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Chemical equilibrium: electrochemistry

Chemical equilibrium: electrochemistry

Chemical equilibrium: electrochemistry. 자연과학대학 화학과 박영 동 교수. Examples. In distilled water Hg 2 (IO 3 ) 2 ⇄ Hg 2 2+ + 2IO 3  K sp = 1.3 × 10 -18 K sp = [Hg 2 2+ ][IO 3  ] 2 = x (2 x ) 2 → x = [Hg 2 2+ ] = 6.9 × 10  7 In 0.050 M KNO 3 [Hg 2 2+ ] = 1.0 × 10  6.

By pennie
(127 views)

The Mole and Energy

The Mole and Energy

The Mole and Energy. Mole, gas volume and reactions, Chemical energy and Enthalpy,. Index. Chemical energy. The mole. Molar quantities. Avogadro’s constant. Gas volume. Enthalpy changes and specific heat capacity. Index for the various types of calculations in higher chemistry.

By ervin
(109 views)

Equilibrium

Equilibrium

Equilibrium. Equilibrium. Limiting reagent Concentrations become constant Dynamic situation Reversible reactions. 2NO 2  N 2 O 4. a. b. c. d. time. 2NO 2  N 2 O 4. Equilibrium Constant (K). represents a ratio of the concentrations of products to reactants at equilibrium:

By zasha
(114 views)

19 F: 9e – , 9p + , 10n 0 Ar-40: 18e – , 18p + , 22n 0 a) Al 2 S 3 b) MgO

19 F: 9e – , 9p + , 10n 0 Ar-40: 18e – , 18p + , 22n 0 a) Al 2 S 3 b) MgO

x 6.02x10 23 particles. x 6 atoms. 1 particle C 2 H 4. 1 mol C 2 H 4. 19 F: 9e – , 9p + , 10n 0 Ar-40: 18e – , 18p + , 22n 0 a) Al 2 S 3 b) MgO NaF = 4.0 – 0.9 = 3.1: ionic, London. H 2 O = 3.5 – 2.1 = 1.4: dipole-dipole (specifically H-bonding), London.

By jonny
(169 views)

Empirical Formula

Empirical Formula

Empirical Formula . The empirical formula is the simplest whole number ratio between atoms in a compound. It is determined experimentally by measuring the mass of the elements that combine to form a compound. Molecular Formula. Molecular Formula.

By buzz
(184 views)

Electronic Structure

Electronic Structure

Electronic Structure. Gordon Watson Chemistry Department, Kelso High School. Based on Presentations produced by David P. White University of North Carolina, Wilmington. Adv Higher Unit 1 Topic 1. Introduction.

By monty
(105 views)

§ 10. 6 Photochemistry

§ 10. 6 Photochemistry

§ 10. 6 Photochemistry. 6.1 Brief introduction. 1) Photochemistry. The branch of chemistry which deals with the study of chemical reaction initiated by light. 2) Energy of photon. The photon is quantized energy : light quantum.

By ciqala
(1730 views)

10. 4 Photochemistry

10. 4 Photochemistry

10. 4 Photochemistry. 4.1 Brief introduction. 1) photochemistry. The branch of chemistry which deals with the study of chemical reaction initiated by light. 2) Energy of photon. The photon is quantized energy : light quantum.

By guy
(355 views)

Percent composition, empirical formulas, molecular formulas,and formula for a hydrate

Percent composition, empirical formulas, molecular formulas,and formula for a hydrate

Percent composition, empirical formulas, molecular formulas,and formula for a hydrate. Percent Composition. Part/whole X 100 = % composition Ex. What percent of sodium chloride is chlorine? Chlorine is the “part” and sodium chloride is the “whole”

By natala
(187 views)

Membranes II

Membranes II

Membranes II. Andy Howard Introductory Biochemistry 6 October 2009. Membranes work hard. Transport of various types requires active participation of various proteins and sometimes involves energy input.

By wood
(136 views)

天然水总硬度的测定

天然水总硬度的测定

天然水总硬度的测定. 一、 主要试剂 二、 实验步骤 三、 结果表示 四、 有关常数. 一、 主要试剂. 1. 0.005 mol·L -1 EDTA 溶液:称取 0.7 g EDTA ,溶于 H 2 O → 400 mL ,再加入 10 滴 MgCl 2 。 2. Ca 2+ 标准溶液:减量法准确称取 0.12 ~ 0.15 g 基准 CaCO 3 于 100 mL 烧杯中,用 H 2 O 润湿,加 2 mL 1:1 HCl 溶解后,加 30 mL 水,煮沸 2-3 分钟,冷却,转移到 250 mL 容量瓶中定容。. 二、 实验步骤.

