CHEMICAL EQUATIONS - Clayton State University
... - The coefficients in a chemical equation are the smallest set of whole numbers that balance the equation C2H5OH(l) + O2(g) → 2CO2(g) + 3H2O(g) 3(1x2)=6 H atoms (5+1)=6 H atoms ...
... - The coefficients in a chemical equation are the smallest set of whole numbers that balance the equation C2H5OH(l) + O2(g) → 2CO2(g) + 3H2O(g) 3(1x2)=6 H atoms (5+1)=6 H atoms ...
Basic Concepts
... • can be calculated when equilibrium concentrations, or partial pressures are substituted into the equilibrium constant expression for the reaction. • When equilibrium concentrations are not given the equilibrium concentrations can be obtained from the initial concentrations of the reactants and the ...
... • can be calculated when equilibrium concentrations, or partial pressures are substituted into the equilibrium constant expression for the reaction. • When equilibrium concentrations are not given the equilibrium concentrations can be obtained from the initial concentrations of the reactants and the ...
Basic Concepts - Department of Chemistry
... – Values of K greater than 103 indicate a strong tendency for reactants to form products, so equilibrium lies to the right, favoring the formation of products (kf >>kr) – Values of K less than 10–3 indicate that the ratio of products to reactants at equilibrium is very small; reactants do not tend t ...
... – Values of K greater than 103 indicate a strong tendency for reactants to form products, so equilibrium lies to the right, favoring the formation of products (kf >>kr) – Values of K less than 10–3 indicate that the ratio of products to reactants at equilibrium is very small; reactants do not tend t ...
Equilibrium
... The value of the equilibrium constant for any reaction can be determined by experiment. As detailed in the above section, the equilibrium position for a given reaction does not depend on the starting concentrations, so the equilibrium constant has the same value regardless of the initial amounts of ...
... The value of the equilibrium constant for any reaction can be determined by experiment. As detailed in the above section, the equilibrium position for a given reaction does not depend on the starting concentrations, so the equilibrium constant has the same value regardless of the initial amounts of ...
Ch16
... The equilibrium constant for the reaction given by the equation: 2HI(g) H2(g) + I2(g) is 48.8 at 455°C. An equilibrium mixture in a 2.0 L vessel at this temperature contains 0.220 mol of H2 and 0.110 mol of I2. a Calculate the concentration of HI in this mixture. b Another mixture was prepared by ...
... The equilibrium constant for the reaction given by the equation: 2HI(g) H2(g) + I2(g) is 48.8 at 455°C. An equilibrium mixture in a 2.0 L vessel at this temperature contains 0.220 mol of H2 and 0.110 mol of I2. a Calculate the concentration of HI in this mixture. b Another mixture was prepared by ...
Spring 2008
... Answer D [H+] = 10-9.097 = 8.0 x 10-10 26. For the reaction: aA(g) + bB(g) cC(g) + heat with a = 1, b=1 and c=1. An increase in total pressure (at const T) A. increases the number of moles of A B. decreases the number of moles of A C. does not change the number of moles of A Answer B There are more ...
... Answer D [H+] = 10-9.097 = 8.0 x 10-10 26. For the reaction: aA(g) + bB(g) cC(g) + heat with a = 1, b=1 and c=1. An increase in total pressure (at const T) A. increases the number of moles of A B. decreases the number of moles of A C. does not change the number of moles of A Answer B There are more ...
updated chem cp final review key
... f. Adding an enzyme Increases rate of reaction g. Breaking a reactant into smaller pieces Increases rate of reaction 43. Know what conditions are true of a chemical reaction at equilibrium. (1) rates of forward and reverse reactions are equal. (2) The concentrations of all substances involved stop ...
... f. Adding an enzyme Increases rate of reaction g. Breaking a reactant into smaller pieces Increases rate of reaction 43. Know what conditions are true of a chemical reaction at equilibrium. (1) rates of forward and reverse reactions are equal. (2) The concentrations of all substances involved stop ...
SYLLABUS 5070 Cambridge O Level Chemistry
... 1.2 Methods of purification and analysis (a) describe methods of purification by the use of a suitable solvent, filtration and crystallisation, distillation and fractional distillation, with particular references to the fractional distillation of crude oil, liquid air and fermented liquor (b) sugges ...
... 1.2 Methods of purification and analysis (a) describe methods of purification by the use of a suitable solvent, filtration and crystallisation, distillation and fractional distillation, with particular references to the fractional distillation of crude oil, liquid air and fermented liquor (b) sugges ...
Medicinal Chemistry
... pharmacy - the department of medicinal chemistry consists of a diverse group of faculty members phd graduate students postdoctoral fellows and research scientists working at, the essential medicinal chemistry of curcumin journal of - department of medicinal chemistry institute for therapeutics disco ...
... pharmacy - the department of medicinal chemistry consists of a diverse group of faculty members phd graduate students postdoctoral fellows and research scientists working at, the essential medicinal chemistry of curcumin journal of - department of medicinal chemistry institute for therapeutics disco ...
TOPIC 11 Further equilibrium 11.1 Chemical equilibrium
... Since sulfuric acid does not appear in the expression for Kc, changes in its concentration do not affect the value of the ratio ...
