Octane (C8H18) is a component of gasoline that burns according to the following equation:  C8H18 (l) + 25/2 O2 (g) ------> 8 CO2 (g) + 9 H2O (g) ΔHorxn = - 5074.1 kJ What mass of octane (in g) is required to produce 5830 kJ of heat?

Q: Consider the chemical equation 2 A + 3 B ---> 4 C + D The reaction enthalpy is 705 kJ How many…

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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: When one mole of C6H6 is burned, 3.27 MJ of heat is produced. When the heat from burning 5.27 g is…

A: Given: 3.27 MJ = 3270000 J molar mass of C6H6 = 78.11 gm/mol that mean 78.11 gm C6H6 = 1 mole then…

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: Calcium hydroxide, which reacts with carbon dioxide to form calcium carbonate, was used by the…

A: Given, moles of CaCO3 formed = 3.8 mol

Q: Given that the molar enthalpy of combustion for propan-1-ol, C3H7OH(l), is –2008.6 kJ/mol,  what is…

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Q: Question 17 of 22 Submit In the following reaction, how much heat (in kJ) is released when 3.21…

A: Given combustion reaction: CH4 (g) + 2O2 (g)  ------> CO2 (g)  + 2H2O(g)  enthalpy change of the…

Q: A gaseous fuel mixture contains 23.3% methane (CH4), 39.9% ethane (C2H6) and the rest propane (C3H8)…

A: Step 1: Determine total moles of gas in the tank Given             Volume, V = 1.60L…

Q: How much heat is produced by the complete combustion of 264 gg of CH4CH4?

A: Given:CH4g+2O2g→CO2g+2 H2Og∆Hrxn°=-802.3 kJ

Q: 3. When 1.010 g sucrose (C12H22011) undergoes combustion in a bomb calorimeter, the temperature…

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Q: Calculate the quantity of heat released when 4.00 g of CH4(g)are burned in excess oxygen according…

A: Methane react with oxygen and produced one mole of carbon dioxide and two mole of water

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

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Q: A new metal alloy was created in the laboratory for use in applications where a strong but light…

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Q: The reaction 3H2(g) + N2(g) → 2NH3(g) has an enthalpy of reaction of -92.6 kJ/mol. If 2 g of…

A: According to the given balanced chemical equation, one mole of nitrogen reacts to produce 92.6 kJ of…

Q: An important flavor component of vanilla extract is vanillin (C8H8O3, molar mass = 152.15 g/mol).…

A: Using conservation of heat energy principle, mass of vanillin combusted can be calculated.

Q: If the energy change for a system is equal to the mass of the substance x the change in temperature…

A: Specific heat is the amount of heat needed for one gram of a substance to increase its temperature…

Q: A 51.46 g piece of cadmium metal initially at 82.15 oC is placed in a calorimeter with 50.00 mL of…

A: Let the final temperature be x°C. From calorimetry, Heat loss by cadmium = Heat gain by water Heat…

Q: A generic solid, X, has a molar mass of 61.6 g/mol. In a constant-pressure calorimeter, 18.3 g of X…

A: Heat absorbed/ released by a solution can be calculated by usingthe expression:Q = m.Cp.∆T where, m=…

Q: We allow 73 g of oxygen to react with 85 g of ethane.  The reaction is shown below.  Since the heat…

A: Given - Balanced thermodynamical Reaction -  C2H6 (g) + 7/2 O2 (g) → 2 CO2 (g) + 3 H2O (g) ,…

Q: 8. The equation for the combustion of methane, CH4 (the main component in natural gas) is shown…

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Q: What is the q (heat) for 140.2 g of PCl3 decomposing to form chlorine gas and elemental phosphorus?…

A: Decomposition reaction of PCl3 is ,∆H°rxn =1207 kJMass of PCl3 = 140.2 g Molar mass of PCl3 = 137.32…

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

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Q: In the following reaction, how much heat is generated when 3.21moles of CH4 are burned

A: The negative sign before ∆H0 shows that heat is released from the reaction. Observing the given…

Q: Propane, C3H8, reacts with oxygen to produce carbon dioxide, water and heat. C3H8 + 5 O2 → 3 CO2 + 4…

A: Number of moles    = Given Mass/ Molecular mass

Q: Hydrazine, N2H4, is a liquid used as a rocket fuel. It reacts with oxygen to yield  nitrogen gas and…

A: Molar mass of hydrazine (N2H4) = 32.045 g/mol

Q: 2 Calculate the temperature reached when 100 g of water at 18.2°C absorbs 9.45 kJ of heat energy.…

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Q: Calculate the heat exchanged when 32.0 g oxygen reacts with 16.0 g methane:  CH4(g) + 3/2 O2(g) →…

A: Ans -600kj

Q: A 2.62E1 g sample of aluminum at 1.008E2 °C is added to 1.002E2 g of water at 2.22E1 °C in a…

A: For a chemical reaction or physical process to occur a certain amount of energy should be furnished…

Q: mass of carbon dioxide

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Q: How much heat, in kilojoules, is released when 12.4  g   H2(g)  reacts with plenty of  O2(g)  to…

A: Given thermochemical equation is  2 H2 (g)  + O2 (g)   -->  2 H2O (g)…

Q: Potassium nitrate, KNO,, has a molar mass of 101.1 g/mol. In a constant-pressure calorimeter, 47.3 g…

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Q: 1. In an experiment to determine the Specific Heat of Nickel, a 66.0 g sample of Nickel metal is…

A: Answer :-  The specific heat of Nickel determined by the experiment = 0.544 J/g.°C…

Q: The addition of 3.15 g of Ba(OH)₂ 8H₂O to a solution of 1.52 g of NH SCN in 100 g of water in a…

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Q: A propane BBQ combusts propane as shown below: C3H8 (g) + 5 O2 (g) → 3 CO2 (g) + 4 H₂O (1) ArH=-2220…

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Q: Consider the reaction of hydrogen with sulfur to form hydrogen sulfide: 8H₂ (g) + S8 (s) → 8H₂S(g),…

A: The difference in the enthalpy of the products and reactants is known as the enthalpy change of the…

Q: The highly exothermic thermite reaction, in which aluminum reduces iron(III) oxide to elemental…

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Q: How much heat, in kilojoules, is released when 16.4 gg H2(g)H2(g) reacts with plenty of O2(g)O2(g)…

A: The objective of the question is to calculate the amount of heat released when 16.4 g of H2 reacts…

Q: 61. Consider the thermochemical equation for the combustion of acetone (C3H,O), the main ingredient…

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Q: how much heat (in kJ) is released

A: Given :- CH4(g) + 2O2(g) ---> CO2(g) + 2H2O(g).     ∆H°= -802 kJ/mol  Number of moles of CH4 =…

Q: Titanium reacts with iodine to form titanium(III) iodide, emitting heat:2 Ti(s) + 3 I2(g)…

A: From the given chemical equation and data it is clear that  839 KJ energy is released from two moles…