Name: Cindy Nguyen Date: 7/11/12 Classifying Acids and Bases Purpose: To observe the typical properties of acids and bases. Hypothesis: The typical properties of acids are identical to the typical properties of bases. Materials: * * Goggles * Well plate * 2 strips of magnesium ribbon * Sodium hydrogen carbonate (baking soda)‚ NAHCO3 * Red litmus paper * Blue litmus paper * Conductivity tester * Beakers of: * Tap water * Dilute
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Exercise 6: Acid-Base Titrations Nick Redmond Partner: Stephan Villavicencio Thurs. Section Lab date: March 19‚ 1998 Report date: April 6‚ 1998 Abstract: The equilibrium between acids and bases during a titration can be used to determine several characteristics of the acid or the base. Sodium hydroxide was standardized to 0.1035 M in three acid-base titrations of potassium hydrogen phthalate (KHP). This standardized NaOH solution was then used in a series of other titrations with acids in order
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Coca Cola Company Balance sheet As at Dec 31‚ 2012 (millions) Assets Current Assets Cash 8‚442 Short-term Investments and Marketable Securities 8‚109 Inventories 3‚264 Prepaid Expenses 2‚781 Other Current Assets
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& Worksheet: Acids‚ Bases & Salt Name : __________________________________________________ ( ) Class : Secondary 3 Maju/Cemerlang Date : ______ August 2012 Acids Definition: Substances that release hydrogen ions (H+) when dissolved in water. Strong Acids | Weak Acids | Chemical Name | Chemical Formula | Organic acids such as citric acid‚ ethanoic acid. | Hydrochloric acid | HCl | | Sulphuric acid | H2SO4 | | Nitric acid | HNO3 | |
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concept of a conjugate acid-base pair. Using equilibrium law and K‚ explain the relationship between the strength of an acid/base and its conjugate. Conjugate Acid-Base Pair: Conjugate acids and bases were presented by Bronsted-Lowry‚ who was a chemist who proposed the theory that both acids and bases required the transfer of a proton in order for there to be a reaction. An acid will donate a proton (proton donor)‚ forming what is considered to be a conjugate base. When the base accepts a proton (proton
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are able to figure out which one it is based on properties‚ along with the pH. Acids taste sour‚ and bases taste bitter. Using the pH scale‚ you are able to know how strong of an acid or base a liquid is. High concentration of [H+] ions means that the liquid has a low pH. Therefore a liquid with a low concentration of [H+] would have a high pH. A pH of less than 7 represents an acid‚ while a pH above 7 represents a base. A pH of 7 would be neutral. In this lab‚ we used red cabbage juice as a pH indicator
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Cummings ISBN: 9780321695987(13 digit) or 0321695984 (10 digit) 2. LAB EXERCISE TEXT - This ISBN # is a package that includes the text and the CD with the Lab exercises. PhysioEx 9.0 Lab Exercise text (REQUIRED) Author: Zao et al Text Publisher: Pearson Benjamin Cummings ISBN: 9780321905413 (text only) ISBN: 9780321929648 (text and CD package) ISBN: 9780321907127 (PhysioEx 9.0 with 9.1 updates -CD only) 3. If the PhysioEx 9.0 text is purchased alone – there is online access to
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CARBON 6 9 ( 2 0 1 4 ) 6 3 8 –6 4 0 Available at www.sciencedirect.com ScienceDirect journal homepage: www.elsevier.com/locate/carbon Letter to the Editor Carbon nanodots with strong nonlinear optical response Dezhi Tan a‚ Yuya Yamada b‚ Shifeng Zhou c‚ Yasuhiko Shimotsuma b‚ Kiyotaka Miura b‚ Jianrong Qiu a‚c‚* a State Key Laboratory of Silicon Materials‚ Department of Materials Science and Engineering‚ Zhejiang University‚ Hangzhou‚ Zhejiang 310027‚ PR China b Department of Material Chemistry
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Chapters 9 and 10 Previews Between the ages of 11 and 18‚ young people cross the great divide between childhood and adulthood. This crossing encompasses all three domains of development—biosocial‚ cognitive‚ and psychosocial. Chapter 9 focuses on the dramatic changes that occur in the biosocial domain‚ beginning with puberty and the growth spurt. The biosocial metamorphosis of the adolescent is discussed in detail‚ with emphasis on factors that affect the age of puberty‚ sexual maturation‚ and changes
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Determining the Properties of Different Acids and Bases Yamin Liu November 16th‚ 2017 Chemistry 1021 Section: 427 Benton Smith Discussion of Results The goals of this experiment were to find the identities of four unknown compounds and to first determine the pH. We then were required to run a series of anion and cation tests to determine the composition of the unknown solutions. To get more knowledge about these solutions we ran a series of dilutions to see if
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