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For the first step assume all H2SO4(aq) deprotonates. H2SO4 (aq) H2O(l) H3O (aq) HSO4-(aq) ... Can assume that x 0.20 since Ka1 is small ...
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Polyprotic Acid-Base Equilibria Introduction 1.) Polyprotic systems Acid or bases that can donate or accept more than one proton Proteins are a common example of a ...
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Polyprotic Acid-Base Equilibria Introduction 1.) Polyprotic systems Acid or bases that can donate or accept more than one proton Proteins are a common example of a ...
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Amino acids are zwitterion molecule with both positive and negative charge ... Neutral zwitterion. Only ions are H2A , A-, H and OH ...
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Neutral molecule is a zwitterion, a molecule that have both a positive and negative charge ... group forcing the amino acid to rearrange to give the zwitterion. ...
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Polyprotic Acids. Polyprotic acids can furnish more than one ... Water (hydro) causing cleavage (lysis) of a bond. Na H2O Na H2O. NH4 H2O NH3 H3O ...
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0.1 M can be boiled under reflux for 1 hour without acid loss ... Constant boiling HCl can be weighed and diluted to a known volume to prepare ...
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... relative concentrations of the various forms of oxalic acid H2C2O4 at pH 2.00. What is the structure of oxalic acid? What are the important equilibria? ...
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... etc. For a typical weak polyprotic acid, Ka1 Ka2 Ka3 the acid will get successfully weaker *For a typical polyprotic acid in water, ...
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Acids & Bases Calculating Ka from % Dissociation Polyprotic Acids Properties of Salts Example Lactic acid (HC3H5O3) is a waste product that accumulates in the muscle ...
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Ch. 15 & 16 Review Everything except Polyprotics & Lewis Acids/Bases!! Practice 20 (from ch. 15 study questions) Suppose that 0.50 moles of hydrogen gas, 0.50 moles ...
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Strong Acid-Weak Base and Weak Acid - Strong Base ... Polyprotic acid and bases. Titration of H2CO3 with a strong base. Indicators ...
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Chapter 09 Polyprotic Acid-Base Equilibria Proteins perform biological functions such as structural support, catalysis of chemical reactions, immune response to ...
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Titrate 25 mL of 0.1 M CH3CO2H with 0.1 M NaOH. pH Titration Curves for Weak Bases. Polyprotic Acids: pH Titration Curve for H3PO4. Acid/Base States as a Function ...
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Chapter 15 Complex Acid/Base Systems Figure 15-4 Curves for the titra- tion of polyprotic acids. A 0.1000 M NaOH solution is used to titrate 25.00 mL of 0.1000 M ...
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Asitler ve Bazlar yonla ma derecsi Ionization Constants of Some Polyprotic Acids Soru 0.246 M NH3 ve 0.0954 M NH4Cl i eren tampon zeltini pH n n ...
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Polyprotic Acids Will the following act as acids or bases in water: KHS Na2HAsO4 K3C6H5O7 Na3PO4 (Calculate/estimate pH, 0.100 M) ...
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Polyprotic Acids H2C2O4 (aq) + H2O(l) HC2O4-(aq) + H3O+(aq) Ka1 = [HC2O4-][H3O+] / [H2C2O4] = 5.9 x 10-2 Assumption that x is small is no good (~63%).
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We can write the expression for any acid. Strong acids dissociate completely. ... Polyprotic acids dissociate in a stepwise manner ...
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Acid= donates a proton (H ) to a base. Base= accepts a proton (H ) from an acid ... Polyprotic acids can donate more than one H Sulfuric acid ...
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A. Technical Definition : Acidic = 0 7.0. Practical Definition : Acidic = 0 - 6.5 ... C. Polyprotics : H2CO3(carbonic acid) and H3PO4 (phosphoric acid) IV. BASES ...
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Example: Calculate the pH of a solution that is 0.1000 M H3PO4 and 0.1000 M H2PO4 ... Calculation of titration curves for polyprotic acids and bases ...
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Acid / Base Titrations Changes in Acid-Base Reaction Systems Titration Terminology Titration the progressive transfer of a solution from a buret (called the ...
