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Section II. Short answer. (Record all answers on the answer sheet...
help help help pls! 17. The value of AH° for the reaction below is -790 kJ/mol....
help help help pls!
17. The value of AH° for the reaction below is -790 kJ/mol. What is the enthalpy change accompanying when 0.95 g of S is completely reacted? 2S (s)302 (g) -2SO3 (g) 18. What is the enthalpy of the following reaction: 4 HCI(g) + O2(g) Given the following thermochemical equations: H2(g)+Cla(g)-2 HCI(g) 2 H2(s)O2(g)- 2 H20(g) 2 Cl2 +2 H2O (g)? AH -185 kJ AH-483.7 kJ
8) For which one of the following reactions is AHⓇxn equal to the heat of formation...
8) For which one of the following reactions is AHⓇxn equal to the heat of formation of the product? A) N2(g) + 3H2(g) + 2NH3 (8) B)(1/2)N2(g) + O2(g) → NO2(g) C) 6C(s) + 6H (g) → C6H6 (1) D) P (8) + 4H (g) + Br(g) - PH4Br (1) E) 12C (g) + 11H2(g) + 110 (g) → C6H22011 (8) (8) - PH4Br (1) A 9) The AE of a system that releases 12.4 J of heat and does...
A volume of water was heated to 82.86C and immediately added to 50.31 mL of water...
A volume of water was heated to 82.86C and immediately added to 50.31 mL of water at 22:45 °C contained within a coffee cup calorimeter. The final temperature of the mixture was 37,08°C. The final volume of water inside the calorimeter was 94.33 mL. Calculate the following: Note: Heat capacity a. volume of hot water added is 4.18 *Consider sig fig b. masses of hot and cold water (density of water = 1,00 g/mL) c. changes in temperature (AT) of...
1. A volume of water was heated to 83.90 °C and immediately added to 48.11 mL...
1. A volume of water was heated to 83.90 °C and immediately added to 48.11 mL of water at 23.98 °C contained within a coffee cup calorimeter. The final temperature of the mixture was 40.86 °C. The final volume of water inside the calorimeter was 90.45 mL. Assuming that them heat capacity of the solution is 4.18 J/g/°C, calculate the following: a. The volume of hot water added ml b. The mass of hot water (dwater = 1.00 g/mL) c....
2. A 49.21 mL volume of 1.00 M HCl was mixed with 48.05 mL of 2.00...
2. A 49.21 mL volume of 1.00 M HCl was mixed with 48.05 mL of 2.00 M NaOH in a coffee cup calorimeter (with calorimeter constant = 25.6 J/°C) at 20.32 °C. The final temperature of the aqueous solution after the reaction was 29.83 °C. Assuming that them heat capacity of the solution is 4.18 J/g/°C, calculate the following: a. The total mass of aqueous solution inside the calorimeter (dsoln = 1.00 g/mL) g correct 1/1 b. The change in...
1). A sheet of aluminum foil with a mass of 25 g is taken from a...
1). A sheet of aluminum foil with a mass of 25 g is taken from a room at 25° C and placed in a oven at 200.° C. How much heat does the aluminum absorb? The specific heat of aluminum is 0.90 J/g °C. 2). The value of AH° for the reaction below is -790 kJ. The enthalpy change accompanying the reaction of 0.95 g of S is 28 (s) + 302 (9) — 2503 (9)
Chapter 5 and Chapter 10 Problem solving (please practice the following questions and make sure that you understand...
Chapter 5 and Chapter 10 Problem solving (please practice the following questions and make sure that you understand the principles behind: you can find Ar from textbook or website I. A 145 g sample of copper metal at 100.0°C is placed into 250.0 g of water at 25.0°C in a calorimeter. When the system reaches thermal equilibrium, the temperature of the water in the calorimeter is 28.8°C. Assume the calorimeter is perfectly insulated. What is the specific heat capacity of...
I'd like the answers for 30-33 O 41.2 kJ/mol O 5.48 x10 kJ/mol O 86 kJ/mol...
I'd
like the answers for 30-33
O 41.2 kJ/mol O 5.48 x10 kJ/mol O 86 kJ/mol 48.0 kJ/mol 4.2 Question 30 (2 points) Calculate Ahº for the following reaction, using the given standard enthalpies of formation. 2NO(g) + O2(g) + 2NO2(8) AH°ANO(g)] - 90.25 kJ mol-1 AH®[NO2(g)] = 33.18 kJ mol-1 +57.07 kJ -57.07 kJ O-114.1 kJ +114.1 kJ Question 31 (2 points) The value of AH°for the following reaction is -126 kJ. Determine the amount of heat (in kJ)...
