How many grams of CoHe must decompose according to the following chemical equation to transfer 430| kJ of heat? CeHs(l) – 3 C2H2(g) AH = 630| kJ

Q: Write chemical equations to show what happens when each of the following substances is mixed with…

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: What is the enthalpy change when 42.0 mL of 0.350 M sulfuric acid reacts with 16.0 mL of 0.100 M…

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Q: In a constant-pressure calorimeter, 55.0 ml. of 0.350 M Ba(OH), was added to 55.0 mL of 0.700 M HCI.…

A: Given,The volume of Ba(OH)2=55 mLThe concentration of Ba(OH)2=0.350 MThe volume of HCl=55 mLThe…

Q: Calculate: C(graphite) + O2(g) → CO2(g) ΔH° = -393.5 kJ H2(g) + ½O2(g) → H2O(l) ΔH° = -285.8 kJ…

A: the solution of the problem can be solved by using kirchhoff's equation.

Q: The lead-acid storage battery is the oldest rechargeable battery in existence. It was invented in…

A: Given that : There are two reactions that take place during the discharge of the lead-acid storage…

Q: 2. (a) The industrial process for the production of sulphuric acid has three steps. S (s) + O2 (g)…

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Q: For a reaction with ΔHo = 40 kJ/mol, decide which of the following statements is (are) true. Correct…

A: NOTE: Since, we only answer upto three sub-parts, we'll answer the first 3. Please resubmit the…

Q: 1. You have calculated the AH for the formation of ammonium chloride from your experimental data HCI…

A: Given Reaction : HCl + NH3 ---> NH4Cl ∆H°f = -167.159 KJ/mole ∆H°f = -80.835 KJ/mole ∆H°f =…

Q: Given the reactions, X(s) + 0,(g) – XO(s) AH = -532.9 kJ %3D XCO,(s) XO(s) + CO,(g) AH = +290.3 kJ…

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Q: A(s) + B(s) -> D(g) + heat The reaction shown above is -

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Q: Consider the problem below: (Equation 1) 2 H2O(l) ---> 2 H2(g) + O2(g) ΔH = 571.6 kJ (Equation 2)…

A: The given equations are, (Equation 1) 2 H2O(l) ---> 2 H2(g) + O2(g) ΔH = 571.6 kJ (Equation 2)…

Q: According to the following reaction how many grams of hydrogen would be needed to produce…

A: Given equation: H2 (g)+ 12O2 (g) →H2O (l).  Energy released in this reaction = 285.83 kJ. (given) We…

Q: (a) How much heat is released when 25.0 g of methaneburns in excess O₂ to form gaseous CO₂ and…

A: Given: mass of methane = 25.0 g Reaction:

Q: Given the following reaction: 4 Fe(s) + 3 O2 (g) → 2 Fe2O3 (s) ΔH = -1648 kJ 52.0 g of Fe (MM =…

A: 52.0 g of Fe is reacted.Thus, moles of Fe reacted

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: For the equation: NaNO3 (s) → NaNO3 (aq) If 20 grams of NaNO3 were placed into 200 grams of water at…

A: Enthalpy of dissolution :-      It is the amount of heat evolved or absorbed when one mole of a…

Q: The enthalpy of neutralization of a newly discovered compound, J(OH)3, was determined using a…

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Q: (a) Convert 41.3 L atm to kcal. (Use dimensional analysis)  (b) Convert –279.67°F to K. (C)The…

A: Bond enthalpy: It can be defined by saying that the amount of energy required to break the bond for…

Q: Calculate the enthalpy of synthesizing hydrogen iodide to from hydrogen and iodine. 12(s) + H2(g) →…

A: Enthalpy of reaction is  calculated as difference in enthalpy  of products and enthalpy of…

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Q: (Q77) The standard Gibbs free energy (AG°rxn) for the formation of sulfur trioxide from sulfur…

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Q: Consider the problem below: (Equation 1) 5 CO(g) + 5 H2O(l) ---> C5H10(l) + 5 O2(g) ΔH = 890.6 kJ…

A: To get the ∆H for equation 3 , we have to adjust the 1st two Reaction . If we reverse the Reaction ,…

Q: Phosphoric acid, which is commonly used as rust inhibitor, food additive and etching agent for…

A: Chemical reactions can be added, subtracted, or multiplied like an algebraic equation.

