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Name Section Date Experiment 11 Kinetics and Equilibrium Postlaboratory Questions 1. Name three ways to increase...
EXPERIMENT 18 NAME DATE SECTION POSTLABORATORY ASSIGNMENT 1. Find the number of valence electrons (VE) for...
EXPERIMENT 18 NAME DATE SECTION POSTLABORATORY ASSIGNMENT 1. Find the number of valence electrons (VE) for the following molecules. Draw the electron dot formula and structural formula for each molecule. The central atom is shown in bold. Molecule Electron Dot Formula Structural Formula (a) HOB DE THOSE VEN (b) PI 3 VE = (c) SiF4 VE (d) CS2 VE = (e) SO2 VE = Copyright © 2013 Pearson Education Molecular Models 215
Determination of an Activation Energy-An Application of Kinetics Postlab B Date Name CHM123L section Instructor 1....
Determination of an Activation Energy-An Application of Kinetics Postlab B Date Name CHM123L section Instructor 1. Label the energy diagrams with the following: Reactants, Products, Activation energy (include arrow) Heat absorbed or Heat released (include arrow) Potential Energy Potential Energy Reaction Progress Reaction Progress Exothermic Endothermic reaction reaction 2. During this experiment, the absorbance of solutions of iron (11) phenanthroline was monitored at various temperatures. At all temperatures the absorbance of the solution decreased over time. a. Explain what was...
Determination of an Activation Energy-An Application of Kinetics Postlab B Date Name CHM123L section Instructor 1....
Determination of an Activation Energy-An Application of Kinetics Postlab B Date Name CHM123L section Instructor 1. Label the energy diagrams with the following: Reactants. Products, Activation energy include arrow) Heat absorbed or Heat released include arrow) Potential Energy Potential Energy Reaction Progress Reaction Progress Exothermic Endothermic reaction reaction 2. During this experiment, the absorbance of solutions of iron (11) phenanthroline was monitored at various temperatures. At all temperatures the absorbance of the solution decreased over time. a. Explain what was...
Experiment #9: Heats of Reaction Pre-Lab Questions Name Date Lab Mamal helps in answering the following...
Experiment #9: Heats of Reaction Pre-Lab Questions Name Date Lab Mamal helps in answering the following questions 1. A reaction in which heat is absorbed is called a. Endothermic b. Exothermic c. Cooling d. Heating 2. A reaction where heat is released is called a. Endothermic b. Exothermic c. Cooling d. Heating 3. The energy change of a reaction that occurs at constant pressure is called the a. Total energy change b. Work c. Heat of reaction d pressure 4....
Analysis of Vinegar EXPERIMENT NAME SECTION DATE POSTLABORATORY ASSIGNMENT 1. A standard nitric acid solution is...
Analysis of Vinegar EXPERIMENT NAME SECTION DATE POSTLABORATORY ASSIGNMENT 1. A standard nitric acid solution is prepared using 0.425 g of sodium carbonate, NaCO3. Find the molarity of the acid if 33.25 mL are required to reach a permanent endpoint. 2 HNO, (aq) + Na2CO3(s) + 2 NaNO3(aq) + H2O(l) + CO2(g) 2 H OT 2. A 10.0-ml sample of household ammonia solution required 27.50 mL of 0.241 M HNO3 for neutralization. Calculate (a) the molar concentration of the ammonia...
double displacement NAME SECTION INSTRUCTOR DATE REPORT FOR EXPERIMENT 11 Double Displacement Reactions Directions for completing...
double displacement
NAME SECTION INSTRUCTOR DATE REPORT FOR EXPERIMENT 11 Double Displacement Reactions Directions for completing table below: 1. Record your observations Evidence of Reaction) of each experiment. Use the following terminology: (a) "Precipitate formed" (include the color), (b) "Gas evolved." (e) "Heat evolved," or (d) "No reaction observed." 2. Complete and balance the equation for each case in which a reaction occurred. First write the correct formulas for the products, taking into account the charges (oxidation numbers of the...
Name Section QUESTIONS: EXPERIMENT 23 Date 1. A unknown metal, M, is the anode in an...
Name Section QUESTIONS: EXPERIMENT 23 Date 1. A unknown metal, M, is the anode in an electrolysis cell undergoing the following reaction: M(s) 2 HoM2 (aq)H2(8) 2O (aq) 43.0 mL of H2 gas is collected by water displacement in a similar manner to that done in your experiment. Atmospheric pressure in the laboratory is 755 mm Hg and the temperature was 29.0°C. Ifo.194 g of metal is consumed in the reaction, what is the identity of the unknown metal? The...
EXPERIMENT 8 Post-Lab Questions Name: Leiseu Scalish Section: 1. Consider the following system at equilibrium in...
EXPERIMENT 8 Post-Lab Questions Name: Leiseu Scalish Section: 1. Consider the following system at equilibrium in a closed container (pressure at 1 atm): NaOH(s) + CO2(g) + NaHCO3(s) AHºrn < 0 Concentration of CO2 gas present at equilibrium can be decreased by True or False (T or F) adding N2 gas to double the pressure adding more NaOH increasing the volume of the container lowering the temperature (10
Name Section Experiment 14 Data and Calculations: Heat Effects and Calorimetry A. Specific Heat Trial 1...
Name Section Experiment 14 Data and Calculations: Heat Effects and Calorimetry A. Specific Heat Trial 1 Mass of stoppered test tube plus metal Mass of test tube and stopper Mass of calorimeter 7.2 g Mass of calorimeter and water 46-1 Mass of water 40-0 Mass of metal 113.6 21.2 . °c Initial temperature of water in calorimeter Initial temperature of metal (assume 100°C unless directed to do otherwise) 100 °c Equilibrium temperature of metal and water in calorimeter 25.1 3.9...
