A scientist measures the standard enthalpy change for the following reaction to be -129.8 kJ : 4HCl(g) + O2(g)------->2H2O(g) + 2 Cl2(g) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of H2O(g) is ___________ kJ/mol.

Q: The combustion of diborane, B2H6B2H6 at constant pressure, proceeds according to the equation…

A: The given chemical reaction is as follows: B2H6(g) + 3O2(g) → B2O3(s) + 3H2O(l)…

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: When 0.5571 g of biphenyl (C12H10) undergoes combustion in a bomb calorimeter, the temperature rises…

A: Given:   Heat capacity =  5.861 kJ∘C−1. Given mass of bilhenyl =  0.5571 gm Molecular mass of…

Q: Chemistry 1.A student performed a super-fun lab and gathered some great data to find the heat of…

A: #1: #(A): Here the heat released by the combustion of 1,2-ethandiol is absorbed by water and…

Q: When 0.514 g of biphenyl (C12H10) undergoes combustion in a bomb calorimeter, the temperature rises…

A: The specific heat can be defined as the amount of heat per unit mass that is needed to raise the…

Q: In this virtual lab, calorimetry will be performed to determine the heat 100 capacity, Ceal , of a…

A: Note : as per guidelines I am solving only first three subparts, as you have not mentioned anything.…

Q: What process corresponds to the-88 kJ enthalpy change?

A: When a reaction gets completed in multiple steps, the enthalpy changes involved will be multiple…

Q: In this experiment you will place a sample of your salt in water in a constant pressure calorimeter…

A: For the given reaction, the heat lost by the dissociation of salt is equal to the heat gained by…

Q: In the laboratory a student burns a 1.13-g sample of dimethyl oxalate (C,H,04) in a bomb calorimeter…

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Q: crose, C2HO1, is common table sugar. The enthalpy change at 25°C and 1 atm for the complete burning…

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Q: Many cigarette lighters contain liquid butane, C.H10(1): 2C.H10(1) + 130z(g) = 8CO2(g)+10H2O(1)…

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Q: Part A) Use standard enthalpies of formation to calculate the standard change in enthalpy for the…

A: The standard enthalpy of formation is the enthalpy of formation measured under the standard…

Q: The combination of titanium with oxygen produces titanium dioxide Ti(s)+ O2(g) —> TiO2 (s) When…

A: Given Reaction Ti(s) + O2(g) → TiO2(s)Mass of Titanium combused = 1.44 gInitial temperature = Ti =…

Q: A bomb calorimeter, or a constant volume calorimeter, is a device often used to determine the heat…

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Q: Q3. a) When 0.610 g of titanium (Ti) is combusted in a bomb calorimeter, the temperature of the…

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Q: 6. A 40.00 g sample of water at 22.00°C is put in a calorimeter. After 60.00 g of water at 65.00°C…

A: (6) Given - Mass of water at 22.00°C = 40.00 g  Mass of water at 65.00°C = 60.00 g  Final…

Q: [References) In a coffee-cup calorimeter, 110.0 mL of 1.3 M NAOH and 110.0 mL of 1.3 M HCl are…

A: Total volume of the solution = 110.0 mL + 110.0 mL = 220mL Density of the solution = 1.0 g/cm3 =…

Q: A 1.000-gram sample of ethanol, C2H5OH, was burned in a bomb calorimeter whose heat capacity had…

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Q: Chemist place 348 mg of 2-propanol (C:Hs0) and a sufficient amount of H2SO4 into a bomb calorimeter…

A: A numerical problem based on enthalpy concept, which is to be accomplished.

Q: A piece of metal weighing 59.047 g was heated to 100.0 °C and then put it into 100.0 mL of water…

A: It is given that a piece of metal was initially heated to 100°C and was immersed in 100 mL and water…

Q: When 1.553 g of liquid hexane (C6H14C6H14) undergoes combustion in a bomb calorimeter, the…

A: The reaction taking place can be written as (C6H14 = hexane), => C6H14 + O2 -------> CO2 + H2O…

Q: In a coffee-cup calorimeter, 110.0 mL of 1.3 M NAOH and 110.0 mL of 1.3 M HCl are mixed. Both…

A: NaOH + HCl ----.> NaCl + H2O This is a strong acid and strong base reaction (neutralization to…

Q: A scientist measures the standard enthalpy change for the following reaction to be -184.6 kJ :…

A: Applying standard condition of change in entropy of reaction.