1. A coffee cup calorimeter was used for the neutralization reaction of 100 mL of 1.00...
1. A coffee cup calorimeter was used for the neutralization reaction of 100 mL of 1.00 M hydrochloric acid with 100 mL of 1.20 M sodium hydroxide. The initial temperature was 22.88 °C and the final temperature was 29.39 °C. Calculate the calorimeter constant for the reaction. HCl (aq) + NaOH (aq) NaCl (aq) + H2O (∆H°rxn = -58.3 kJ/mol) 2. The same calorimeter was used for the dissolution of 8.86 g sample of lithium chloride in 100.0 mL of...
1. How much heat is needed to raise the temperature of 1.50 g of aluminum metal from...
1. How much heat is needed to raise the temperature of 1.50 g of aluminum metal from 23.2 °C to 30.5 °C? (Specific heat capacity of aluminum is 0.90 J/g-K). 2. Given the following thermochemical equation: DH = -1107 kJ How many kJ of heat are released when 15.75 g of Ba(s) reacts completely with oxygen to form BaO(s)? 3. Mothballs are composed primarily of the hydrocarbon naphthalene (C10H8). When 1.25 g naphthalene is burned in a bomb calorimeter, the temperature rises from 25.25...
help help help pls!
17. The value of AH° for the reaction below is -790 kJ/mol. What is the enthalpy change accompanying when 0.95 g of S is completely reacted? 2S (s)302 (g) -2SO3 (g) 18. What is the enthalpy of the following reaction: 4 HCI(g) + O2(g) Given the following thermochemical equations: H2(g)+Cla(g)-2 HCI(g) 2 H2(s)O2(g)- 2 H20(g) 2 Cl2 +2 H2O (g)? AH -185 kJ AH-483.7 kJ
8) For which one of the following reactions is AHⓇxn equal to the heat of formation of the product? A) N2(g) + 3H2(g) + 2NH3 (8) B)(1/2)N2(g) + O2(g) → NO2(g) C) 6C(s) + 6H (g) → C6H6 (1) D) P (8) + 4H (g) + Br(g) - PH4Br (1) E) 12C (g) + 11H2(g) + 110 (g) → C6H22011 (8) (8) - PH4Br (1) A 9) The AE of a system that releases 12.4 J of heat and does...
A volume of water was heated to 82.86C and immediately added to 50.31 mL of water at 22:45 °C contained within a coffee cup calorimeter. The final temperature of the mixture was 37,08°C. The final volume of water inside the calorimeter was 94.33 mL. Calculate the following: Note: Heat capacity a. volume of hot water added is 4.18 *Consider sig fig b. masses of hot and cold water (density of water = 1,00 g/mL) c. changes in temperature (AT) of...
1. A volume of water was heated to 83.90 °C and immediately added to 48.11 mL of water at 23.98 °C contained within a coffee cup calorimeter. The final temperature of the mixture was 40.86 °C. The final volume of water inside the calorimeter was 90.45 mL. Assuming that them heat capacity of the solution is 4.18 J/g/°C, calculate the following: a. The volume of hot water added ml b. The mass of hot water (dwater = 1.00 g/mL) c....
1). A sheet of aluminum foil with a mass of 25 g is taken from a room at 25° C and placed in a oven at 200.° C. How much heat does the aluminum absorb? The specific heat of aluminum is 0.90 J/g °C. 2). The value of AH° for the reaction below is -790 kJ. The enthalpy change accompanying the reaction of 0.95 g of S is 28 (s) + 302 (9) — 2503 (9)
Chapter 5 and Chapter 10 Problem solving (please practice the following questions and make sure that you understand the principles behind: you can find Ar from textbook or website I. A 145 g sample of copper metal at 100.0°C is placed into 250.0 g of water at 25.0°C in a calorimeter. When the system reaches thermal equilibrium, the temperature of the water in the calorimeter is 28.8°C. Assume the calorimeter is perfectly insulated. What is the specific heat capacity of...
I'd
like the answers for 30-33
O 41.2 kJ/mol O 5.48 x10 kJ/mol O 86 kJ/mol 48.0 kJ/mol 4.2 Question 30 (2 points) Calculate Ahº for the following reaction, using the given standard enthalpies of formation. 2NO(g) + O2(g) + 2NO2(8) AH°ANO(g)] - 90.25 kJ mol-1 AH®[NO2(g)] = 33.18 kJ mol-1 +57.07 kJ -57.07 kJ O-114.1 kJ +114.1 kJ Question 31 (2 points) The value of AH°for the following reaction is -126 kJ. Determine the amount of heat (in kJ)...
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