When 0.746 g of benzoic acid, C7H6O2 (122.12 g/mol) is burned in a bomb calorimeter, thetemperature rises from 21.04 °C to 23.90 °C. If AE for the reaction is -3226 kJ/mol, what isthe calorimeter constant of the calorimeter in kJ/°C? Please give your answer to twodecimal places.Type your answer...

Given: massC7H6O2=0.746g;MC7H6O2=122.12g/mol;Ti=21.04°C;Tf=23.90°CΔE=−3226kJ/molStep 1:…

Answered: When 0.746 g of benzoic acid, C7H6O2…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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[References] In a coffee-cup calorimeter, 100.0 mL of 1.3 M NaOH and 100.0 mL of 1.3 M HCl are mixed. Both solutions were originally at 24.3°C. After the reaction, the final temperature is 33.0°C. Assuming that all the solutions have a density of 1.0 g/cm³ and a specific heat capacity of 4.18 J/°C-g. calculate the enthalpy change for the neutralization of HCl by NaOH. Assume that no heat is lost to the surroundings or to the calorimeter. kJ/mol AH = Submit Answer Try Another Version 1 item attempt remaining 4 C C A 6 T
8. A 1.107-g sample of benzoic acid (HC;H;O2) is burned in an excess of O:(g) in a bomb calorimeter, which is immersed in water. The reaction produces heat that causes the temperature of the water and bomb to increase from 24.96 to 29.20°C. (a) If the heat capacity of the calorimeter is 6.90 kJ/ºC, how many kilojoules of heat are produced by the combustion of 1.107 g of benzoic acid? (b) Calculate the heat of combustion per gram of benzoic acid and the molar enthalpy of combustion of benzoic acid.
5) Mothballs are composed primarily of the hydrocarbon naphthalene (C₁0H8). When 1.025 g of naphthalene burns in a bomb calorimeter, the temperature rises from 24.25 °C to 32.33 °C. What is the heat for the combustion of naphthalene in kJ/mol? The heat capacity if the bomb calorimeter was determined to be 5.11 kJ/°C.
When 1.091 grams of sucrose (Molar mass 342.3 g/mol) is burned in a bomb calorimeter, the temperature of the calorimeter increases from 22.41°C to 26.63°C. If the heat capacity of the calorimeter is 4.900 kJ/°C, what is the heat of combustion of sucrose, in kJ/mol?
A) When 1.911 grams of sucrose (Molar mass 342.3 g/mol) is burned in a bomb calorimeter, the temperature of the calorimeter increases from 22.410 °C to 26.630 °C. If the heat capacity of the calorimeter is 4.900 kJ/ °C, what is the heat of combustion of sucrose, in kJ/mol? And B) A 90.0 g piece of metal, initially at 98.60 °C, is placed into 120.0 g of water initially at 24.30 °C. If the final temperature of the water is 34.00 °C, what is the specific heat of the metal? (The specific heat of water is 4.184 J/g･ °C).
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The heat of combustion (AH) for an unknown hydrocarbon is -8.21 kJ/mol. If 0.344 mol of the hydrocarbon is burned in a bomb calorimeter, what is the change in temperature (°C) of the calorimeter? The heat capacity of the bomb calorimeter is 1.12 kJ/°C.
100.0 mL of cold water at 20.5 oC was poured into a styrofoam coffee cup calorimeter. After adding 100.0 mL of hot water at 30.5 oC and mixing it thoroughly, the temperature of the mixture was found to 24.7 oC. Find the heat capacity of the calorimeter. [Specific heat capacity of water is 4.184 J/goC. Assume density of water is 1.0 g/mL at both temperatures.]
A 1.261 g sample of a new organic material is combusted in a bomb calorimeter. The temperature of the calorimeter and its contents increase from 25.39 °C to 28.44 °C. The heat capacity (calorimeter constant) of the calorimeter is 27.69 kJ/ °C, what is the heat of combustion per gram of the material? heat of combustion: kJ/g
THERMODYNAMICS: A 1.4 g sample of acetic acid (HC2H302) was burned in excess oxygen in a bomb calorimeter. The calorimeter, which alone had a heat capacity of 2.67 kJ/°c, contained 7 g of water. The temperature of the calorimeter and its contents increased from 22.59°C to 27.95°c. What is AH (in kJ) for the combustion per 1.00 mol of acetic acid? MW of acetic acid is 60 g/mol. (Round off the final answer to ONE decimal place. Do not include the unit.)
THERMODYNAMICS: A 1.71 g sample of acetic acid (HC2H302) was burned in excess oxygen in a bomb calorimeter. The calorimeter, which alone had a heat capacity of 2.67 kJ/°C, contained 7 g of water. The temperature of the calorimeter and its contents increased from 23.09°C to 27.95°C. What is AH (in kJ) for the combustion per 1.00 mol of acetic acid? MW of acetic acid is 60 g/mol. (Round off the final answer to ONE decimal place. Do not include the unit.)
The following thermochemical equation is for the reaction of hydrogen chloride(g) with ammonia(g) to form ammonium chloride(s). HCl(g) + NH3(g) --> NH4Cl(s) ΔH = -176kJ How many grams of HCl(g) would have to react to produce 45.2 kJ of energy? _______ grams

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