5/14/01 - Oklahoma State University
... learning cycle. The learning cycle approach, as represented in Figure 2, can also be seen as being divided into phases that are taken in order. First, students are exposed to data (Exploration Phase) from which concepts can be derived (Invention Phase). Students can then apply the concept to other p ...
... learning cycle. The learning cycle approach, as represented in Figure 2, can also be seen as being divided into phases that are taken in order. First, students are exposed to data (Exploration Phase) from which concepts can be derived (Invention Phase). Students can then apply the concept to other p ...
CHEMISTRY 313 PHYSICAL CHEMISTRY I Additional Problems for
... are present and whether they are solid, liquid or gas. (a) One component, pressuretemperature diagram, liquid density greater than that of solid. (b) Two component, temperature-composition solid-liquid diagram, one compound AB formed that melts congruently, negligible solid-solid solubility. III.2. ...
... are present and whether they are solid, liquid or gas. (a) One component, pressuretemperature diagram, liquid density greater than that of solid. (b) Two component, temperature-composition solid-liquid diagram, one compound AB formed that melts congruently, negligible solid-solid solubility. III.2. ...
Reactions in Aqueous Solution
... 11 atm, what is the partial pressure of NO2 in the container when the reaction runs to completion? ( Assume constant temperature) a. 4 atm b. 6 atm c. 11 atm d. 12 atm ...
... 11 atm, what is the partial pressure of NO2 in the container when the reaction runs to completion? ( Assume constant temperature) a. 4 atm b. 6 atm c. 11 atm d. 12 atm ...
Final Exam Review Sheets
... a. temperature: An increase in temperature results in an increase in average kinetic energy of reactants. This means there will be an increase in the number of successful collisions between reactants and an increase in the rate of reaction. b. surface area: an increase in surface area means more rea ...
... a. temperature: An increase in temperature results in an increase in average kinetic energy of reactants. This means there will be an increase in the number of successful collisions between reactants and an increase in the rate of reaction. b. surface area: an increase in surface area means more rea ...
Chemistry (B) Final Exam Study Guide 3
... a. The average kinetic energy of the iron particles would be greater. b. The average kinetic energy of the aluminum particles would be greater. c. There would be no difference in the average kinetic energies. d. No determination can be made based on the information given. ____ 102. The average kinet ...
... a. The average kinetic energy of the iron particles would be greater. b. The average kinetic energy of the aluminum particles would be greater. c. There would be no difference in the average kinetic energies. d. No determination can be made based on the information given. ____ 102. The average kinet ...
Matter and Measurement Ppt.
... • A homogeneous mixture has the same uniform appearance and composition throughout. Many homogeneous mixtures are commonly referred to as solutions. • All components are all in the same phase. • Particles are uniform in size (atoms or molecules) • Can not be separated by physical means. • Can be sep ...
... • A homogeneous mixture has the same uniform appearance and composition throughout. Many homogeneous mixtures are commonly referred to as solutions. • All components are all in the same phase. • Particles are uniform in size (atoms or molecules) • Can not be separated by physical means. • Can be sep ...
Thermo Practice Test
... 24. T - F If H is positive and S is positive, we expect G to be negative only at high temperatures. ...
... 24. T - F If H is positive and S is positive, we expect G to be negative only at high temperatures. ...
Chem 1711 Review Exam 2
... A solution of hydrochloric acid was prepared by measuring 10.00 mL of concentrated acid into a 1.000 L volumetric flask and adding water to the mark. Another solution was prepared by adding 0.530 g of anhydrous sodium carbonate to a 100.0 mL volumetric flask and adding water to the mark. Then, 25.00 ...
... A solution of hydrochloric acid was prepared by measuring 10.00 mL of concentrated acid into a 1.000 L volumetric flask and adding water to the mark. Another solution was prepared by adding 0.530 g of anhydrous sodium carbonate to a 100.0 mL volumetric flask and adding water to the mark. Then, 25.00 ...
How many grams of NH4OH (ammonium hydroxide) are in 3.47
... Which of the following statements is a postulate of kinetic molecular theory? ✓A. The size of a gas particle is negligibly small. B. The average kinetic energy of a gas particle is inversely proportional to the temperature in ...
... Which of the following statements is a postulate of kinetic molecular theory? ✓A. The size of a gas particle is negligibly small. B. The average kinetic energy of a gas particle is inversely proportional to the temperature in ...
Chemical equilibrium and the kinetic theory of gases
... that they use in reactors. Knowledge of how these gases behave under different conditions of temperature and pressure is clearly going to be very important to a chemical engineer – and fortunately the behaviour of all gases is governed to a large extent by an equation known as the ideal gas law. You ...
