PLEASE JUST EXPLAIN B NO NEED TO DO A  H3BO3 (aq) → HBO2 (aq) + H2O (l)              ΔH1 = - 0.02 kJ/mol  H2B4O7 (aq) + H2O (l) → 4HBO2 (aq)           ΔH2 = - 11.3 kJ/mol  H2B4O7 (aq) → 2B2O3 (s) + H2O (l)              ΔH3 = 17.5 kJ/mol    a)Find the ΔH for this overall reaction: 2H3BO3 (aq) → B2O3 (s) + 3H2O (l)

Q: what is rge enthalpy change for combustion of 15.0g of ethanol?

A: Step : 1           what is the enthalpy change for combustion of ethanol ?

Q: Given the following information, calculate the change in enthalpy (kJ) for the following reaction?…

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Q: 1. Calculate the AHrxn for the reaction, Sn (s) + Cl2 (g) → SnCl2 (s) AHrxn = ? Sn (s) + Cl2 (g) →…

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Q: Substance ΔΗ AgCl AGCN HCl -129.888 kJ/mol 141.8 kJ/mol |-171.728 kJ/mol HCN 108.5 kJ/mol HCl + AgCN…

A: The enthalpy of the reaction is also known as the heat of the reaction. It is defined as the change…

Q: Using the following data and Hess's law; 2 SO22) + O2g) →2 SO3«g) AH°= -197.8 kJ 2 NOg) + Ozgg) →2…

A: SO2 (g) + NO2 (g) →SO3(g) + NO(g)  To get the desired reaction ∆H° value we have to adjust the given…

Q: 2 H2 (g)-CHOH (g) AH 907 ko How many kilojoules of heat are released when 330 mg of CH;OH (g)…

A: The amount of energy released is as follows.

Q: At constant pressure, the combustion of 25.0 g of C2H6(g) releases 1300 kJ of heat. What is AH for…

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Q: We can use Hess’s law to calculate enthalpy changes that cannot be measured. One such reaction is…

A: We have measured the enthalpy of reaction for following Reaction -  2 CH4(g) ---->  C2H4(g)  +…

Q: 1. 3.65g of butane is burned underneath a cup holding 1.00L of water at 21.0°C. The final…

A: Specific heat capacity of any matter is the heat quantity need to absorbed by the matter with unit…

Q: When 1.00 g1.00 g of ethanol (C2H5OHC2H5OH)is burned in the air, −29.7 kJ−29.7 kJ of heat energy is…

A: Combustion :- The burning of a compound in excess of  air or oxygen is called combustion . It is an…

Q: Using the equations 2 H2 (g) + O2 (g) → 2 H2O (1) AH° = -572 kJ/mol Ca (s) + ½ O2 (g) → CaO (s) AH°…

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Q: Using the following data reactions: DH° (kJ) H2(g) + Cl2(g) ® 2HCI(g) -184 H2(g) ® 2H(g) Cl2g) ®…

A: Bond energy is defined as the energy required to separate an isolated molecule (i.e., in gas phase)…

Q: Given that that AH of formation of n-butane. J: C-H - 412, C-C-340, H-H- 436, AH ab kl graphite:…

A: Interpretation-  To determine the enthalpy of formation of n- butane when here given ∆HoB.D / KJ :…

Q: H2(g) + F2(g) C(s) + 2 F2(g) 2 C(s) + 2 H2(g) –→ C,H¼(g) AH = -537 kJ AH = -680 kJ AH = +52.3 kJ 2…

A: Given equations are, H2(g)+F2(g)→2HF(g)       ∆H=-537kJ-------------(1)C(s)+2F2(g)→CF4(g)…

Q: The molar heat capacity at constant pressure for CO(g) is 6.97 cal mol-1 K-1. How much heat in cal…

A: Here  Molar mass of CO  12.011g/mol + 15.999g/mol = 28.01g/mol  Given mass of CO = 0.59 g  Now…

Q: From the following enthalpies of reaction H2(g) + F2(g) – 2HF(g) AH = -537 kJ C(s) + 2 F2(g) →…

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Q: Find the ∆H of the reaction. Show the complete and step by step solution. PCl5(g) -> PCl3(g) +…

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Q: Calculate the enthalpy change for the complete complete combustion of ethane (C2H6). (Note: the…

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Q: Formation Enthalpies (kJ/mo) CHs (g) -103.8 0 (g) CO2 (g) H2O (s) -393.5 -285.8 21- Using the table…

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Q: The complete combustion of ethanol, C2H5OH 1molar mass =46.0 g>mol2, proceeds as…

A: Calculate the number of moles of ethanol. Number of moles of ethanol = Given mass of ethanolMolar…

Q: The thermochemical equation for the combustion of benzene is shown below: 2 C6H6(liq)  +  15 O2(g)…

A: Applying enthalpy change of combustion of benzene.

