College Chemistry I PHS 1025 Fall 2012 Practice Exam 3A
... 47) Which one of the following compounds is insoluble in water? A) Rb2CO3 B) PbSO4 C) K2SO4 48) In which compound is the oxidation state of hydrogen not +1? A) Na2HSO4 B) NaH C) H2O ...
... 47) Which one of the following compounds is insoluble in water? A) Rb2CO3 B) PbSO4 C) K2SO4 48) In which compound is the oxidation state of hydrogen not +1? A) Na2HSO4 B) NaH C) H2O ...
vce chemistry trial exam 1
... esters for collection. IR spectroscopy will enable the identification of functional groups and can be used as a fingerprint for a structure. D is incorrect because UV-visible spectroscopy does not give any information about the structure of the compound being analysed. GC will separate the component ...
... esters for collection. IR spectroscopy will enable the identification of functional groups and can be used as a fingerprint for a structure. D is incorrect because UV-visible spectroscopy does not give any information about the structure of the compound being analysed. GC will separate the component ...
SAMPLE QUESTION PAPER SIR.S.M.TAHIR CHEMISTRY Mob: 9557076999
... (i) Account for the following observations. (a) Aldehydes are more reactive than ketone towards nucleophiles. (b) The aldehydes and ketones have lower boiling points than the corresponding acids. (c) The aldehydes and ketones undergo a number of addition reactions. (ii) Give chemical tests to distin ...
... (i) Account for the following observations. (a) Aldehydes are more reactive than ketone towards nucleophiles. (b) The aldehydes and ketones have lower boiling points than the corresponding acids. (c) The aldehydes and ketones undergo a number of addition reactions. (ii) Give chemical tests to distin ...
FINAL EXAM REVIEW PROBLEMS
... a. Suppose 6.71 x 103 g of titanium (IV) chloride is reacted with 2.45 x 10 3 g of oxygen. Calculate the maximum mass of titanium (IV) oxide that can form. b. If the percent yield of TiO2 is 75%, what mass was actually produced? ...
... a. Suppose 6.71 x 103 g of titanium (IV) chloride is reacted with 2.45 x 10 3 g of oxygen. Calculate the maximum mass of titanium (IV) oxide that can form. b. If the percent yield of TiO2 is 75%, what mass was actually produced? ...
Mr. Dehne AP Chem Name: ___________ Date: Per#: ___ AP
... deeply colored permanganate ion and then to measure the absorption of light. The steel is dissolved in nitric acid, producing the manganese (II) ion and nitrogen dioxide gas. This solution is then reacted with an acidic solution containing periodate ion; the products are the permanganate iodate ions ...
... deeply colored permanganate ion and then to measure the absorption of light. The steel is dissolved in nitric acid, producing the manganese (II) ion and nitrogen dioxide gas. This solution is then reacted with an acidic solution containing periodate ion; the products are the permanganate iodate ions ...
Document
... now Zn2+. [I know this because of my vast knowledge of chemistry ;-)] If we write an overall reaction for this process, we get: Zn + Cu2+ Zn2+ + Cu. This doesn't help us in our quest for electrochemistry knowledge. Let's rewrite this in half-reaction form. ...
... now Zn2+. [I know this because of my vast knowledge of chemistry ;-)] If we write an overall reaction for this process, we get: Zn + Cu2+ Zn2+ + Cu. This doesn't help us in our quest for electrochemistry knowledge. Let's rewrite this in half-reaction form. ...
N Goalby chemrevise.org 1 2.5 Transition Metals Substitution
... Learn the two bidentate ligands mentioned above but it is not necessary to remember the structure of EDTA. ...
... Learn the two bidentate ligands mentioned above but it is not necessary to remember the structure of EDTA. ...
Chemistry - Onslow College
... Year 12 Chemistry is a full year course, of six topics, that works towards gaining Level Two credits for the National Certificate of Educational Achievement (NCEA). Three of the standards are assessed internally (10 credits), three of the standards are externally assessed (13 credits) ...
