Title: Formula of a Hydrate. Objective: Determining the percentage of water and the chemical formula of a hydrate. Background: Water has a polar structure and it has positively and negatively charged parts within each molecule. This gives it a strong attraction toward ions. The ions in some salts attract and form strong bonds with water molecules. These salts‚ when they have absorbed water‚ are called hydrates. Anhydrous salts are salts that can form hydrates but which have had all the water
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Microsoft Excel: Formulas‚ Formulas... Northern New York Library Network 6721 US Hwy 11 Postdam‚ NY 13676 877-833-1674 or 315-265-1119 www.nnyln.org Jim Crowley C3 - Crowley Computer Consulting 9148 State Highway 37 Ogdensburg NY 13669 315-394-7008 fax 315-394-7009 www.crowleycomputers.com jim@crowleycomputers.com Description: Excel has hundreds of functions and nobody knows them all‚ but spend some time and learn to create more powerful formulas. Students will dive into decision making functions
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Heron’s Formula History of Mathematics University of Phoenix October 22‚ 2012 The event that I chose to discuss is Heron’s method that was written about in the three book series called metrica discovered in the period of about 60 AD. His formula for calculating the area of a triangle was one of the formulas which was written about in the books. Heron of Alexandria was also very well known by Hero. Their has been much debate on the birth
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Six-Gun Mystique. His description of the Western formula being “far easier to define than that of the detective story” may clearly be a paradigm for many authors‚ but not particularly for Stephen Crane. The standards Cawelti has set forth for a successful Western is quite minimal by thought‚ but at the same time relevant. Crane signifies a different perspective to these standards. Crane’s thoughts for the use of the Western formula are just approaches towards the west‚ from the
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of Magnesium Oxide Aleshia Otieno Mr. Taylor SCH3U-01 Lab #4 Monday‚ November 17‚ 2014 Introduction Percentage composition is the percentage of a formula mass represented by each element. Percentage composition compares the mass of one part of a substance to the mass of the whole. The law of definite proportions states that a specific compound always contains the same amount of elements in fixed proportions by mass. By finding the percent composition of magnesium oxide one will essentially
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Point and Boiling Point Constants | Solvent | Formula | Freezing Point (°C) | Kf(°C/molal) | Boiling Point (°C) | Kb(°C/molal) | Water | H2O | 0.0 | 1.86 | 100.0 | 0.51 | Acetic acid | CH3COOH | 17.0 | 3.90 | 118.1 | 3.07 | Benzene | C6H6 | 5.5 | 4.90 | 80.2 | 2.53 | Chloroform | CHCl3 | –63.5 | 4.68 | 61.2 | 3.63 | Ethanol | C2H5OH | –114.7 | 1.99 | 78.4 | 1.22 | Phenol | C6H5OH | 43.0 | 7.40 | 181.0 | 3.56 | Use the previous formula and the constant from Table 1 to calculate the temperature
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www.platinumgmat.com | Free GMAT Prep GMAT Practice Questions | GMAT Study Guide | MBA Admissions GMAT Formulas Algebra Formulas Exponential Equations xnxm = xn + m (xn)/(xm) = x n - m (x/y)n = (xn)/(yn) xnyn = (xy)n (xy)z = xyz x-n = 1/(xn) 1n = 1 x0 = 1 0n = 0‚ except 00 = 1 FV = CV(1 + g)T Other Distance = Rate*Time Wage = Rate*Time Arithmetic Formulas Combinatorics Combinations:nCk = n!/((n-k)k!)! Permutations:nPk = n!/(n-k)! Circular: (n-1)! k = number of objects
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Physics “FORMULAS LIST “ | | | | | | | Quantity |Symbol |Formula | |% Error | |% Error = ( |A-M| ) x 100 /A | |% Uncertainty | |% Uncertainty = (Uncertainty
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Module 6: Measures of Variability‚ Skewness and Kurtosis | Ungrouped Data: VARIABILITY | | Meaning | Lesson | | Formula | Legend | Meaning | NOTE: | VARIABILITY(Four measures of Variability) | Measures of the average distance of each observation from the center of the distribution. | Range(R) | | R=Hv-Lv | Hv- Highest valueLv- Lowest value | Difference between hv and lv in data set. | | | | Variance | population (δ2) | =∑(x-x)2N | x – classmarkx –meanN - population | Average squared
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A Formula for Happiness Bishop Gary E. Stevenson A formula embodied in the gospel of Jesus Christ reveals the pathway to happiness. It is a plain and precious truth found throughout the Book of Mormon. It is described particularly well in the teachings of the prophet Lehi to his sons as he neared the end of his life. In speaking to his son Jacob‚ he taught‚ “For it must needs be‚ that there is an opposition in all things” (2 Nephi 2:11). A few verses later he added‚ “Men are‚ that they might
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