Q: How much energy is released when 7.00 mol iron is reacted with an excess oxygen?   4 Fe+ 3 O2 → 2…

A: Given reaction is : 4 Fe+ 3 O2 → 2 Fe2O3    ...ΔH = -1652 kJ To calculate:  Energy released = ?…

Q: What is the heat of reaction, ΔH°? CO2(g) + H2O(l) à H2CO3(aq)   –20.2 kJ mol–1   –1379 kJ mol–1…

A: Multiple questions

Q: 17. The enthalpy of formation for H20(g), CO2(g), and C2H5OH(1), in kJ/mol, are given as follows…

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Q: Using the equations H, (g) + F, (g) → 2 HF (g) AH° = -79.2 kJ/mol C (s) + 2 F, (g) → CF, (g) AH° =…

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

Q: Given the standard enthalpy changes for the following two reactions: (1) 2Pb(s) + O₂(g) → 2PbO(s)…

A: Recall the given reactions,                          1 2 Pb s  +  O2 g  →  2 PbO s…

Q: 16. A system is set up in which the concentrations of SO2, O2, and SO3 are all 0.123. The system is…

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Q: ) of the following reaction: ?

A: ∆H°formation for pure substance at room temperature value is Zero . Here C(graphite) and Hydrogen…

Q: 4. The Haber Process is conducted using one of the most important reactions ever. N2 (g) + H2 (g) =…

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Q: Calculate the amount of heat transferred when 26.0 g of CH3OH(g) is decomposed by this reaction at…

A: According to reaction, 2 moles of CH3OH involves +252.8 kJ

Q: Calculate the amount of heat transferred when 27.0 g of CH3OH(g) is decomposed by this by 2CH3OH(g)…

A: The balanced chemical reaction is given below.

Q: determine the products

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Q: 6A + 2C 6D Determine the enthalpy(AH) in kJ of the above reaction using the reactions below: 6B 2C…

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Q: Given these reactions, where X represents a generic metal or metalloid 1) H, (g) + 0,(g) H,O(g) AH,…

A: The ΔH of the desired reaction can be determined using Hess’s Law. According to Hess’s Law, if a…

Q: 1. How many grams of copper (II) oxide are needed to produce 693 kJ of energy? 3 CuO + 2 Al -> 3 Cu…

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Q: What quantity of heat (in kJ) is absorbed in the process of making 0.749 mol of CF4 from the…

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Q: The standard enthalpy change for the following reaction is 581 kJ at 298 K. ΔΗ° = 581 kJ SnO₂ (s)…

A: Change in enthalpy is an extensive property. Means its value depends on the amount of matter.…

Q: A large sport utility vehicle has a mass of 2500 kg. Calculate the mass of CO2 emitted into the…

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Q: 8.06 g of M9SO4 is placed into 100.0 mL of water. The water's temperature increases by 6.70°C.…

A: Given : Volume of water = 100.0 mL  And mass of MgSO4 dissolved = 8.06 g Molar mass of MgSO4 =…

Q: How do i combine these reactions for a combustion reaction?

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Q: 1. What is the kinetic energy in kilojoules of a space station weighing 8010 kg and moving at a…

A: According to the Bartleby's policy, an expert is allowed to answer one question at a time. The…

Q: Calculate AH"n for each of the following: (a) 2H;S(g) + 30:(8) → 250:(g) + 2H20 (g) (b) CHa(g) +…

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Q: Calculate AH for the process: N2(g) + 202(g) → 2NO2(g) from the following information: N28) +O2(g) →…

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Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.    

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.