Q: The combustion reaction of 1-pentanol is: C5H11OH(l)+152O2(g)→5CO2(g)+6H2O(l) The heat of…

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Q: Calculate ΔHrxn for the following reaction: CH4(g)+4Cl2(g)→CCl4(g)+4HCl(g)   given these…

A: Some Basic Rule  1) If Reaction is reverse then sign of  ∆H value changes. 2) If any number is…

Q: Question is attached

A: Combustion is the addition of oxygen to a substance. On the combustion of hydrocarbons, carbon…

Q: Which system does more work? O AE = -507 J, q = 388 J O AE = 496 J, q = 522 J

A: Which system does more work ?

Q: The heat of combustion of 1-pentanol is -3331 kJ/mol. Given the following information, calculate the…

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Q: Part 5: Combined Heat Calculations Substance Specific Heat AHfus for H2O: 6.01 kJ/mol H2O (s) 2.1…

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Q: . The heat of combustion of fructose, C6H12O6, is -2812 kJ. Using  the following information,…

A: For the given reaction,

Q: Given the heat of formation of the following compounds from their elemer AH°F = -393.5 kJ/mol CO:(g)…

A: The question is based on concept of chemical thermodynamics. We have to calculate enthalpy change…

Q: heat of the reaction for the formation of methanol.

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Q: Use the information provided to determine AH°rxn for the following reaction: AH°f (kJ/mol) CH4(3) +…

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Q: 9. Calculate AH for the reaction 4NH3 (g) + 502 (g) → 4NO (g) + 6H20 (g), from the following data.…

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Q: Use the information provided to determine AH°rxn for the following reaction: AH°f (kJ/mol) CH4(g) +4…

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Q: how many kJ of heat is released when 5.75g of BaO(s) (153.3g/mol) is produced? 2Ba(s) + O2(g) --->…

A: 2Ba(s) + O2(g) ---> 2BaO(s)             ∆H = -1107kJ From the above equation: Heat released per…

Q: SnCl2 (k) → Sn (k) + Cl2 (g) 2 SnCl2 (k) + 2 Cl2 (g) → 2 SnCl4 (s) +325.1 kJ -372.4 kJ Using the…

A: The enthalpy of a reaction provides us with the amount of energy that is used up (absorbed) or given…

Q: Benzoic acid is used to determine the heat capacity of bomb calorimeters because it can be obtained…

A: Given that : The energy of combustion (Hcombustion) = -26.43 kJ/g Temperature increase (∆T) =…

Q: 10. Calculate AH for the reaction CH4 (g) + NH3 (g) → HCN (g) + 3 H2 (g), given: a. N2 (g) + 3 H2…

A: Ans  Enthalpy change for the reaction can be calculated by using Hess laws

Q: Given the following decomposition reaction 2H2O2 (l)---> 2H2O(l) + O2 (g) ΔH = –196.1 kJ A. How…

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: Methane, CH4, reacts with oxygen to produce carbon dioxide, water, and heat. CHĄ(g) + 202(g) -----…

A: Consider the reaction of combustion of methane as; Reaction:              CH4 g      +       2 O2 g…

Q: Use the information provided to determine AH°rxn for the following reaction: CHĄ(g) + 4 Cl2(g) →…

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Q: The ΔH°rxn for the following reaction: NaOH(aq) + HCl(aq) → NaCl(aq) + H2O(l) is –55.7 kJ/mol.…

A: The ΔH°rxn for the following reaction:  NaOH(aq) + HCl(aq) → NaCl(aq) + H2O(l) ; ΔH°rxn =-55.7…

Q: Use the information provided to determine AH°rxn for the following reaction: CH4(g) + 4 Cl₂(g) →…

A: The standard enthalpy of substance in pure state is taken as zero

Q: CaO + H2O ->Ca(OH)2      heat = -64.8kJ/mol, how much heat liberated when 7.15g CaO is dropped into…

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Q: Calculate the heat of reaction deltaH for the following reaction: 2H2(g)+O2(g)——>2H2O (g) Round your…

A: The reaction given is, => 2 H2 (g) + O2 (g) → 2 H2O (g)

Q: Determine the enthalpy of formation of acetone, C3H6O(l) C3H6O(l) + 4O2(g) -> 3CO2(g) +3H2O(l)…

A: The enthalpy determines the heat associated with a chemical reaction. The change in enthalpy is the…

Q: Cyclohexene, C6H10 undergoes hydrogenation to produce cyclohexane, C6H12 according to the equation…

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Q: An increasing number of vehicles can run on either gasoline ,C9H20 or C2H5OH. Calculate the amount…

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Q: 48  A 1.45 g sample of acetic acid , HC2H3O2 was burned in excess oxygen in a bomb calorimeter. The…

A: 1.45 g sample of acetic acid was burned in excess oxygen in a bomb calorimeter.Heat capacity of…

Q: Calculate the heat of reaction deltaH for the following reaction: 2NH3(g)——> N2(g) + 3H2(g) Round…

A: