How much heat (in kJ) will be released (∆H) if 0.4501 mol of NH₃ are mixed with 0.200 mol of O₂ in the following chemical reaction? 4 NH₃ (g) + O₂ (g) → 2 N₂H₄ (g) + 2 H₂O (g) ∆H° = -286 kJ/mol

Q: The reaction of 2SO3(g)=2SO2(g)+O2(g) has an enthalpy change of 198kJ. How many grams of sulfur…

A: From the given reaction we can see that when 2 moles of SO2 is produced, 198 KJ of energy is…

Q: How much heat must be absorbed by 125 gg of ethanol to change its temperature from 21.5 ∘C to 34.8…

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Q: 2.164 g sample of an organic substance (MM = 180.16 g/mol) is burned in a bomb calorimeter, the heat…

A: Solution - According to the question - Given value  - cp = 4.313kj/°C weight of substance = 2.164 g…

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: If the specific heat of methanol is 2.51 J/K-g, how many joules are necessary to raise the…

A: The formula of heat is given by: q = m×c×∆THere, m = massc = specific heat∆T = change in temperature

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: CaO(s) reacts with water to form Ca(OH)2(aq). If 6.66 g CaO is combined with 99.84 g H2O in a coffee…

A: Given data,Mass of CaO=6.66gMass of water=99.84gInitial temperature=20oCFinal…

Q: Question attached

A: Given, The combustion reaction of Acetone- C3H6O + 4 O2 → 3 CO2 + 3 H2O  The energy of the above…

Q: The value of AH° for the reaction below is -82 kJ. kJ of heat are released when 80.9 grams of HBr is…

A: The balanced reaction given is, Given: ΔH of reaction = -82 KJ. And mass of HBr formed = 80.9 g.

Q: Glucose, C6H12O6, is converted into ethyl alcohol, C2H5OH in the fermentation of fruit juice to…

A: The chemical equation for conversion of glucose to ethyl alcohol.C6H12O6 (s) → 2 C2H5OH (l) + 2 CO2…

Q: The specific heat of a certain type of cooking oil is 1.75 J/(g⋅°C).1.75 J/(g⋅°C). How much heat…

A: Given data :: Cp of cooking oil = 1.75 J g-1℃-1 q= ? m=2.08 Kg = 2080 g T1=23 ℃  T2= 191℃

Q: A bag filled with lead shots is dropped from a height of h = 33.0 m. The total mass of the bag is m…

A: According to the law of conservation of energy, the total energy for a given isolated system remains…

Q: How much energy is required to change the temperature of 15.0 g Fe from 18.5oC to 56.8oC? The…

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Q: 6. The reaction for the combustion of octane, CeH18, is shown below. 2 CH18(g) + 25 0:(g)16 CO:(g) +…

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Q: What mass of natural gas (CH4) must burn to emit 267 kJ of heat?CH4(g) + 2 O2(g) ¡ CO2(g) + 2…

A: It is given that when 1 mole of methane is burned with 2 moles of oxygen to release carbon dioxide…

Q: The specific heat capacity of lead is 0.13 J/g°C. How much heat (in J) is required to raise the…

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Q: One tablespoon of cookie dough has a mass of 13.02 g13.02 g. It is combusted in a calorimeter whose…

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Q: A 240.0-g sample of water at 25.0°C is mixed with 120.9 g of a certain metal at 100.0°C. After…

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Q: 2 Fe,0, → 4 Fe + 30, ΔΗ = +824.2 kJ The formation of 66.0 g of O2 results in the absorption of 18100…

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Q: The heat of combustion of glucose (C 6 H 12 0 6) is 2.82 x 10 kJ/mol. If a 1.25 g sample of glucose…

A: Option 6.21 kJ/oC is answer

Q: The thermochemical equation for the formation of methyl alcohol indicates that 239 kJ of energy is…

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Q: A chemist measures the energy change AH during the following reaction: 2 H,O(1) → 2 H,(g)+O2(g)…

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Q: When 34.0 g of water at 24.0 °C are mixed with 46.0 g of water at 67.0 °C, what is the final…

A: Suppose the temperature of the final solution is X. When two such solutions are mixed where one…

Q: A bag filled with lead shots is dropped from a height of h = 22.9 m. The total mass of the bag is m…

A: Given,Height, h = 22.9 mMass, m = 620.0 gSpecific heat, c = 130 J/kgKWe know that, 1 J = 1 kg m2/s2⸫…

Q: when 75.4 J of energy is absorbed by 0.25 mol of CCl4 what is the change in temperature? the…

A: Given, number of moles of CCl4 =0.25 moleamount of energy absorbed =75.4 Jspecific heat of CCl4…

Q: A 140.0-g sample of water at 25.0°C is mixed with 101.1 g of a certain metal at 100.0°C. After…

