The combustion of 0.1584 g of benzoic acid (Ecomb = 26.42 kJ/g) increases the temperature of a bomb  calorimeter by 2.54 °C. A 0.3774 g sample of an unknown compound with molecular formula C10H8N2 is then burned in the same calorimeter, and the temperature increases by 3.08 °C. Calculate the molar  energy of combustion for the unknown compound.

Q: A scientist measures the standard enthalpy change for the following reaction to be -171.6 kJ :…

A: Given;

Q: A bomb calorimeter has a heat capacity of 2.47 kJ/°C. When 0.106 g sample of a compound was burned…

A: By bomb calorimeter, change in internal energy of an isochoric process is determined.

Q: A 1.45 g sample of acetic acid , HC2H3O2 was burned in excess oxygen in a bomb calorimeter. The…

A: We have to predict the heat of combustion.

Q: The complete combustion of salicylic acid releases 21.90 kJ of energy per gram of salicylic acid. In…

A: We have to calculate the energy of combustion per gram of unknown compound.

Q: A 20.0 g sample of ammonium chloride is added to 125 mL of water at 20.0°C in a calorimeter. The…

A: Given: mass of NH4Cl added = 20.0 g. Volume of water = 125 mL. Initial temperature of water = 20.0…

Q: When 100. mL of 1.00 M Ba(NO3)2 solution is mixed with 100. mL of 1.00 M Na₂SO4 (both solutions…

A:

Q: Consider the combustion of carbon monoxide. CO(g) +- O2(g) → CO2(g) i i Determine the value of the…

A: (i) Concept introduction: It is often possible to calculate the enthalpy change for a reaction from…

Q: THERMODYNAMICS: A 1.09 g sample of acetic acid (HC2H302) was burned in excess oxygen in a bomb…

A: Heat absorbed by water  = mass × specific heat capacity × Temperature change  Heat absorbed by…

Q: When 0.525 g of toluene (C7H8) is combusted in a bomb calorimeter, thetemperature of the calorimeter…

A: First law of thermodynamics gives the relationship between the internal energy change (ΔErxn) and…

Q: A 0.452-g sample of pyrene (C16H10) is burned in a bomb calorimeter and the temperature increases…

A: Introduction :- Heat heat evolved in a process (reaction) is equal to sum of heat absorbed by…

Q: THERMODYNAMICS: A 1.61 g sample of acetic acid (HC2H302) was burned in excess oxygen in a bomb…

A:

Q: A bomb calorimeter has a heat capacity of 6.47 kJ/K. When a 0.107-g sample of ethylene (C2H4) was…

A: Heat of combustion is the heat produced when a molecule is combusted in air and produces water and…

Q: 1.435 g of naphthalene (C10H8) is burned in a bomb calorimeter. There is exactly 2000.0 g of water…

A:

Q: The combustion of 0.1583 g benzoic acid increases the temperature of a bomb calorimeter by 2.52°C.…

A:

Q: THERMODYNAMICS: A 1.98 g sample of acetic acid (HC2H3O2) was burned in excess oxygen in a bomb…

A:

Q: Calculate the enthalpy change of the exothermic reaction

A:

Q: When 0.7521 g of benzoic acid was burned in a calorimeter containing 1,000. g of water, a…

A:

Q: 0.190 M in HCHO₂ (K₁ = 1.8 x 10-4) and 0.225 M in HC2H3O2 (K₁ = 1.8 x 10-5) Express your answer to…

A: Since you have asked multiple question, we will answer the first question for you. If you want any…

Q: An electrical heater adds 21.9 kJ of heat to a constant-volume calorimeter. The temperature of the…

A:

Q: A 0.1512 g sample of an organic compound with a molar mass of 245.2 g/mol was burned in the bomb…

A: Given data contains, Mass of the sample is 0.1512 g. Molar mass of the sample is 245.2 g/mol. Heat…

Q: A 0.1694 g sample of benzopenone(C13H10O) is burned in a bomb calorimeter that has a heat capacity…

A:

Q: When 1.550 g of a particular flammable liquid is burned in a bomb calorimeter, the temperature rises…

A: We have to calculate the value of ∆Erxn

Q: 3. In a bomb calorimeter, 0.562 g of graphite is kept in excess oxygen at 298 k. During the…

A: Answer:When graphite is burned in excess of oxygen it forms CO2 and huge amount of energy gets…

Q: THERMODYNAMICS: A 1.79 g sample of acetic acid (HC2H302) was burned in excess oxygen in a bomb…

A:

Q: bomb calorimeter has a heat capacity of 2.47 kJ/K. When a 0.111-g sample of ethylene (C2H4) was…

A: Calculate the heat energy gained by calorimeter.

