How much heat in kilojoules is evolved or absorbed in each of the following reactions?   Burning of 15.5 g of propane: C3H8(g)+5O2(g)→3CO2(g)+4H2O(l) ΔH∘=−2220 kJ   Reaction of 4.88 g of barium hydroxide octahydrate with ammonium chloride: Ba(OH)2⋅8H2O(s)+2NH4Cl(s)→BaCl2(aq)+2NH3(aq)+10H2O(l) ΔH∘=+80.3 kJ

Q: Consider the following thermochemical reaction: 6 HCl(g) + 2 BCl3(g)-->B2H6(g) + 6Cl2(g) ΔHrxn =…

A: Given :-  6 HCl(g) + 2 BCl3(g)-->B2H6(g) + 6Cl2(g) ΔHrxn = +755.4 kJ  To calculate :-  mass of…

Q: How much heat evolves from burning 16.4 g of sulfur, Sg, in air? g S8(s) + 8 O2(g) → 8 SO2(g) AH°r=…

A:

Q: From a consideration of the reaction 2NO(g) + O2(g)  2NO2(g) H = 114.1 kJ if 2.00 * 10^2 g of…

A: given mass of NO2 = 2*102 g

Q: at, how many gram of C12H26 wo

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Q: 4.78 x 10 kJ E) 1,040 kJ 51.Methanol (CH,OH) burns according to the equation 2CH,OH(I) +…

A: The given reaction is,

Q: A generic solid, X, has a molar mass of 61.8 g/mol. In a constant-pressure calorimeter, 18.6 g of X…

A: Answer:- This question is answered by using the simple concept of calorimetry which states heat lost…

Q: 2. Use the following reactions: CIO(g) + O3(g) → CI (g) + 202 (g) AHxn = -29.90 kJ 203(g) → 302…

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

Q: How much heat is absorbed or released when 40.00 g of NH3(g) reacts in the presence of excess O2(g)…

A: According to the question, The mass of the ammonia gas is given by =40.00 g The molar mass of the…

Q: רPi How much heat will be released (AH) if 0.2037 mol of NH3 are mixed with 0.20 mol of O2 in the…

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Q: How much heat is absorbed/released when 25.00 g of NH3(g) reacts in the presence of excess O2 (g) to…

A: Heat is released and absorbed during a reaction.

Q: Pentaborane, B5H9, was once studied as a potential rocket fuel. Calculate the heat given off  when 1…

A: 2B5H9 + 12O2 ------> 5B2O3 + 9H20  Enthalpy of reaction  = Sum of enthalpies of products-sum of…

Q: Consider the following reaction: 2 PbS (s) + 3 O2 (g) → 2 PbO (s) + 2 SO2 (g) AHxn = -827.4 kJ What…

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Q: Given the following reactions N2 (g) + O2 (g) → 2NO (g) 2NO(g) + O2(g) → 2N (g) the enthalpy of…

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Q: 4 Fe(s) + 3 O2(g) → 2 Fe2O3(s), ΔH = -1652 kJ (c) How much heat is released when 1.21 g iron is…

A: Given -  Heat released in the given reaction = 1652 kJ Mass of iron = 1.21 g

Q: Iron can be converted to Fe₂O₃ according to the reaction below. How much heat (in kJ) is required to…

A: The branch of chemistry that deals with the structure, properties and the reaction of the organic…

Q: In a coffee cup calorimeter, a student adds 2.50 g of calcium, followed by addition of 50.0 mL of…

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Q: Nitromethane (CH3NO2) burns in air to produce significant amounts of heat. 4 CH3NO2(l) + 3…

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Q: A chemist measures the energy change AH during the following reaction: C3H8(g)+50₂(g) - ► 3 CO₂(g) +…

A: we have to calculate the heat released or absorbed in the given reaction

Q: 4Al(s) + 3O2 (g) --> 2 Al2O3 (s) Δ H = -3351 kJ     How much heat will be released when 85 g of Al…

A: Given thermochemical reaction equation is 4Al(s) + 3O2 (g) --> 2 Al2O3 (s) Δ H = -3351 kJ…

Q: In a coffee cup calorimeter, a student adds 2.50 g of calcium, followed by addition of 50.0 mL of…

A: Let us take the initial temperature of all components are at room temperature, i.e., 250C (298 K)…

Q: 1. Using the following reactions, calculate the heat of the first reaction. Note: all three…

A: 4NH3 (g) + 5O2(g)  ---->   4NO(g)  +  6H2O(g)    ΔH1 = ?  ------(1) N2(g)  +   O2(g)  ---->…

