The thermochemical equation: 2H2S(g) + 3O2(g) 2H20(l) + 2SO2(g) has a standard enthalpy of reaction equal to -1,124.06 KiloJoules. What is the enthalpy change for the combustion of 0.5 gram of H2S? A. -1 6.50 KJoules B. - 4.13 KJoules C. - 8.25 Joules D. - 2.06 KJoules

Q: CH4(g) + 2O2(g) CO2(g) + 2 H2O(1) AH = -890.3 kJ. How much heat will be released if 4.0 g of methane…

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Q: Given the following enthalpy values:                                                       Delta-Ho…

A: Delta-Ho (kJ)…

Q: How many moles of H₂ are required to produce -4701 kJ of heat in the following reaction? N₂ (g) + 3…

A: Given: The chemical reaction is: N₂ (g) + 3 H₂ (g) → 2 NH₃ (g) ∆H° = -91.8 kJ/mol To find out: ?…

Q: Consider an aqueous reaction of equal volumes of 2.0 M HCl and 2.0 M NaOH, with a final volume of…

A: Given information,    Final volume of solution = 100 mL    Temperature change= 2.5 deg C    Specific…

Q: For which reaction below does the enthalpy change under standard conditions correspond to a standard…

A: Enthalpy of formation is the enthalpy change when 1 mole of substance is produced from the elements…

Q: Given the thermochemical reaction below is this an exo- or endothermic process? 2H2 + O2 --> 2H2O…

A: In given reaction ∆H is negative so is reaction is exothermic. If we reverse any chemical reaction…

Q: How many grams of octane CgH18 must be burned to produce 3.25 X 10" kJ of heat? 2 C3H18 + 13 O2- 16…

A: In this problem, we have to calculate the mass of octane burnt during combustion to provide 3.25×104…

Q: Aluminum metal reacts with chlorine with a display of sparks: 2 Al(s) + 3 C12(g) → 2 AICI3(s) AH =…

A: Given- Weight of Al=5.000g Molar mass =26.982g/mol  2Al(s)+3Cl2(g) -> 2AlCl3(s)

Q: Calculate the heat of formation of HCI(g) using the information below: CH4lg)+ 4 Cl2(g) → CCla(g) +…

A: Given  Enthalpy of formation of CH4  = -75 KJ Enthalpy of formation of CCl4  =  -96 KJ Enthalpy or…

Q: Calculate the heat of combustion of methane(CH4) in kJ/mol. Have a balance chemical equation. Use…

A: The balanced chemical reaction of the combustion of methane is shown as,

Q: A scientist measures the standard enthalpy change for the following reaction to be -1142.2 kJ:…

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Q: 4. Consider the thermochemical reaction given below: 2 C6H6 (1) + 15 0₂ (g) 12 CO₂ (g) + 6 H₂O (g)…

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Q: A scientist measures the standard enthalpy change for the following reaction to be -1054.0…

A: For H2S: ΔH∘f=−20.63 kJ/mol For O2: ΔH∘f=0 kJ/mol For H2O:ΔH∘f=−285.8 kJ/mol

Q: A scientist measures the standard enthalpy change for the following reaction to be -111.2 kJ :…

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Q: Given the thermochemical equation SO2(g) + 1/2 O2(g) ---> SO (g) ΔH = -99kJ/mol how much heat is…

A: Given :-  SO2(g) + 1/2O2(g) → SO3(g)  ∆H = -99kJ/mol  To calculate :-  amount of heat evolved from…

Q: The combustion of a certain compound has: q = -49 kJ and w = -3.8 kJ. What is ΔE? An Fe piece…

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Q: Consider the following chemical reaction: C5H12(l) + O2(g) ------------> CO2(g) + H2O(g) Calculate…

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Q: Given the thermochemical equations: A(g)-->B(g) delta H=60kJ B(g)-->C(g) delta H=-110kJ Please…

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Q: Consider: 2Al (s) + Fe203 (s) 2 Fe (s) + Al203 (s) in which AHO = -850. kJ. How many grams of Al are…

A: Given: 2Al(s) + Fe2O3(s) -----> 2Fe(s) + Al2O3(s).    ∆H = -850kJ

Q: The overall reaction in a commercial heat pack can be repre- sented as 4Fe(s) + 30₂(g) 2Fe₂O3(s) ΔΗ…

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

Q: Consider the reaction, C2H4(G) + H2(G) -> C2H6(G), where -137 kj of heat is released. How many…

A: Moles of C2H4 = 3.5 Heat =?