Q: Question 17 To determine the specific heat capacity of an unknown metal, jiheon placed 500 g of the…

A:

Q: In this virtual lab, calorimetry will be performed to determine the heat 100 capacity, Ceal , of a…

A: Since the iron metal is at a higher temperature, it will release heat, whereas ethanol and…

Q: 2) If 1mol of gaseous carbon dioxide and 2mol of gaseous sulfur dioxide are produced when 1mol of…

A: Given,  1 mol of gaseous carbon dioxide react with 2 mole of gaseous sulfur dioxide to form 1mole of…

Q: The sugar arabinose, C5 H10 O5 , is burned completely in oxygen in a calorimeter. C5 H10 O5 (8) +…

A: Given information: mass of C5H10O5 = 0.528 g heat capacity (C)  = 15.0 KJ/oC Temperature  = 20.0oC…

Q: A scientist measures the standard enthalpy change for the following reaction to be -349.0 kJ :…

A: Calculation as shown below

Q: Consider the exothermic reaction C,Hs(g) + 1002(9)→3CO2(g)+4H2O(g) Calculate the standard heat of…

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Q: The efficient design of chemical plants depends on the designer’s ability to access and use the heat…

A: The reaction given is  N2(g) + 3H2(g) -----> 2 NH3(g)                        ΔH = -92.22 KJ/mol

Q: In a neutralization reaction in a well-insulated calorimeter, 112.9 g of 1.2915 M NAOH were added to…

A: Given: Mass of NaOH solution = 112.9 g. Mass of HCl solution = 129.1 g. concentration of NaOH =…

Q: I need help on question 1

A: The process is to raise the temperature of 35.0 g of water from 30.00C to 950C where the specific…

Q: Calculate the enthalpy, AH for this reaction in kJ, given the data below to ONE DECIMAL PLACE. DO…

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Q: RMODYNAMICS: The combustion of 1.00 mol of glucose (C6H1206) liberates 2820 kJ of heat If 1.75 g of…

A: Mass of water = 957 g Mass of glucose = 1.75 g Molar mass of glucose = 180g/mol Change in…

Q: A bomb calorimeter, or a constant volume calorimeter, is a device often used to determine the heat…

A:

Q: n engineering student wants to study the heat transfer between a 50 g of a heated block of iron (cFe…

A: when  two substance at different temperature is connect heat will always flow from body having…

Q: The combustion of ethanol, C2H5OH@ to form carbon dioxide gas and water. What is the enthalpy of…

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Q: standard enthalpy change

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Q: Determine the specific heat capacity of an alloy that requires 59.3 kJ to raise the temperature of…

A: Given, Heat required = 59.3kJ. Mass of alloy = 150.0g. Initial temperature = 298K. Final temperature…

Q: In this experiment you will place a sample of your salt in water in a constant pressure calorimeter.…

A: Here we need to calculate number of moles of SrCl2. Number of moles = mass / molar mass

Q: When a 4.31 g sample of liquid octane (C8H18) is burned in a bomb calorimeter, the temperature of…

A: Gdhh

Q: Methylhydrazine (CH6N2) is commonly used as a liquid rocket fuel. The combustion of methylhydrazine…

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Q: Instant cold packs can be made from ammonium nitrate by mixing/reacting it with water (reaction…

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Q: In an experiment, a 1.1250 g sample of β-D-fructose (C6H12O6) is burned completely in a bomb…

A: Answer: -2709.88 KJ/mol

Q: When 51.4g of a metal alloy at 78.5°C are added to 112g of water at 23.8°C in a coffee - Cup…

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Q: A bomb calorimeter, or a constant volume calorimeter, is a device often used to determine the heat…

A: qH2O  = msΔT  m  = mass of water  = 1.068*103  s = heat capacity of water = 4.184Jg-1°C-1   ΔT =…

Q: The enthalpy of combustion of methane gas, CH4(g), is about -9.0*102 kJ/mol. When methane gas reacts…

A: Combustion is the process of reaction of a compound with excess of oxygen gas. The products of…

Q: A scientist measures the standard enthalpy change for the following reaction to be - 770.6 kJ:…

A: Thermodynamics is branch of chemistry in which we deal with amount of heat evolved or absorbed by…