3674320 103.73 2.3E-12 Residual 20 708414 35420.68 Total 23 11731374 Coefficients Standard Error t Stat P-value Lower 95% Upper 95% Intercept 2308.5 219.9996
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Experiment 9 Empirical Formula of Zinc Iodide Objectives Upon completion of this experiment‚ students should have learned: 1. The law of conservation of mass. 2. How to calculate an empirical formula. 3. The concept of limiting reagents. Introduction Synthesis and the determination of empirical formulas are two extremely important parts of chemistry. In this experiment‚ you will synthesize zinc iodide and determine its empirical formula. The molecular formula gives the actual
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Name: J.T Empirical Formula of Magnesium Oxide: Lab Report The objective of the experiment is to determine the empirical formula of Magnesium Oxide through a procedure of heating magnesium ribbon to react with oxygen to form a magnesium oxide compound with the correct ratio of atoms within each element; 1:1. Equipment: REFER TO EXPERIMENT SHEET Method: REFER TO EXPERIMENT SHEET Results: Object | Mass (g) | Crucible + Lid | 38.23 | Crucible + Lid + Magnesium | 38.57 | Crucible
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best captures the soul by representing the body in utmost detail: "the value and significance of flesh I can’t unlearn" (111). Lippi’s recitation of his life reveals to the reader the true value of art. Art operates as an instrument of God and as prophecy. When Lippi reaches the climax of his speech — the epiphanical moment for the reader — he says that the artist should paint those things that we all pass by from day-to-day but never care to notice. The artist has a duty to open the eyes of his audience
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