Q: 5. Calculate A H for H2(g) + Cl, (g) → 2HCI (g) based on the reactions: AH = -176 kJ AH = -99.22 kJ…

A: Given, a) NH3 (g) + HCl (g) → NH4Cl (s) ∆H = -176 kJ b) N2 (g) + 3H2 (g) → 2NH3 (g) ∆H = -99.22 kJ…

Q: Consider the following reaction:N2O(g) + NO2(g) → 3 NO(g)                      ΔHrxn = 155.6…

A: Thermodynamic is the branch of chemistry that mainly deals with the heat transfer between system and…

Q: Given the standard enthalpies of formation for the following substances, determine the change in…

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Q: Does the burning of propane in outdoor grill have positive or negative enthalpy of reaction?…

A: Given question is : Does the burning of propane in outdoor grill have positive or negative enthalpy…

Q: 8. AHcomb for chicken fat can be calculated using AHcomb = (Custem AT )/n, where n is the moles of…

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Q: how to get molar enthalpy change of reaction for 2H20(g) sample: 2 H2 (g) + O2 (g) -> 2 H20 (g)…

A: The enthalpy change for the formation of one mole of a compound from its elements in their most…

Q: C(graphite) + O29) CO 2(9) AH° = -11020 kJ/mol For the reaction: Choose... Choose... -1.41x 103 -523…

A: Since u have  posted multiple question we will solve the first question for you. To get the…

Q: Consider the following chemical reaction: C3H4(g) + HCl (aq) ----------> C3H6Cl2(g) 412 kJ/ mole…

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Q: A. O 2C2H6(g) + 702(g) 4CO2(g) + 6H2O(g) B. O C2H6(g) + 3.5014) → 2CO2(g) + 3H2O(g) C. O 2C2H6(g) +…

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Q: When the organic fuel C2H4O combusts the balanced chemical reaction (with lowest whole number…

A: Enthalpy  of combustion is defined for 1 mole substance

Q: For which reaction below does the enthalpy change under standard conditions correspond to a standard…

A: Standard enthalpy of formation of a compound is defined as the standard enthalpy change when one…

Q: A human with a mass of 65 kg produces 10. MJ of heat every day through metabolic activity. 1. The…

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Q: Use the standard enthalpy of formation of N₂O4 (g) (AH° formation = 9.16 kJ/mol) and H₂O (g) (AH°…

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Q: If the heat produced by the reaction of combustion of 1 mole of ethanol (MMethanol" 46.07 g/mol) is…

A: Answer :- 4.60 × 103 (kJ/mol)  Heat produced by combustion of 155 g Ethanol, C2H6O = 4.60 × 103…

Q: The combustion of 11.25 g of oxalic acid, C,H2O4 (s) in a bomb calorimeter whose heat capacity is…

A: given data is weight of oxalic acid is 11.25g heat capacity is 4.60KJ/0C temperature changes from…

Q: How many moles of H₂ are required to produce -3451 kJ of heat in the following reaction? N₂ (g) + 3…

A: We have given that N2(g) + 3H2(g) -----> 2NH3(g) ∆H = -91.8KJ/mole

Q: Solve the following thermochemical reactions: 2 HCl + Pb PbCl₂ + H₂ H=-1861 J/mole What is the…

A: Note: As per our guidelines, we are supposed to answer only one question when multiple questions are…

Q: 12.Methanol (CH3OH) is a possible alternative automobile fuel with a density of 6.5 lb/gal and a…

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Q: A chemist measures the energy change AH during the following reaction: Cl₂(g) + H₂(g) → 2 HCl(g) Use…

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Q: a heat of formation of zero?

A: Elements in their standard states have a standard enthalpy of formation equal to zero, because in…

Q: Calculate enthalpy changes for the following: a. 0.084 g of sulfur (rhombic) burns, forming SO2(g) (…

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Q: 3. Given the thermochemical equation: SO₂(g) + O₂(g) → SO3(g) AHxn =-99 kJ Calculate how much heat…

A: Note: Since you have posted multiple questions, we will provide the solution only to the first…