Q: How much heat is evolved when 453.5 g of ammonia (NH3) is produced according to the following…

A: Given Reaction is - N2 (g) + 3H2 (g) → 2NH3 (g)                  ΔH= -91.8 kJ

Q: Consider the combustion of butane: 2C4​H10​(g)+13O2​(g)-->8CO2​(g)+10H2​O(l), ΔHrxn = −2878 kJ/mol…

A: The enthalpy of combustion of a substance indicates the enthalpy change produced as a result of the…

Q: C3H8 (g) + 5 O2(g) → 3 CO2 (g) + 4 H2O(g)   ΔH = -2044 kJ For the above reaction, if 1.51 moles of…

A: Given the chemical reaction as follows,C3H8 (g) +5O2(g) → 3 CO2 (g) +4H2O(g)   ; ΔH = -2044 kJwe are…

Q: If the reaction of 2.5 g of Ca transfers 487 J of heat to a solution in a calorimeter (i.e. qsoln =…

A: Given : Mass of Ca reacting = 2.5 g And amount of heat transferred to the solution = 487 J Atomic…

Q: A generic solid, X, has a molar mass of 75.0 g/mol. In a constant-pressure calorimeter, 18.8 g of X…

A: Mass of solid = 18.8 g molar mass of solid = 75.0 g/mol mass of water =303 g temperature (T1) =…

Q: How much heat is produced by the complete reaction of 6.81 kg of nitromethane? Nitromethane (CH3NO2)…

A: According to the given balanced chemical reaction,

Q: 59. In a coffee-cup calorimeter, 50.0 mL of 0.100 M AgNO3 and 50.0 mL of 0.100 M HCl are mixed to…

A:

Q: Glucose (C6H12O6) can be converted by an anaerobic bacteria to acetic acid, carbon dioxide, and…

A: To solve this problem we have to know about the heat of reaction .

Q: Liquid hydrogen peroxide is an oxidizing agent in many rocket fuel mixtures because it releases…

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Q: The reaction for the combustion of propane is…

A: In the given question, a reaction is given in which we have to determine the amount of heat released…

Q: Consider the following reaction: N2(g)+O2(g)⟶2NO(g)                                ΔH∘=182.6kJ How…

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Q: Deterioration of buildings, bridges, and other structuresthrough the rusting of iron costs millions…

A: In a balanced equation, the number of atoms on both sides of the equation should be the same. This…

Q: heat for the combustion of sucrose (table sugar, C12H22O11) is -5,647 kJ for

A: Number of moles = mass/ molar mass  Number of moles of O2 = mass of O2/molar mass of O2

Q: Nitromethane (CH3NO2), sometimes used as a fuel in drag racers, burns according to the following…

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Q: How many grams of iron (Fe) are formed when 2.28 x 10^3 kJ of heat evolves from the reaction?…

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Q: How much heat in kilojoules is evolved or absorbed in the reaction of 2.70 g of Na with H2O?…

A: The objective of this question is to calculate the amount of heat evolved or absorbed in the…

Q: Consider the following reaction:   2 HCl(aq) + Ba(OH)2(aq)  ⟶⟶ BaCl2(aq) + 2 H2O(l)          ΔH=…

A: When the acid and base that is one equivalent to both of the components undergoes neutralization…

Q: Use the table below of enthalpies of formation to determine the heat of the following reaction.…

A: The details solution for this is provided below in attach image.

Q: How much heat in kilojoules is evolved or absorbed in the reaction of 1.75 g of Na with H2O?…

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Q: How much heat (in kilojoules) is evolved or absorbed in the reaction of 2.90 gg of Fe2O3Fe2O3 with…

A:

Q: 4 Fe(s) + 3 O2(g) → 2 Fe2O3(s), ΔH = -1652 kJ (a) How much heat is released when 4.47 mol iron is…

A: Since, The standard enthalpy of the formation is defined as change of enthalpy of 1 mol of the…

Q: The oxidation of glucose, C6H12O6(s), is described by the following thermochemical equation:…

A:

Q: A 1.200 g sample of ZnCO3 (s) dissolved in 40.0 mL of a dilute HCl solution (density = 1.10 g/mL) in…

A: The reactants are zinc carbonate and dilute hydrochloric acid.

Q: When methanol, CH,OH, is burned in the presence of oxygen gas, O,, a large amount of heat energy is…

A: Given information:                      CH3OH(g) + 32O2(g)  → CO2 (g)  + 2H2O(l)        ∆H = -764 kJ