... Year 12 Chemistry is a full year course, of six topics, that works towards gaining Level Two credits for the National Certificate of Educational Achievement (NCEA). Three of the standards are assessed internally (10 credits), three of the standards are externally assessed (13 credits) ...
9182747 Chemistry Ja02
... (1) They are determined by the number of neutrons. (2) They are determined by the number of electrons in the first shell. (3) They change in a generally systematic ...
... (1) They are determined by the number of neutrons. (2) They are determined by the number of electrons in the first shell. (3) They change in a generally systematic ...
chem 100 class notes - Louisiana Tech University
... Classification of compounds as acids, bases and salts Most of the chemical compounds can be classified either as an acid, a base or a salt. Acids: Acids are compounds that increase the hydrogen ion concentration when dissolved in water. They usually have at least one removable hydrogen atom attached ...
... Classification of compounds as acids, bases and salts Most of the chemical compounds can be classified either as an acid, a base or a salt. Acids: Acids are compounds that increase the hydrogen ion concentration when dissolved in water. They usually have at least one removable hydrogen atom attached ...
odd - WWW2
... In the first reaction, phosphine is the Lewis base, hydrogen chloride the Lewis acid. In the second reaction, it is the chloride ion that is the base; boron trichloride is the acid. 15.45 There are two alternatives, one with the single electron in a bond, the other with it on the double-bonded oxyge ...
... In the first reaction, phosphine is the Lewis base, hydrogen chloride the Lewis acid. In the second reaction, it is the chloride ion that is the base; boron trichloride is the acid. 15.45 There are two alternatives, one with the single electron in a bond, the other with it on the double-bonded oxyge ...
Chemical Kinetics
... 1. The stoichiometry of the balanced reaction must be followed. 2. The rate-determining step (RDS) is always the SLOW elementary step of the reaction. The coefficients in the SLOW elementary step and previous steps determine the orders of reactants in the rate law. 3. Intermediates (chemicals produc ...
... 1. The stoichiometry of the balanced reaction must be followed. 2. The rate-determining step (RDS) is always the SLOW elementary step of the reaction. The coefficients in the SLOW elementary step and previous steps determine the orders of reactants in the rate law. 3. Intermediates (chemicals produc ...
Chapter 4: Chemical Reaction Dynamics
... Which reaction product channels are available and how is energy partitioned between them ? What are the physical constraints on a chemical reaction, i.e., are there chemical “selection rules” ? What is the role of angular momentum ? ...
... Which reaction product channels are available and how is energy partitioned between them ? What are the physical constraints on a chemical reaction, i.e., are there chemical “selection rules” ? What is the role of angular momentum ? ...
Example 1-2
... central atom equals the periodic table family number. The only exceptions to this occur in the halogens, where the –ate and the –ic endings correspond to a +5 oxidation state and the noble gases where they correspond to +6. 5. Use solubility rules to predict products of reactions. The attached table ...
... central atom equals the periodic table family number. The only exceptions to this occur in the halogens, where the –ate and the –ic endings correspond to a +5 oxidation state and the noble gases where they correspond to +6. 5. Use solubility rules to predict products of reactions. The attached table ...
Ch. 16 Study Guide
... information given in an equilibrium problem. 21. Key points to keep in mind when performing equilibrium calculations: (1) can only use equilibrium concentrations in the Kc /Kp expression, (2) initial concentrations should be in molarity if using Kc , (3) changes in concentrations always occur in the ...
... information given in an equilibrium problem. 21. Key points to keep in mind when performing equilibrium calculations: (1) can only use equilibrium concentrations in the Kc /Kp expression, (2) initial concentrations should be in molarity if using Kc , (3) changes in concentrations always occur in the ...
The production and use of metals
... Port Talbot Steelworks brought more money, more jobs and therefore more workers into the Port Talbot area as a result, more schools and more houses were built. Over the years as the chemical plant has shut down and steel production has decreased however, also because of pollution, economic prosperit ...