... that they use in reactors. Knowledge of how these gases behave under different conditions of temperature and pressure is clearly going to be very important to a chemical engineer – and fortunately the behaviour of all gases is governed to a large extent by an equation known as the ideal gas law. You ...
2014 Academic Challenge Sectional Chemistry Exam Solution Set 1
... nature of the reaction requires EAfwd to be less than EArev. It is not required that this obey a first order rate law or be a gas phase reaction (B or D). The dissociation of chlorine gas into chlorine atoms would be an endothermic reaction due to the bond breaking (C). There are no intermediates in ...
... nature of the reaction requires EAfwd to be less than EArev. It is not required that this obey a first order rate law or be a gas phase reaction (B or D). The dissociation of chlorine gas into chlorine atoms would be an endothermic reaction due to the bond breaking (C). There are no intermediates in ...
AP Chemistry Summer Assignment
... 6. What is a binary compound? 7. What is a ternary compound? 8. What is a polyatomic ion? 9. What is a molecular compound? 10. What is a compound? 11. What is an ionic compound? 12. What must be true about al ionic compounds? 13. What charge does each element in a group on the periodic table form? 1 ...
... 6. What is a binary compound? 7. What is a ternary compound? 8. What is a polyatomic ion? 9. What is a molecular compound? 10. What is a compound? 11. What is an ionic compound? 12. What must be true about al ionic compounds? 13. What charge does each element in a group on the periodic table form? 1 ...
Dr. Atiya Abbasi Lecture 04_ IEC_ 16 Jan.ppt
... without prior concentration. Ion exchange thus serves as a useful means of concentrating a sample in addition to fractionating it. ...
... without prior concentration. Ion exchange thus serves as a useful means of concentrating a sample in addition to fractionating it. ...
CHAPTER 1: INTRODUCTION TO ENVIRONMENTAL CHEMISTRY
... A pure substance consisting of only one compound or of only one form of an element The compound water with nothing dissolved in it is a pure substance. Air is a mixture of elemental gases and compounds, predominantly nitrogen, oxygen, argon, carbon dioxide, and water vapor. Drinking water is a mixtu ...
... A pure substance consisting of only one compound or of only one form of an element The compound water with nothing dissolved in it is a pure substance. Air is a mixture of elemental gases and compounds, predominantly nitrogen, oxygen, argon, carbon dioxide, and water vapor. Drinking water is a mixtu ...
CHEM 101 Final (Term 141)
... C) The pressure at the triple point for substance A is higher than that of substance B, but the normal boiling and normal melting point for substance A are lower than those of substance B. D) The pressure at the triple point, normal boiling and normal melting point for substance B and for substance ...
... C) The pressure at the triple point for substance A is higher than that of substance B, but the normal boiling and normal melting point for substance A are lower than those of substance B. D) The pressure at the triple point, normal boiling and normal melting point for substance B and for substance ...
Sample pages 2 PDF
... it is assumed that heat is added at a constant rate. This graph is somewhat idealistic; the slopes (temperature increase) for the solid, liquid and gas will not be equal (each slope will be the inverse of the heat capacity for that particular phase) nor will they be linear since we know that heat ca ...
... it is assumed that heat is added at a constant rate. This graph is somewhat idealistic; the slopes (temperature increase) for the solid, liquid and gas will not be equal (each slope will be the inverse of the heat capacity for that particular phase) nor will they be linear since we know that heat ca ...
Standard Enthalpy of Formation
... Standard Enthalpy of Formation Standard Enthalpy of Formation (or Standard Heat of Formation) of a pure substance at T is for the process in which 1 mol of the substance in its standard state at T is formed from the corresponding separated elements at T, each element being in its reference form. ...
... Standard Enthalpy of Formation Standard Enthalpy of Formation (or Standard Heat of Formation) of a pure substance at T is for the process in which 1 mol of the substance in its standard state at T is formed from the corresponding separated elements at T, each element being in its reference form. ...
Test review
... What will happen to a reaction mixture at equilibrium if a. H2O(g) is removed? b. The temperature is increased (the reaction is endothermic)? c. An inert gas is added? d. CO(g) is removed? e. The volume of the container is tripled? 11. What will happen to the number of moles of SO3 in equilibrium wi ...
... What will happen to a reaction mixture at equilibrium if a. H2O(g) is removed? b. The temperature is increased (the reaction is endothermic)? c. An inert gas is added? d. CO(g) is removed? e. The volume of the container is tripled? 11. What will happen to the number of moles of SO3 in equilibrium wi ...
Exam #2
... (E) Sodium acetate, CH3COONa 44. The metal calcium reacts with molecular hydrogen to form a compound. All of the following statements concerning this compound are true EXCEPT: (A) Its formula is CaH2. (B) It is ionic. (C) It is solid at room temperatur(E) (D) When added to water, it reacts to produc ...