Name R number TA Laboratory Date Section Experiment 3 - Post-Laboratory Questions 1. Use the Arrhenius...
Name R number TA Laboratory Date Section Experiment 3 - Post-Laboratory Questions 1. Use the Arrhenius eq uation parameters (A and Ea) determined for the uncatalyzed, Fe (aq)Fe2 (aq) catalyzed, and Cu? (aa)/Cu (ag) catalyzed reaction to predict the reaction rate constant at 100 °C for each case. T= 373 K As us triiodide ion (I(aą)) is shown as the product of reaction (14); however,
EXPERIMENT 18 NAME DATE SECTION POSTLABORATORY ASSIGNMENT 1. Find the number of valence electrons (VE) for the following molecules. Draw the electron dot formula and structural formula for each molecule. The central atom is shown in bold. Molecule Electron Dot Formula Structural Formula (a) HOB DE THOSE VEN (b) PI 3 VE = (c) SiF4 VE (d) CS2 VE = (e) SO2 VE = Copyright © 2013 Pearson Education Molecular Models 215
Determination of an Activation Energy-An Application of Kinetics Postlab B Date Name CHM123L section Instructor 1. Label the energy diagrams with the following: Reactants, Products, Activation energy (include arrow) Heat absorbed or Heat released (include arrow) Potential Energy Potential Energy Reaction Progress Reaction Progress Exothermic Endothermic reaction reaction 2. During this experiment, the absorbance of solutions of iron (11) phenanthroline was monitored at various temperatures. At all temperatures the absorbance of the solution decreased over time. a. Explain what was...
Determination of an Activation Energy-An Application of Kinetics Postlab B Date Name CHM123L section Instructor 1. Label the energy diagrams with the following: Reactants. Products, Activation energy include arrow) Heat absorbed or Heat released include arrow) Potential Energy Potential Energy Reaction Progress Reaction Progress Exothermic Endothermic reaction reaction 2. During this experiment, the absorbance of solutions of iron (11) phenanthroline was monitored at various temperatures. At all temperatures the absorbance of the solution decreased over time. a. Explain what was...
Experiment #9: Heats of Reaction Pre-Lab Questions Name Date Lab Mamal helps in answering the following questions 1. A reaction in which heat is absorbed is called a. Endothermic b. Exothermic c. Cooling d. Heating 2. A reaction where heat is released is called a. Endothermic b. Exothermic c. Cooling d. Heating 3. The energy change of a reaction that occurs at constant pressure is called the a. Total energy change b. Work c. Heat of reaction d pressure 4....
Analysis of Vinegar EXPERIMENT NAME SECTION DATE POSTLABORATORY ASSIGNMENT 1. A standard nitric acid solution is prepared using 0.425 g of sodium carbonate, NaCO3. Find the molarity of the acid if 33.25 mL are required to reach a permanent endpoint. 2 HNO, (aq) + Na2CO3(s) + 2 NaNO3(aq) + H2O(l) + CO2(g) 2 H OT 2. A 10.0-ml sample of household ammonia solution required 27.50 mL of 0.241 M HNO3 for neutralization. Calculate (a) the molar concentration of the ammonia...
double displacement
NAME SECTION INSTRUCTOR DATE REPORT FOR EXPERIMENT 11 Double Displacement Reactions Directions for completing table below: 1. Record your observations Evidence of Reaction) of each experiment. Use the following terminology: (a) "Precipitate formed" (include the color), (b) "Gas evolved." (e) "Heat evolved," or (d) "No reaction observed." 2. Complete and balance the equation for each case in which a reaction occurred. First write the correct formulas for the products, taking into account the charges (oxidation numbers of the...
Name Section QUESTIONS: EXPERIMENT 23 Date 1. A unknown metal, M, is the anode in an electrolysis cell undergoing the following reaction: M(s) 2 HoM2 (aq)H2(8) 2O (aq) 43.0 mL of H2 gas is collected by water displacement in a similar manner to that done in your experiment. Atmospheric pressure in the laboratory is 755 mm Hg and the temperature was 29.0°C. Ifo.194 g of metal is consumed in the reaction, what is the identity of the unknown metal? The...
EXPERIMENT 8 Post-Lab Questions Name: Leiseu Scalish Section: 1. Consider the following system at equilibrium in a closed container (pressure at 1 atm): NaOH(s) + CO2(g) + NaHCO3(s) AHºrn < 0 Concentration of CO2 gas present at equilibrium can be decreased by True or False (T or F) adding N2 gas to double the pressure adding more NaOH increasing the volume of the container lowering the temperature (10
Name Section Experiment 14 Data and Calculations: Heat Effects and Calorimetry A. Specific Heat Trial 1 Mass of stoppered test tube plus metal Mass of test tube and stopper Mass of calorimeter 7.2 g Mass of calorimeter and water 46-1 Mass of water 40-0 Mass of metal 113.6 21.2 . °c Initial temperature of water in calorimeter Initial temperature of metal (assume 100°C unless directed to do otherwise) 100 °c Equilibrium temperature of metal and water in calorimeter 25.1 3.9...
Name R number TA Laboratory Date Section Experiment 3 - Post-Laboratory Questions 1. Use the Arrhenius eq uation parameters (A and Ea) determined for the uncatalyzed, Fe (aq)Fe2 (aq) catalyzed, and Cu? (aa)/Cu (ag) catalyzed reaction to predict the reaction rate constant at 100 °C for each case. T= 373 K As us triiodide ion (I(aą)) is shown as the product of reaction (14); however,
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