A: Specific heat capacity of an element or a compound is equal to the amount of heat released or…

Q: A sample of carbon is burned in a calorimeter. if the calorimeter absorbs 94 J/K during the reaction…

A: Heat absorbed by the calorimeter = + 94 J.K-1 Heat absorbed by universe i.e. heat released by…

Q: 4. Gasohol contains ethanol (C2H5OH), which when burned reacts with oxygen to produce water and…

A: A reaction is exothermic if heat is released ( ΔH is negative ) and reaction is endothermic if heat…

Q: One tablespoon of cookie dough has a mass of 12.50 g12.50 g. It is combusted in a calorimeter whose…

A: The energy released by 12.50 g cookie dough can be calculated by the following formula.…

Q: 9) The AH for the solution process when solid sodium hydroxide dissolves in water is 44.4 kJ/mol.…

A: Given Enthalphy  = 44.4 KJ /mol Mass of NaOH = 13.9 g Mass of H2O = 250 g Initial temperature = 230C

Q: 60. Both graphite and diamond burn. C(s, diamond)+O2(8) -CO2(8) For the conversion of graphite to…

A: The given reaction for the conversion of graphite to diamond is as follows:

Q: For the reaction below, ΔHrxn = −126 kJ/mol. How much heat is released when 2.00 mol of NaOH is…

A: The complete balanced equation for reaction between Na2O2 and H2O is as follows: 2Na2O2 (s) + 2H2O…

Q: Commercial cold packs consist of solid ammonium nitrate and water. NH4NO3 absorbs 25.69 kJ of heat…

A: Given that: Mass of ammonium nitrate = 3.40 gMass of water = 100 gInitial temperature of solution =…

Q: The specific heat of a certain type of cooking oil is 1.75 J/(g⋅°C).1.75 J/(g⋅°C). How much heat…

A: Q = m . s . (T2 -T1) Where, Q = heat absorbed; m = mass of substance in g; s = specific heat of…

Q: CH4 + 202 → CO₂ + 2H₂O AH-890kJ/mol How much heat is released when 2.7 g of methane gas is burned in…

A: Here we are required to find heat released when 2.7 gm of methane is burnt

Q: 81. The specific heat capacity of iron is 0.461 J[g x K) and the specific heat capacity of titanium…

A: Given: Specific Heat capacity of iron= 0.461 J/gK Specific Heat capacity of titanium=0.544 J/gK A…

Q: 350.0 g of 5.00°C water is heated until its temperature is 37.0°C.  If the specific heat of water is…

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Q: A chemist measures the energy change AH during the following reaction: 2 H,O(1) → 2 H,(9)+O2(9)…

A: We would use the given thermochemical equation to answer these questions.

Q: A 80.8 g chunk of granite (specific heat: 0.79 J/g°C) is heated to 225.7 °C and dropped into a…

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Q: 4. Baking soda, NaHCO3, decomposes when it is heated. How much heat will be absorbed by the…

A: Given :-Baking soda , NaHCO3, decomposes when ifis heated. we have to find how much heat willbe…

Q: The combustion of butane, CAH10, is given as: 2C4H10(g) + 1302(g)- 8CO2(g) + 10H20(1), AH = -5314…

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Q: How many joules of energy are needed to heat 68 g of aluminum foil from 55°C to 93°C? Aluminum has a…

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Q: 35 g of water at 40 C and 95 g of water at 60 C are mixed. What is the temperature of this mixture ?…

A: Given data :

Q: What quantity of heat (in kJ) will be released if 1.20 mol of SrO is mixed with 0.567 mol of CO, in…

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Q: The specific heat of a certain type of cooking oil is 1.75 J/(g⋅°C).1.75 J/(g⋅°C). How much heat…

A: Given: The specific heat, ‘c’ of cooking oil is 1.75 J/(goC) Mass, ‘m’ of oil is 2.42 kg Initial…

Q: Ethyl alcohol, C2H5OH, has a specific heat of 2.40 ?? °?. Which of the following statements best…

A: Specific heat = 2.40 J /g °C  Which statement is best described :  a) It takes 1 joule of energy to…

Q: The value of ΔH0 for the reaction CH3OH(l) → CO(g) + 2H2(g) is +128.1 kJ. Determine the heat…

A: Given, The balanced chemical equation is given below, CH3OH(l) → CO(g) + 2H2(g) ΔH0=+128.1 kJ

Q: A group of students place 15.41g of a metal into a test tube. They place the test tube into a beaker…

A: Given, mass of the metal = Wmetal = 15.41 g  Mass of the water = Wwater = 10.47 g Initial…

Q: In an experiment, 138 g of graphite is heated to 90.0°C and then quickly transferred to 150.0 g of…

A: Since whatever heat is lost by graphite, is used by the water and calorimeter. Hence heat lost by…