How many grams of MgO produced during an enthalpy change of -231 kJ ? are

Q: 1. Calculate the amount of heat released during the combustion of 100 g of C3H60. (1 mole of CyHg0…

A: Given: Mass of C3H6O combusted = 100 g. And 1 mole of C3H6O releases 1790 KJ amount of heat on…

Q: What is the enthalpy of formation (AH°;) of NaHCO3(s) from its constituent elements?

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Q: Which number represents the enthalpy change in the reaction? 2 Reaction Coordinate 90 Potential…

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Q: 3) what mass of mathane must be burned in erder to liberate 12,773 kJ of heat ? ()

A: NOTE : Since it is not clearly mentioned whether the heat released is 12.774 KJ or 12773 KJ, hence…

Q: Calculate the heat (in kJ) associated with 246 g of white phosphorus burning in air according to the…

A: Answer: This is the combustion reaction of phosphorus and it is an exothermic reaction.

Q: Which number represents the enthalpy change in the reaction? Reaction Coordinate Potential Energy

A: The potential energy graph explains the energy change that occurs during a chemical reaction. This…

Q: Calculate enthalpy changes for the following: a. 0.041 g of sulfur (rhombic) burns, forming SO2 (g)…

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Q: How much heat is produced by burning 4.00 moles of acetylene under standard state conditions?

A: Moles of acetylene= 4

Q: How much energy will be needed or produced if 5.75 g of magnesium is used in the reaction: 2Mg) + O2…

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Q: What is the enthalpy change of the reaction:

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Q: How much heat (in kJ) is absorbed in the process of making 0.877 mol of CF, from the following…

A: The given chemical reaction is as follows,C(s)+2F2(g)→CF4(g)       ∆H° =141.3 kJmolnumber of moles…

Q: A 4.81 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…

A: Solution :        The heat of dissolution is defined as an enthalpy change related to the…

Q: Calculate AH (kJ/mol), enthalpy of formation, for the hypothetical CaF(s) given:

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Q: How much heat (in kilocalories) is evolved or absorbed in the reaction of 1.00 g of Na with H2O? Is…

A: Given: Mass of Na is 1.00g. The reaction of Na with water can be represented as 2Na(s) +…

Q: Write the chemical equation for the enthalpy of formation reaction for BaCO3 (s).

A: The formation of compounds from its atoms in their stable sates at standard pressure and temperature…

Q: How many grams of ammonium chloride were formed if the reaction released 518 kJ of heat

A: Given :-  N2(g) + 4H2(g) + Cl2(g) → 2NH4Cl                                               ∆Hrxn =…

Q: Determine the enthalpy of formation for NO given the balanced equation and the enthalpy of formation…

A: Enthalpy of Formation: The amount of heat release are observed when 1 mole of product its form its…

Q: For a given sample of CH3OH, the enthalpy change during the reaction is 82.5 kJ. What mass of meth…

A: Given :- ∆H = 82.5 kJ  To calculate :- mass of CH4 (in g)  Molar mass of CH4 = 16.0 g/mol

Q: Using the enthalpy change of -1594 kJ, what is the amount of heat absorbed or released when 1.10 L…

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Q: Which of the following terms accurately describes the energy associated with the process: Li(g) → Li…

A: The reaction is associated with various types of energies like ionization energy, electron gain…

Q: Given that CaO(s) + H2O(l) → Ca(OH)2(s), = –64.8 kJ/mol, how many moles of CaO must react in order…

A: All things are provided in handwritten solution

Q: Calculate the heat (in kJ) associated with 481 g of white phosphorus burning in air according to the…

A: The balanced reaction taking place is given as Given : Mass of P4 reacting = 481 g.

Q: How much energy (kJ) is released when 2.30 kg of gold is cooled from 88°C to 22°C?

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Q: enthalpy of formation of

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Q: When hydrogen and oxygen are burned to produce water, heat is produced at the rate of 58 kcal/mole…

A: Given: Heat produced per mole of water = 58 Kcal/mol of water. And 1 mole of water contains = 6.02 ×…

Q: Determine the total heat absorbed by the reaction, in kJ, if 2.50 g of O2 is required to fully…

A: Heat absorbed by the reaction = 89.4kJ.mol The heat of Formation of SO3(g) = -204.1kJ/mol

Q: If 100.0 g of iron (s.h. =0.446) absorbs 12.5 kJ, how much will its temperature increase?

A: Given: mass of iron (m) = 100.0 g specific heat of iron (C) = 0.446 J/goC Heat absorbed (q) = 12.5…

Q: 45. How much heat is produced by burning 4.00 moles of acetylene under standard state conditions?

A: Combustion is an exothermic reaction.  The balanced chemical equation for the combustion of…

Q: The equation for the combustion of octane is: 20,Hmu) +250e 16CO, +18H,0 AH =-10,900 kJmol" a. What…

A: The heat of the reaction is 10900 KJmol-1 which means that 10900 KJ of heat is released when 2 moles…

Q: Write the chemical reaction used to determine the heats of formation for the following substance:…

A: The amount of heat absorbed or released when 1 mole of compound is formed from its respective…

Q: How much potassium nitrate has to dissolve in water to absorb 117 kJ of heat?

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Q: Calculate the enthalpy change for the reaction of ti

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Q: How much heat is released during the combustion of 1.24 kg of C5H12?

A: Given: 1.24 kg of C5H12 The conversion of kg into g is as follows. 1 kg=1000 g1.24 kg=1240 g

Q: How much energy (in kJ) is released by the combustionof 1.00 mol of C8H18?

A: The enthalpy change (∆H0) associated with a chemical reaction is furnished as the amount of energy…

Q: Given that the enthalpy of neutralization for the reaction of HCl (a strong acid) and NaOH (a strong…

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Q: a. Calculate the enthalpy of reaction for: 2 CO(g) + O2(g) → 2 CO2(g) b. If 18.5 grams of carbon…

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Q: The reaction releases 251 kJ of heat. What is the AH for the reaction written? kJ/mol as

A: Given information: Mass of liquid methanol = 11.08 g Heat released (q) = 251 kJ

Q: calculate the heat of formation, AH°f , of P4O10.

A: Target equation:-  4P(s) + 5O2(g) -----> P4O10(s

Q: Determine the total heat absorbed by the reaction, in kJ, if 2.50 g of O, is required to fully…

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Q: calculate the standard enthalpy change for this reaction.

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Q: What mass of O2 in grams can be produced when 250.0 kJ of heat was supplied? (MM O2 = 32.00 g/mol)…

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Q: 3. The equation for the combustion of octane is: 20H18) + 250, e16CO) +18H,0 AH - -10.900 kJmol ()…

A: Number of moles of octane required to produce 10900 KJ of energy = 1 mol Number of moles of octane…

Q: What mass of galena (PbS) is converted to lead (II) oxide if 200 kJ of heat are produced?

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Q: How much heat is released when 1.4 mol of hydrogen fluoride are produced?

A: During the reaction, the heat might be absorbed or it will be released. The process where heat is…

Q: Given the following data, calculate the enthalpy of formation for H2O2 (AH¢ of H2O2(!)) H2O2(() ;…

A: The enthalpy of formation of a compound is the change in enthalpy during the formation of 1 mole of…

Q: Between CO2 and air, which loses more heat upon cooling after heating? Explain why

A: The heat energy absorbed or released in a process is given by Q=mc(T2-T1) where Q=heat energy, m=…

Q: What is the heat of formation of FeO, based on the data

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Q: The enthalpy of formation of H2O(l) is -285.8 kJ/mol. What is the enthalpy change if 1.62 g H2(g)…

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Q: enthalpy

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