... Since sulfuric acid does not appear in the expression for Kc, changes in its concentration do not affect the value of the ratio ...
Unit 3: 1 Equilibrium and the Constant, K
... II) Most chemical reactions (and virtually all physical changes involved in chemistry) are reversible. A) We tend to write only 1 equation … but under the correct conditions, a reaction equation, could symbolize two possible reactions occurring, simultaneously. 1) Before launching into this convers ...
... II) Most chemical reactions (and virtually all physical changes involved in chemistry) are reversible. A) We tend to write only 1 equation … but under the correct conditions, a reaction equation, could symbolize two possible reactions occurring, simultaneously. 1) Before launching into this convers ...
Unit F325 - Equilibria, energetics and elements - High band
... OCR has produced these candidate style answers to support teachers in interpreting the assessment criteria for the new GCE specifications and to bridge the gap between new specification release and availability of exemplar candidate work. This content has been produced by senior OCR examiners, with ...
... OCR has produced these candidate style answers to support teachers in interpreting the assessment criteria for the new GCE specifications and to bridge the gap between new specification release and availability of exemplar candidate work. This content has been produced by senior OCR examiners, with ...
The First Law of Thermodynamics Does Not Predict Spontaneous
... One Ne atom. At a given instant, an Ne atom in the left flask has its energy in one of some number (W ) of microstates. Opening the stopcock increases the volume, which increases the number of possible locations and the number of translational energy level. Thus, the system has 21, or 2, times as ...
... One Ne atom. At a given instant, an Ne atom in the left flask has its energy in one of some number (W ) of microstates. Opening the stopcock increases the volume, which increases the number of possible locations and the number of translational energy level. Thus, the system has 21, or 2, times as ...
Chemistry RTQ - Standardized Testing and Reporting (CA Dept of
... Students know how to determine the molar mass of a molecule from its chemical formula and a table of atomic masses and how to convert the mass of a molecular substance to moles, number of particles, or volume of gas at standard temperature and pressure. ...
... Students know how to determine the molar mass of a molecule from its chemical formula and a table of atomic masses and how to convert the mass of a molecular substance to moles, number of particles, or volume of gas at standard temperature and pressure. ...
Aldehydes, Ketones and Carboxylic Acids
... are derived from the names of the corresponding alkanes by replacing the ending –e with –al and –one respectively. In case of aldehydes the longest carbon chain is numbered starting from the carbon of the aldehyde group while in case of ketones the numbering begins from the end nearer to the carbony ...
... are derived from the names of the corresponding alkanes by replacing the ending –e with –al and –one respectively. In case of aldehydes the longest carbon chain is numbered starting from the carbon of the aldehyde group while in case of ketones the numbering begins from the end nearer to the carbony ...
File
... the study of quantitative relationships between amounts of ______________________________________________________________ reactants used and products formed by a chemical reaction ______________________________________________________________ ...
... the study of quantitative relationships between amounts of ______________________________________________________________ reactants used and products formed by a chemical reaction ______________________________________________________________ ...
Textbook Answer Keys - Mr. Massey`s Chemistry Pages
... The Bohr theory provided a first approximation of atomic structure, and in particular the arrangement of electrons; it has since been replaced by more sophisticated mathematical theories from the field of quantum mechanics, which incorporate the wave-like nature of the electron; the wavefunctions of ...
... The Bohr theory provided a first approximation of atomic structure, and in particular the arrangement of electrons; it has since been replaced by more sophisticated mathematical theories from the field of quantum mechanics, which incorporate the wave-like nature of the electron; the wavefunctions of ...
Oxidation numbers
... 4. In a polyatomic ion the sum of the oxidation numbers is equal to the charge. For example the sum of the oxidation numbers for the elements in the sulfate ion (SO2−4) will be −2. 5. An oxygen atom usually has an oxidation number of −2. One exception is in peroxides (e.g. hydrogen peroxide) when ox ...
... 4. In a polyatomic ion the sum of the oxidation numbers is equal to the charge. For example the sum of the oxidation numbers for the elements in the sulfate ion (SO2−4) will be −2. 5. An oxygen atom usually has an oxidation number of −2. One exception is in peroxides (e.g. hydrogen peroxide) when ox ...
Worked solutions to the problems
... your students need to show in Melbourne. We have tried to highlight the procedures in each exercise that need some particular caution, even for students of Olympiad level but our warnings cannot be comprehensive - your students will still need your careful supervision. We have also not included spec ...
... your students need to show in Melbourne. We have tried to highlight the procedures in each exercise that need some particular caution, even for students of Olympiad level but our warnings cannot be comprehensive - your students will still need your careful supervision. We have also not included spec ...
Chemical Equilibrium
... leak brings in as much water as you bail out. You are at equilibrium. Two opposing processes have reached the same speed, and there is no more overall change in the process. Chemical reactions are like that as well. Most of them come to an equilibrium. The actual position of the equilibrium—whether ...
... leak brings in as much water as you bail out. You are at equilibrium. Two opposing processes have reached the same speed, and there is no more overall change in the process. Chemical reactions are like that as well. Most of them come to an equilibrium. The actual position of the equilibrium—whether ...