File
... ΔH° for the above reaction = +15 kilocalories The forward reaction is slow at room temperature but becomes rapid when a catalyst is added. (a) Draw a diagram of potential energy vs reaction coordinate for the uncatalyzed reaction. On this diagram label: (1) the axes (2) the energies of the reactants ...
... ΔH° for the above reaction = +15 kilocalories The forward reaction is slow at room temperature but becomes rapid when a catalyst is added. (a) Draw a diagram of potential energy vs reaction coordinate for the uncatalyzed reaction. On this diagram label: (1) the axes (2) the energies of the reactants ...
Mole Equation Homework Hint: Start equations with the numbers
... Hint: Start equations with the numbers given, and pay close attention to what the question is asking you to find. Usually, the first step in most stoichiometry problems (calculation of quantities in chemical equations) is to convert the given numbers to moles. SHOW YOUR WORK!!!!!!!!!!!!!!!!!!!!!!!!! ...
... Hint: Start equations with the numbers given, and pay close attention to what the question is asking you to find. Usually, the first step in most stoichiometry problems (calculation of quantities in chemical equations) is to convert the given numbers to moles. SHOW YOUR WORK!!!!!!!!!!!!!!!!!!!!!!!!! ...
Chemkin-Pro
... combustor design. LBO occurs when the heat generated by chemical reactions is no longer sufficient to ignite the incoming fuel/air mixture to sustain the flame. In low-NOx combustor design, the low NOx limit is often bound by the onset of combustion instability in the form of LBO. Identifying the on ...
... combustor design. LBO occurs when the heat generated by chemical reactions is no longer sufficient to ignite the incoming fuel/air mixture to sustain the flame. In low-NOx combustor design, the low NOx limit is often bound by the onset of combustion instability in the form of LBO. Identifying the on ...
Test 8 Review
... in the combined gas law. T1 T2 Ideal Gases. In order to study gases, chemists have devised a model. The model is called an ideal gas (a gas which explains the behavior of all gases). This Ideal Gas Kinetic theory of gases (under ideal circumstances) model is based on the assumptions to the right, an ...
... in the combined gas law. T1 T2 Ideal Gases. In order to study gases, chemists have devised a model. The model is called an ideal gas (a gas which explains the behavior of all gases). This Ideal Gas Kinetic theory of gases (under ideal circumstances) model is based on the assumptions to the right, an ...
2009 - NESACS
... 2009 Ashdown Examination 69. In the diagram to the right, the smaller filled circles represent electrons. The larger filled circles represent Si atoms. The patterned circle represents a doping atom. What type of semi-conductor is shown in this diagram? A. a gallium-doped p-type silicon semi-conduct ...
... 2009 Ashdown Examination 69. In the diagram to the right, the smaller filled circles represent electrons. The larger filled circles represent Si atoms. The patterned circle represents a doping atom. What type of semi-conductor is shown in this diagram? A. a gallium-doped p-type silicon semi-conduct ...
CH225h - Oregon State chemistry
... The rms speeds are inversely proportional to the square root of mass, so the ratio of Ar speed / He speed is ≈ sqrt (4/40) ≈ 0.3 (b) If Ar, He, and Xe are mixed with equal partial pressures in a gas sample, which will effuse most rapidly through a small hole in the container ? Explain briefly. He. E ...
... The rms speeds are inversely proportional to the square root of mass, so the ratio of Ar speed / He speed is ≈ sqrt (4/40) ≈ 0.3 (b) If Ar, He, and Xe are mixed with equal partial pressures in a gas sample, which will effuse most rapidly through a small hole in the container ? Explain briefly. He. E ...
CHEMISTRY SEMESTER ONE LAB 1 Lab 1: Stoichiometry and
... sulfate. This reaction produces metallic copper, which is seen precipitating as a finely divided red powder. The reaction in which one metal replaces another metal from a solution of one of its salts is known as a displacement reaction. A metal capable of displacing another metal from a solution of ...
... sulfate. This reaction produces metallic copper, which is seen precipitating as a finely divided red powder. The reaction in which one metal replaces another metal from a solution of one of its salts is known as a displacement reaction. A metal capable of displacing another metal from a solution of ...
June 01, 2008
... Explain how you could test for the carbon-containing gas liberated AND provide a chemical equation as part of you explanation. ...
... Explain how you could test for the carbon-containing gas liberated AND provide a chemical equation as part of you explanation. ...
Chemistry EOC Review
... Directions: The following is an End-Of-Course Review Guide designed to assist you as prepare for your EOC. It is imperative that you complete this guide to the best of your ability. This will help you to achieve a higher average on your third quarter grade. Answer as many questions as possible – you ...
... Directions: The following is an End-Of-Course Review Guide designed to assist you as prepare for your EOC. It is imperative that you complete this guide to the best of your ability. This will help you to achieve a higher average on your third quarter grade. Answer as many questions as possible – you ...
Open questions (66 points total
... There are 2 optical isomers of 2-chloropentane: a R-isomer and a S-isomer. There are also 2 optical isomers of 2-methoxypentane. If only (optical active) R-2-chloropentane reacts with a solution of sodium methanolate in methanol, both optical isomers of 2-methoxypentane are formed. As it turns out, ...
