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[DOC File]PERCENT ERROR WORKSHEET
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4. The density of water at 4oC is known to be 1.00 g/mL. Kayla experimentally found the density of water to be 1.075 g/mL. What is her percent error? 5. The Handbook of Chemistry and Physics lists the density of a certain liquid to be 0.7988 g/mL. Taylor experimentally finds this liquid to …
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[DOC File]Experiment 14 - Hydrate Lab
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From the difference in the mass of the hydrated and the anhydrous magnesium sulfate, one can find the mass of water liberated. Dividing this number by the original mass will give the percent water in the hydrate. Thus, in this experiment it is our goal to determine the percent of water in an unknown hydrate as well as the formula of the hydrate.
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[DOC File]AP Chemistry – Chapter 3, Stoichiometric Relationships ...
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A pure sample of the compound is analyzed and found to be 65.60 percent C and 9.44 percent H by mass. (a) Determine the empirical formula of the compound. (b) A solution of 1.570 grams of the compound in 16.08 grams of camphor is observed to freeze at a temperature 15.2 Celsius degrees below the normal freezing point of pure camphor.
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[DOC File]CHEMISTRY NAME
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Compare the two different percent errors that you obtained in the lab and explain why they weren’t exactly the same. 9. For this lab you will need to have the following:
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[DOC File]Errors and uncertainties in chemistry internal assessment
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Conclusion and evaluation: Literature value of melting point of para-dichlorobenzene = 53.1° C (Handbook of Chemistry and Physics). The fact that % difference > % uncertainty means random errors alone cannot explain the difference and some systematic error(s) must be present.
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[DOC File]Chapter 1 Chemistry: Matter and Measurement
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Students will know the difference between intensive and extensive physical properties and chemical properties, between physical and chemical changes. ... Chemistry is a _____science. This means that experiments and calculations almost always involve _____ _____. ... Percent Error—used to calculate accuracy of results.
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[DOC File]Percent Composition and Molecular Formula Worksheet
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The compound benzamide has the following percent composition. What is the empirical formula? C = 69.40 % H= 5.825 % O = 13.21 % N= 11.57 % C7H7NO. A component of protein called serine has an approximate molar mass of 100 g/mole. If the percent composition is as follows, what is the empirical and molecular formula of serine?
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[DOC File]PERCENT ERROR WORKSHEET
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The Handbook of Chemistry and Physics lists the density of a certain liquid to be 0.7988 g/mL. Taylor experimentally finds this liquid to have a density of 0.7925 g/mL. ... To find the percent of error, you find the difference between the predicted value or amount and the actual value (subtracting the absolute value of the numbers so that you ...
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[DOC File]Accuracy & Precision Worksheet
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The following measurements were made to determine the density of a material whose value was, according to the handbook of Chemistry and Physics, 1.15 g/mL Trial #1 0.95 g/mL Trial #2 1.16 g/mL
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[DOC File]CHEMISTRY LAB: ISOTOPES AND ATOMIC MASS
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CHEMISTRY LAB: ISOTOPES AND ATOMIC MASS Author: Preferred Customer Last modified by: Brock, Jeremy L. Created Date: 3/31/1998 6:11:00 PM Company: Volusia County Schools Other titles: CHEMISTRY LAB: ISOTOPES AND ATOMIC MASS
percent difference vs percent error

What is percent difference in chemistry