How much heat is released if 2.00 moles CF2Cl2 reacts with 70.0 g F2 with a 75.0 percent yield? CF2Cl2 + F2 → CF4 + Cl2 ∆H for this reaction is -401 kJ/mol rxn. 1. 739 kJ 2. 802 kJ 3. 553 kJ 4. 1069 kJ 5. 985 kJ 6. 601 kJ

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Q: A sample of sucrose was burned in a calorimeter, and 41,600 joules of heat energy were released.…

A: Energy can neither be created nor be destroyed. Thus, heat released from sample of sucrose is…

Q: Consider the reaction N₂ + 3 H₂ → 2 NH3 + 92.2kJ. The enthalpy of formation of NH3 is: -46.1 kJ/mol…

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Q: Carbon monoxide is produced industrially from the reaction shown below. If producing CO requires…

A: CH4 + H2O -> CO + 3H2 One mole CH4 required 206.11 kJ Weight of H2= 1000 kg = 1000× 1000 gm…

Q: Ametal radiator is made from 25.0 kg of iron. The specific heat of iron is 0.449 Jg °C. How much…

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Q: how much nitrogen monoxide is formed if 505 kJ of heat are used in its production? N2(g) + O2(g)…

A: N2(g) + O2(g) ==> 2 NO (g)

Q: 3.A 33.3 g hot piece of metal at 450K is placed in pure water that has a volume of 155.0 mL which…

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Q: Piece of metal with a mass of 48.342 g at an initial temp of 108 C is placed into 50 g of water…

A: Given, mass of metal =48.342 graminitial temperature of metal =108 °Cmass of water =50 graminitial…

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A: The combustion reaction is given as: CH4 + 2O2  ---> CO2 + 2H2O   When 8.01 gram of CH4 are…

Q: How much heat is rel;eased to the surroundings when 5.00 g of CO2 is produced according to the…

A: We can solve the problem by determining the moles of CO2 that is actually produced in the reaction.…

Q: Exothermic reactions have a positive enthalpy change. O True O False

A: The solution is as follows:

Q: The overall reaction in commercial heat packs can be represented as 4Fe + 3O2=2Fe2O3(s)ΔH= -1652 kJ…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: A calorimetry experiment where 5.0 mol of NH4* is reacted with 5.0 mol of CN is conducted in 35.0 g…

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Q: A student performed this experiment by mixing 50.0 mL of 2.0 M NaOH solution with 50.0 mL of 2.0  M…

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

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Q: 17) A 22.9 g sample of iron absorbs 155 J of heat, sample upon which the temperature of the…

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Q: AH soln %3D II

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Q: 8. How much heat is released when 266g of carbon dioxide are formed? 2C₂H +70, 4CO₂ + 6H₂O -> AH =…

A: 1.Combusion  of ethane is exothermic  reaction.  2 . when etane undergo combusion  give carbon…

Q: Part C at A piece of metal weighing 5.50 g at a temperature of 47.8 °C was placed in a calorimeter…

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Q: What is the amount of heat released (in kJ) when 60.0 g of Fe is produced according to the following…

A: Correct answer is - 458 kJ. Molar mass of Fe = 55.845 g/mol By stoichiometry of reaction: Heat…

Q: 12.755 g of a metal initially at 99.0ºC are placed into 75.0 g of water intially at 23.0ºC. The…

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Q: When 636.5 J of heat energy is added to a 43.0 g sample of solid copper, the temperature increases…

A: This problem is based on Thermo chemistry which is a very important subpart of Thermodynamics. Here…

Q: determine the enthalpy change per mole of precipitate.

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

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Q: An ideal gas ina cylinder fitted with a piston expands at constant temperature from a pressure of 6…

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Q: 25.0 mL of 1.00 M HCl at 23.5oC react with 25.0 mL 1.00 M NaOH in a styrofoam calorimeter whose…

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Q: A student performed this experiment by mixing 50.0 mL of 2.0 M NaOH solution with 50.0 mL of 2.0 M…

A: Since the moles of acid reacting = molarity of acid X volume of acid solution in L = 2 X 50 / 1000 =…

Q: 2. Mercury (II) oxide is a reddish mineral that is used as the cathode in mercury batteries. It is…

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Q: 1.64 L of hydrochloric acid are mixed with 735 mL of ammonia in a calorimeter. The initial…

A: Solution - According to the question - Given - 1.64 L = 1.64 * 10000 = 1640 ml Total volume = 1640 +…

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: Consider the reaction B2H6(g) + 3 O2(g) → B2O3(s) + 3 H₂O(g) AH = -2035 kJ/mol Calculate the amount…

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Q: A sample of 35.41 g of Cus at 96.73 degrees celcius was added to a calorimeter containing 148.3 g of…

A: Given:…

Q: A 21.74 g sample of a substance is initially at 24.4 °C. After absorbing 2903 J of heat, the…

A: A numerical problem based on thermodynamics that is to be accomplished.

Q: The standard heat of formation for NO2 is 33.2kJmol. How much energy is required to form 810.0 g of…

A: Given : The standard heat of formation for NO2 is 33.2kJ/molWhich implies that 33.2 KJ of heat is…

Q: A student performed this experiment by mixing 50.0 mL of 2.0 M NaOH solution with 50.0 mL of 2.0 M…

A: The volume of solution = volume of acid + volume of base = 50 + 50 = 100 mL hence the mass of the…

Q: When 25.0 g hydrogen gas react according to the following reaction, how many kJ of heat are released…

A: Given thermochemical equation is  CO(g) + 3H2(g)   --> CH4(g) + H2O (g)  ;  ∆Hrxn = – 206 kJ Mass…

Q: A metal pellet with mass 25.0 g and temperature 90.0 °C is dropped into 100.0 g water originally at…

A: Given:  Mass of metal = 25.0 gm  Initial  temperature = 90.0 °C  Mass of water = 100 gm  Initial…

Q: Consider the reaction.   2Fe2O3⟶4Fe+3O2.    Δ?∘rxn=+824.2 kJ   The formation of 12.0 g of O2…

A: 2Fe2O3 ——> 4Fe + 3O2          Heat = +824.2 kJ Clearly,  this heat is released when 3 moles of O2…

Q: The heat change that accompanies the formation of 1.00 mol of carbon dioxide from its elements is…

A: we have to calculate the heat change for the formation of 0.650 mole of carbon dioxide

Q: E In a constant-pressure calorimeter, 70.0 mL of 0.300 M Ba(OH), was added to 70.0 mL of 0.600 M…

A: The reaction between barium hydroxide and hydrochloric acid is a neutralization reaction, which can…

Q: In a calorimetry experiment similar to the one performed today, a student used 50.0 mL of 1.0 M NaOH…

A: Since you have posted multiple questions, we are entitled to answer the first only. 5) Given:…