... Port Talbot Steelworks brought more money, more jobs and therefore more workers into the Port Talbot area as a result, more schools and more houses were built. Over the years as the chemical plant has shut down and steel production has decreased however, also because of pollution, economic prosperit ...
Reactions in Aqueous Solution
... Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. ...
... Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. ...
Sample pages 2 PDF
... where A and B are reactants, the exponents x and y are called partial orders of A and B, and k is called the rate constant. The overall order of the reaction is equal to x + y. Since k, x, y, and the concentrations in the second member of (2.8) are experimentally determined quantities, (2.8) is call ...
... where A and B are reactants, the exponents x and y are called partial orders of A and B, and k is called the rate constant. The overall order of the reaction is equal to x + y. Since k, x, y, and the concentrations in the second member of (2.8) are experimentally determined quantities, (2.8) is call ...
Unit 6: Reactions and Stoichiometry
... One of the most well-known numbers in the study of chemistry is number of units in a mole. The number of units in a mole is called Avogadro’s number (named after the Italian physicist). The mole is defined as the number of atoms in 12.0 grams of 12C. As you can tell from the equality below, the mole ...
... One of the most well-known numbers in the study of chemistry is number of units in a mole. The number of units in a mole is called Avogadro’s number (named after the Italian physicist). The mole is defined as the number of atoms in 12.0 grams of 12C. As you can tell from the equality below, the mole ...
Electrochemistry - Menihek Home Page
... permanganate solution, KMnO4. The purple endpoint is reached when 41.45 mL of KMnO4. What is the molar concentration of the KMnO4 solution, given the balanced equation for this titration is: 2 MnO4-(aq) + 5 C2O42-(aq) + 6 H+ 2 Mn2+(aq) + 10 CO2(aq) + 8 H2O(l) ...
... permanganate solution, KMnO4. The purple endpoint is reached when 41.45 mL of KMnO4. What is the molar concentration of the KMnO4 solution, given the balanced equation for this titration is: 2 MnO4-(aq) + 5 C2O42-(aq) + 6 H+ 2 Mn2+(aq) + 10 CO2(aq) + 8 H2O(l) ...
Lewis acid catalysis
In Lewis acid catalysis of organic reactions, a metal-based Lewis acid acts as an electron pair acceptor to increase the reactivity of a substrate. Common Lewis acid catalysts are based on main group metals such as aluminum, boron, silicon, and tin, as well as many early (titanium, zirconium) and late (iron, copper, zinc) d-block metals. The metal atom forms an adduct with a lone-pair bearing electronegative atom in the substrate, such as oxygen (both sp2 or sp3), nitrogen, sulfur, and halogens. The complexation has partial charge-transfer character and makes the lone-pair donor effectively more electronegative, activating the substrate toward nucleophilic attack, heterolytic bond cleavage, or cycloaddition with 1,3-dienes and 1,3-dipoles.Many classical reactions involving carbon–carbon or carbon–heteroatom bond formation can be catalyzed by Lewis acids. Examples include the Friedel-Crafts reaction, the aldol reaction, and various pericyclic processes that proceed slowly at room temperature, such as the Diels-Alder reaction and the ene reaction. In addition to accelerating the reactions, Lewis acid catalysts are able to impose regioselectivity and stereoselectivity in many cases.Early developments in Lewis acid reagents focused on easily available compounds such as TiCl4, BF3, SnCl4, and AlCl3. The relative strengths of these (and other) Lewis acids may be estimated from NMR spectroscopy by the Childs method or the Gutmann-Beckett method. Over the years, versatile catalysts bearing ligands designed for specific applications have facilitated improvement in both reactivity and selectivity of Lewis acid-catalyzed reactions. More recently, Lewis acid catalysts with chiral ligands have become an important class of tools for asymmetric catalysis.Challenges in the development of Lewis acid catalysis include inefficient catalyst turnover (caused by catalyst affinity for the product) and the frequent requirement of two-point binding for stereoselectivity, which often necessitates the use of auxiliary groups.