... There are 2 optical isomers of 2-chloropentane: a R-isomer and a S-isomer. There are also 2 optical isomers of 2-methoxypentane. If only (optical active) R-2-chloropentane reacts with a solution of sodium methanolate in methanol, both optical isomers of 2-methoxypentane are formed. As it turns out, ...
3 CHEMICAL THERMODYNAMICS
... • Variables that define the state of a system. Extensive variables are proportional to the quantity of matter being considered (V, total Cp). Intensive variables are independent of quantity (concentration, viscosity, density, molar Cp) 5. Work (w): “The transfer of energy from one mechanical system ...
... • Variables that define the state of a system. Extensive variables are proportional to the quantity of matter being considered (V, total Cp). Intensive variables are independent of quantity (concentration, viscosity, density, molar Cp) 5. Work (w): “The transfer of energy from one mechanical system ...
2 - My CCSD
... Never change a subscript to balance an equation (You can only change coefficients) – If you change the subscript (formula) you are describing a different chemical. – H2O is a different compound than H2O2 Never put a coefficient in the middle of a formula; they must go only in the front ...
... Never change a subscript to balance an equation (You can only change coefficients) – If you change the subscript (formula) you are describing a different chemical. – H2O is a different compound than H2O2 Never put a coefficient in the middle of a formula; they must go only in the front ...
2 - CronScience
... Never change a subscript to balance an equation (You can only change coefficients) – If you change the subscript (formula) you are describing a different chemical. – H2O is a different compound than H2O2 Never put a coefficient in the middle of a formula; they must go only in the front ...
... Never change a subscript to balance an equation (You can only change coefficients) – If you change the subscript (formula) you are describing a different chemical. – H2O is a different compound than H2O2 Never put a coefficient in the middle of a formula; they must go only in the front ...
The Mole Ratio · the ratio between the molar amounts of any two
... another reactant or product in the reaction ...
... another reactant or product in the reaction ...
Examination
... 52 Identify the element in Period 3 that is an unreactive gas at STP. [1] 53 Compare the energy of an electron in the first shell of a cadmium atom to the energy of an electron in the third shell of the same atom. [1] ...
... 52 Identify the element in Period 3 that is an unreactive gas at STP. [1] 53 Compare the energy of an electron in the first shell of a cadmium atom to the energy of an electron in the third shell of the same atom. [1] ...
Final Review 2006
... ____ 76. What principle states that atoms tend to form compounds so that each atom can have eight electrons in its outermost energy level? a. rule of eights c. configuration rule b. Avogadro principle d. octet rule ____ 77. Multiple covalent bonds may occur in atoms that contain carbon, nitrogen, or ...
... ____ 76. What principle states that atoms tend to form compounds so that each atom can have eight electrons in its outermost energy level? a. rule of eights c. configuration rule b. Avogadro principle d. octet rule ____ 77. Multiple covalent bonds may occur in atoms that contain carbon, nitrogen, or ...
in a Chemical Reactor - Max-Planck
... only at high temperatures, or even release energy in the form of heat as they react with each other. We use this heat to distill the reaction mixture while the chemical reaction is still under way. This is a particularly sensible approach if the product we are after breaks out of the reaction mixtur ...
... only at high temperatures, or even release energy in the form of heat as they react with each other. We use this heat to distill the reaction mixture while the chemical reaction is still under way. This is a particularly sensible approach if the product we are after breaks out of the reaction mixtur ...
study packet for chapter 5
... D) condensation of water vapor E) Ammonium thiocyanate and barium hydroxide are mixed at 25 °C: the temperature drops. ...
... D) condensation of water vapor E) Ammonium thiocyanate and barium hydroxide are mixed at 25 °C: the temperature drops. ...
Review Material
... Relative Sizes of Ions For the Representative (s-block and p-block) Elements that form positive ions (cations), the radius of the positive ion will always be smaller than the radius of the corresponding atom. This is due primarily to the fact that when these elements form ions the outermost shell (h ...
... Relative Sizes of Ions For the Representative (s-block and p-block) Elements that form positive ions (cations), the radius of the positive ion will always be smaller than the radius of the corresponding atom. This is due primarily to the fact that when these elements form ions the outermost shell (h ...
Bioorthogonal chemistry
The term bioorthogonal chemistry refers to any chemical reaction that can occur inside of living systems without interfering with native biochemical processes. The term was coined by Carolyn R. Bertozzi in 2003. Since its introduction, the concept of the bioorthogonal reaction has enabled the study of biomolecules such as glycans, proteins, and lipids in real time in living systems without cellular toxicity. A number of chemical ligation strategies have been developed that fulfill the requirements of bioorthogonality, including the 1,3-dipolar cycloaddition between azides and cyclooctynes (also termed copper-free click chemistry), between nitrones and cyclooctynes, oxime/hydrazone formation from aldehydes and ketones, the tetrazine ligation, the isocyanide-based click reaction, and most recently, the quadricyclane ligation.The use of bioorthogonal chemistry typically proceeds in two steps. First, a cellular substrate is modified with a bioorthogonal functional group (chemical reporter) and introduced to the cell; substrates include metabolites, enzyme inhibitors, etc. The chemical reporter must not alter the structure of the substrate dramatically to avoid affecting its bioactivity. Secondly, a probe containing the complementary functional group is introduced to react and label the substrate.Although effective bioorthogonal reactions such as copper-free click chemistry have been developed, development of new reactions continues to generate orthogonal methods for labeling to allow multiple methods of labeling to be used in the same biosystems.