By marci
(147 views)

Refer to chapter 16, Stryer, 5e & chapter 14, Lehninger, 5e

Refer to chapter 16, Stryer, 5e & chapter 14, Lehninger, 5e

The biosynthesis of cell constituents III: glycolysis: steps 6-10. Refer to chapter 16, Stryer, 5e & chapter 14, Lehninger, 5e. Lecture 18, Michael Schweizer. steps 6-10. Glycolysis continued. Recall that there are 2 GAP per glucose. 6. Glyceraldehyde-3-phosphate dehydrogenase catalyzes:

By ginata
(218 views)

Adventures in Thermochemistry

Adventures in Thermochemistry

Adventures in Thermochemistry. James S. Chickos * Department of Chemistry and Biochemistry University of Missouri-St. Louis Louis MO 63121 E-mail: jsc@umsl.edu 11. Clydesdales from the Budweiser Brewery St. Louis MO. Applications of the The Correlation-Gas Chromatographic Method

By toan
(101 views)

C. Y. Yeung (CHW, 2009)

C. Y. Yeung (CHW, 2009)

Activation Energy (E a ) & Arrhenius Equation. / Transition State. p.01. C. Y. Yeung (CHW, 2009). k = Ae (-E /RT). a. (Arrhenius Equation). Rate Constant (k) is temperature dependent. Higher E a , smaller k, slower rate of rxn. E a of a rxn path is “unchangable”!. p.02.

By owen
(160 views)

Reasons for the Development of Estimation Techniques

Reasons for the Development of Estimation Techniques

If there is no experimental data available, are there any other methods of estimating thermochemical data? Group Additivity ab initio calculations molecular mechanics calculations. Reasons for the Development of Estimation Techniques

By flo
(144 views)

Green Chemistry Workshop #2: Analytical Chemistry I

Green Chemistry Workshop #2: Analytical Chemistry I

Green Chemistry Workshop #2: Analytical Chemistry I. US – Thai Distance Learning Program January 27, 2010 Professor Kenneth M. Doxsee University of Oregon. The Principles of Green Chemistry. Prevention Atom Economy Less Hazardous Synthesis Designing Safer Chemicals

By leann
(291 views)

无机化学

无机化学

无机化学. 第17章 硼族元素 Chapter 17 Boron family elements. 返回. 本章重点要求掌握本族元素单质、氢化物、氧化物的结构与性质,硼酸盐的结构特点;本族元素的缺电子性及对化合物性质的影响; 硼烷结构中五大成键要素,分析硼烷结构. 基本内容和重点要求. 硼族元素通性 单质的结构及重要性质,硼及 B12 的正二十面体结构,硼的 制取方法。 硼烷的结构与性质,硼的五大成键要素,硼烷结构分析。 硼族元素的重要化合物性质,硼的氧化物,硼酸及硼酸盐,铝、镓、铟、铊的氧化物,卤化物。. 返回. 17.1 硼族元素通性.

By fritzi
(280 views)

化学化工系

化学化工系

无机化学 Inorganic Chemistry. 主讲:张爱江. zaj315@163.com. 化学化工系. 第三章 化学反应的 方向、速率和限度. 第三节 化学反应的限度. 化学化工系. 19 世纪,人们发现炼铁炉出口含有大量的 CO 。高炉中炼铁主要反应为: Fe 2 O 3 (s) + 3 CO(g) = 2 Fe(s) + 3 CO 2 (g) 已知 Δ r H m  = -24.7 kJ·mol -1 , Δ r S m  = 15.4 kJ·mol -1 ,

By armand
(202 views)

The biosynthesis of cell constituents II: glycolysis: steps 1-5

The biosynthesis of cell constituents II: glycolysis: steps 1-5

The biosynthesis of cell constituents II: glycolysis: steps 1-5. Objectives How cells make ATP: energy-releasing pathways Food molecules are broken down in three stages Carbohydrates and their principal biological roles

By orea
(137 views)

Chapter 4. THE PROPERTIES OF GASES

Chapter 4. THE PROPERTIES OF GASES

Chapter 4. THE PROPERTIES OF GASES. THE NATURE OF GASES. 4.1 Observing Gases 4.2 Pressure 4.3 Alternative Units of Pressure. THE GAS LAWS. 4.4 The Experimental Observations 4.5 Applications of the Ideal Gas Law 4.6 Gas Density 4.7 The Stoichiometry of Reacting Gases

By nate
(182 views)

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