Q: An electrical heater adds 23.7 kJ of heat to a constant - volume calorimeter. The temperature of the…

A: The objective of the question is to calculate the molar energy of combustion of methanol using the…

Q: The combustion of 0.1595 g benzoic acid increases the temperature of a bomb calorimeter by 2.52°C.…

A: Given data is as follows: Mass of benzoic acid is 0.1595 g Energy released by benzoic acid is 26.42…

Q: 6. When a 1.0 g sample of acetylene was burned in a bomb calorimeter, the temperature increased by…

A: The number of moles of acetylene is calculated as shown below where m is the given mass of acetylene…

Q: THERMODYNAMICS: A 1.81 g sample of acetic acid (HC2H302) was burned in excess oxygen in a bomb…

A:

Q: 073 mol sample of an organic compound was burned in oxygen in a bomb eter. The temperature of the…

A:

Q: A 2.011 g sample of an organic substance (MM = 342.3 g/mol) is burned in a bomb calorimeter, the…

A: given mass = 2.011 h molar mass = 342.3 g/mol initial temperature = 24.14°C final temperature =…

Q: se constant-volume calorimetry to determine energy change. D.452-g sample of pyrene (C16H10) is…

A:

Q: side t level pressu You sure d. e. Using the assumption that 1gram of water is 1mL of volume, what…

A: d.) First we need to calculate the mass of O2 from given weight , then we can calculate volume .…

Q: An electrical heater adds 21.7 kJ of heat to a constant-volume calorimeter. The temperature of the…

A: When 21.7 kj of heat is added temperature rise is of 4.49°C.When 1.75 g methanol burnt temperature…

Q: The combustion of 0.1564 g benzoic acid increases the temperature of a bomb calorimeter by 2.53°C.…

A: Since the energy released by the combustion of benzoic acid is 26.42 KJ/g, therefore the energy…

Q: A 50.0 mL solution of 1.2 M HCl at 24.1oC is mixed with 50.0 mL of 1.3 M NaOH, also at 24.1oC, in a…

A: HCl = 50.0 mL x 1.2 M = 60 mmol = 0.060 mol NaOH = 50.0 m X 1.3 M = 65 mmol = 0.065 mol here HCl and…

Q: Determine the enthalpy of reaction for HCl(g) + NaNO₂(s) → HNO₂(l) + NaCl(s) 2NaCl(s) + H₂O(l) →…

A:

Q: 25.0 mL of 1.00 M HCl at 24.3°C react with 25.0 mL 1.00 M NAOH in a styrofoam calorimeter whose…

A: Using the energy conservation , in calorimeter  heat given in the reaction of neutralisation =heat…

Q: In a constant-volume calorimeter containing 1500.0 mL of water, a 143.9-gram piece of iron (Fe) rod…

A: Given: Volume of water = 1500.0 mL  Mass of iron = 143.9 g. Initial temperature of water = 17.11 oC…

Q: 10.00 mL of 1.00 M HCl solution i mperature rises from 22.45 °C to 23 same as that of 125 g of…

A:

Q: A 0.600 g sample of tristearin (C57H11O6), a common fat, is combusted in a bomb calorimeter…

A: Given: Mass of C57H11O6 = 0.600 g. Mass of water = 750.0 g. Heat capacity of calorimeter = 326 J/K.…

Q: Use constant-volume calorimetry to determine energy change. A 0.376-g sample of decanoic acid…

A: Given, The combustion reaction : C10H20O2(s) + 14O2(g) → 10 CO2(g) + 10 H2O(I)  mass of decanoic…