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Chapter 16 Ionic Equilibria: Acids and Bases
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Chapter 14 Preview Lesson Starter Objectives Acids Bases Arrhenius Acids and Bases
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Neutralization of Acids and Bases In general, a titration involves the addition of either a strong acid, strong base or both (must go to completion) as follows: ACID ...
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Chapter 14 Preview Lesson Starter Objectives Acids Bases Arrhenius Acids and Bases
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Assistant professor of chemistry. Department of natural sciences ... Called zwitterion - Both groups are protonated at low pH and depotonated at high pH ...
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Acids, Bases, and Salts I. Properties of Acids Sour taste Change colors of acid-base indicators warm colors turns litmus paper red Some react with active metals to ...
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Acids and Bases (Chapter 19): Properties of acids: Taste sour React with metals to form hydrogen gas React with carbonates to form CO2 gas Form electrolyte solutions
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Acids and Bases: Introduction Section 19.1
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HCl(g) H+ + Cl- Water is a base -makes hydronium ion What do all of these have in common? NH3 H2O CO32- Dissociate the Following 1. Hydrochloric acid 2. Acetic acid 3 ...
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Acid-Base Equilibria *
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Acids and Bases Chapter 19 Hydrolysis Cations of weak bases donate hydrogen ions leaving solutions acidic Buffer Solution in which the pH remains relatively constant ...
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Chapter 14 Acids and Bases
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Acids and Equilibrum Chapters 16-17
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Chapter 16 Acids and Bases
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Chapter 16 Acids and Bases
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Acids and Bases pH If [H+] = 0.01 M at 25 C What would the pH be? If [H+] = 10-7 M at 25 C What would the pH be? pH Calculating the pH of aqueous solutions In the ...
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Arhenius Definition Acids produce hydrogen ions in aqueous solution. Bases produce hydroxide ions when dissolved in water. Theory limited to aqueous solutions. Only ...
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Example: Solution of hydrofluoric acid & sodium hydroxide are mixed. HF OH- = F ... Sol'n of hydrochloric acid & sodium bicarbonate is mixed. H HCO31 ...
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Amino acid building blocks of proteins have the general structure: ... A zwitterion is a molecule with both positive and negative charges. Amino Acids ...
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Amines are the most common class of weak bases. Weak Acids and Bases. Acetic Acid (HA) ... An organo-ammonium ion is the conjugate weak acid of an amine (weak base) ...
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Title: No Slide Title Author: Leonard Fine Last modified by: Leonard Fine Created Date: 2/17/2001 8:01:44 PM Document presentation format: On-screen Show
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Principles of Reactivity: Chemistry of Acids and Bases Chapter 16
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chapter 14 the chemistry of acids and bases
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React with certain metals to produce hydrogen gas ... Sodium hydroxide NaOH lye or caustic soda. Potassium hydroxide KOH lye or caustic potash ...
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Ch 16: Acid-Base Equilibria Brown, LeMay Ch 16 AP Chemistry
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ADVANCED PLACEMENT CHEMISTRY ACIDS, BASES, AND AQUEOUS EQUILIBRIA Salts of Highly Charged Metals Salts that contain a highly charged metal ion produce an acidic ...
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Acid-base titrations Simulation: http://users.skynet.be/eddy/titratie.swf Strong acid/ strong base pH curves Types There are four types of acid-base titration; each ...
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Acids & Bases Properties of Acids Sour taste Change color of acid-base indicators (red in pH paper) Some react with active metals to produce hydrogen gas Ba(s ...
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Title: PowerPoint Presentation Last modified by: PISD Created Date: 1/1/1601 12:00:00 AM Document presentation format: On-screen Show Other titles
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Arginine has three acid-base proton sites: From pH=1.82-8.99, H2Arg is dominant. ... Example for Arginine. Arginine Fraction Plot. Buffer Capacity for Arginine ...
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Properties of Acids - Summary. Solutions of acids have a sour taste ... Properties of Bases. Solutions of bases have a bitter taste. Don't taste them in the lab ! ...
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