... (E) Sodium acetate, CH3COONa 44. The metal calcium reacts with molecular hydrogen to form a compound. All of the following statements concerning this compound are true EXCEPT: (A) Its formula is CaH2. (B) It is ionic. (C) It is solid at room temperatur(E) (D) When added to water, it reacts to produc ...
quiz questions chapters 1
... At one atmosphere pressure, mercury solidifies at -38.0 F. Express this temperature in degrees Celsius and Kelvin. A) -126 oC and 147 K B) -39 oC and 234 K C) -21 oC and 252 K D) 39 oC and 312 K E) -68 oC and 205 K ...
... At one atmosphere pressure, mercury solidifies at -38.0 F. Express this temperature in degrees Celsius and Kelvin. A) -126 oC and 147 K B) -39 oC and 234 K C) -21 oC and 252 K D) 39 oC and 312 K E) -68 oC and 205 K ...
2002 local exam - Virginia Section
... 66. Boron trichloride, BCl3, is a planar molecule while NCl3 is pyramidal can best be explained by: (A) nitrogen is more electronegative than boron (B) the nitrogen atom in NCl3 has a lone pair of electrons and the boron atom in BCl3 does not. (C) the nitrogen atom is smaller than the boron ...
... 66. Boron trichloride, BCl3, is a planar molecule while NCl3 is pyramidal can best be explained by: (A) nitrogen is more electronegative than boron (B) the nitrogen atom in NCl3 has a lone pair of electrons and the boron atom in BCl3 does not. (C) the nitrogen atom is smaller than the boron ...
Paper 3 - TheAllPapers
... Choose a gas from the following list to answer the questions below. Each gas may be used once, more than once or not at all. ...
... Choose a gas from the following list to answer the questions below. Each gas may be used once, more than once or not at all. ...
Oxygen - Matheson
... Oxygen is widely applied in the metal industries in conjunction with acetylene and other fuel gases for metal cutting, welding, scarfing, hardening, cleaning and melting. Steel and iron manufacturers also extensively use oxygen or oxygen-enriched air to affect chemical refining and heating associate ...
... Oxygen is widely applied in the metal industries in conjunction with acetylene and other fuel gases for metal cutting, welding, scarfing, hardening, cleaning and melting. Steel and iron manufacturers also extensively use oxygen or oxygen-enriched air to affect chemical refining and heating associate ...
Gas chromatography
Gas chromatography (GC) is a common type of chromatography used in analytical chemistry for separating and analyzing compounds that can be vaporized without decomposition. Typical uses of GC include testing the purity of a particular substance, or separating the different components of a mixture (the relative amounts of such components can also be determined). In some situations, GC may help in identifying a compound. In preparative chromatography, GC can be used to prepare pure compounds from a mixture.In gas chromatography, the mobile phase (or ""moving phase"") is a carrier gas, usually an inert gas such as helium or an unreactive gas such as nitrogen. The stationary phase is a microscopic layer of liquid or polymer on an inert solid support, inside a piece of glass or metal tubing called a column (a homage to the fractionating column used in distillation). The instrument used to perform gas chromatography is called a gas chromatograph (or ""aerograph"", ""gas separator"").The gaseous compounds being analyzed interact with the walls of the column, which is coated with a stationary phase. This causes each compound to elute at a different time, known as the retention time of the compound. The comparison of retention times is what gives GC its analytical usefulness.Gas chromatography is in principle similar to column chromatography (as well as other forms of chromatography, such as HPLC, TLC), but has several notable differences. First, the process of separating the compounds in a mixture is carried out between a liquid stationary phase and a gas mobile phase, whereas in column chromatography the stationary phase is a solid and the mobile phase is a liquid. (Hence the full name of the procedure is ""Gas–liquid chromatography"", referring to the mobile and stationary phases, respectively.) Second, the column through which the gas phase passes is located in an oven where the temperature of the gas can be controlled, whereas column chromatography (typically) has no such temperature control. Finally, the concentration of a compound in the gas phase is solely a function of the vapor pressure of the gas.Gas chromatography is also similar to fractional distillation, since both processes separate the components of a mixture primarily based on boiling point (or vapor pressure) differences. However, fractional distillation is typically used to separate components of a mixture on a large scale, whereas GC can be used on a much smaller scale (i.e. microscale).Gas chromatography is also sometimes known as vapor-phase chromatography (VPC), or gas–liquid partition chromatography (GLPC). These alternative names, as well as their respective abbreviations, are frequently used in scientific literature. Strictly speaking, GLPC is the most correct terminology, and is thus preferred by many authors.