Abstract In this experiment‚ the Ksp for calcium sulfate dihydrate‚ CaSO4·2H2O‚ by titrating 4 times a calcium sulfate dihydrate solution with diprotic EDTA‚ H2(EDTA)2-. For each trial we found the Ksp by means of molarities and activities. The results for the Ksp using only molarities was very different than the Ksp using activities. The average Ksp using molarity only was 2.26 x 10-4 and the average Ksp using activity turned out to be 2.31 x 10-5. The actual Ksp however‚ is 3.14 x 10-5. A percent
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The Science of Thunderstorms The Science of Thunderstorms Eleanor C. Radaza Philippine Science High School - Central Mindanao Campus Nangka‚ Balo-i‚ Lanao del Norte‚ Philippines 9217 This paper is primarily written for science students‚ teachers‚ and other interested individuals to provide a resource to enhance their knowledge about the origin of thunderstorms. 1. Introduction A thunderstorm is a storm that is able to produce lightning and thunder. It occurs in cumulonimbus clouds which are large
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Reading Reading 28-04-2015 40‚661.00 28-04-2015 3.59 Billing Details Billed Consumption (Previous) Date of Meter Reading Reading 29-03-2015 40‚292.00 Current Period Charges ( 30-03-2015 to 28-04-2015 Multiplication Factor 1.00 1.00 Current Consumption Days Units 30 369.00 3.59 ) Fixed Charges (A) Slab-wise Energy Charges Slab-wise FPA/PPA TOD Srch@8% Elec.tricity Total Amount on (E= Tax @ 5% (A+B+C+D+E+ Cons. Measrd Billed Units Unit Amount(B) PPAC% Amount(C) TOD% on Surg/Rebt . A+B+D+R)
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more atoms. The bond is caused by the electrostatic force of attraction between opposite charges‚ either between electrons and nuclei‚ or as the result of a dipole attraction. The strength of chemical bonds varies considerably; there are "strong bonds" such as covalent or ionic bonds and "weak bonds" such as dipole–dipole interactions‚ the London dispersion force and hydrogen bonding. Since opposite charges attract via a simple electromagnetic force‚ the negatively charged electrons that are orbiting
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Electric cars‚ although now commonly associated with the Tesla brand‚ have in actuality been around for more than 100 years and have since then risen and fallen in popularity and efficiency. The electric vehicle was created initially to replace the inefficient steam and gasoline-powered vehicles of the 20th century‚ however‚ as the years progressed and the dangers of global warming and greenhouse gas became more evident‚ the purpose of the electric car transitioned into providing a better alternative
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An important factor in understanding the value of a product or service to a customer is to understand what potential benefit they will derive from it‚ how they can set about deriving it and how external factors affect it. Understanding these essential facts assists in the establishment of the product‚ pricing and promotional strategy‚ marketing support services and value added services necessary to the successful introduction and support of the product in the market place The above approach
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Paraphrasing 1. What is paraphrasing? - A (more or less) free rewording of an expression or text‚ as an explanation‚ clarification and translation. “Paraphrasing‚ or translation with latitude‚ where the author is kept in view…but his words are not as strictly followed as his sense” (John Dryen‚ preface to his translation of Ovid‚ 1680) - An act or result of rewording (Ex. Simplified version of a legal document) - To make a paraphrase: to translate or define loosely
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compound with a solvent (such as water) to produce mobile ions. An ionic compound is fused by heating An electrical potential is applied across a pair of electrodes immersed in the electrolyte. Each electrode attracts ions that are of the opposite charge. Positively charged ions (cations) move towards the electron-providing (negative) cathode. Negatively charged ions (anions) move towards the electron-extracting (positive) anode. In this process electrons are either absorbed or released. Neutral atoms
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Chapter 5 and 25.1 Study Guide 1. Write down the electron configuration for the following atoms (see page 135 in your textbook): Mg Ne Zn 2. Which elements have the following electron configurations? a. 1s22s2 b. 1s22s22p63s23p1 3. Sketch the shape of the following orbitals: s p d 4. Define the term “quantum.” 5. Using the diagram of the atom‚ on the right‚ identify the following: a. Which arrow(s) indicate that electrons absorbed energy? b. Which arrow(s) indicate that electrons lost/emitted
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electrical charges. No They have different numbers of protons. No They have different mass numbers. B. i‚ ii‚ and iv E. All are correct C. i‚ ii‚ and v A. i and ii D. i‚ ii‚ iv‚ and v 4. There exist two stable isotopes of boron‚ and the average mass of a boron atom is 10.81 amu. Assuming you were able to isolate only a single boron atom‚ the chance that you would randomly get one with a mass of 10.81 amu is A. 0% B. 0.81% C. about 50% D. 10.81% E. 100% 5. Match the fundamental charge and mass
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