Which equation below is a correct Heat of Formation (AH°) reaction? N2 (s) + 2 02 (s) --> N2O4 (s) S8 (s, rhombic) + 16 Na (s) ---> 8 Na2S (s) 1/8 S (5, rhombic) + 2 Na (s) --> Na2S (s) O2 N2 (g) +5 02 (g) -> 2 N2O5 (g)
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A: CH4 + H2O -> CO + 3H2 One mole CH4 required 206.11 kJ Weight of H2= 1000 kg = 1000× 1000 gm…
Q: thermochemical equations to determine the heat of formation of AH° = -395.4 kJ Cdiamond + O2(g) →…
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Q: Given the following heat of formation values, calculate the heat of reaction for the following:…
A:
Q: Given the following heat of formation values, calculate the heat of reaction for the following:…
A: The reaction given is, Given: The formation enthalpies of the reactants and products are,
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Q: Can you help me on 2 a and b
A: The amount of heat that is evolved or absorbed in the reaction is known as enthalpy of the reaction.…
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A: Total energy needed for completion of reaction is defined as enthalpy of reaction.
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Q: If 2.000 g tungsten is reacted with 0.092 mL of 12.5 M sodium hydroxide and 0.092 mL of water, how…
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Q: . From the following heats of reaction, I) N2(g) + 2O2(g) à 2NO2(g) ∆H = +67.6 kJ…
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A: Given ∆Hf ( CO2) = -393.5 KJ/mole ∆Hf ( C3H8 ) = -103.8 KJ/mole ∆Hf ( H2O ) = -285.8 KJ/mole…
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A: Given: NO (g)+O3 (g)→NO2 (g)+O2 (g) ∆H=-198.9 kJ/molO3 (g)→3/2 O2 (g)…
Q: Using the equations 2 Sr(s) + O2 (g) → 2 SrO (s) AH° = -1184 kJ/mol CO2 (g) → C (s) + O2 (g) AH° =…
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Q: Determine the enthalpy of reaction for HCI(g) + NaNO2(s) → HNO2(1) + NaCl(s) 2NACI(s) + H2O(1) →…
A:
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Q: C2H5OH(l)+O2(g) --> CO2(g)+H2O(l), ΔHrxn=−1418 KJ/ mol How many grams of CO2 were produced…
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Q: How many moles of H2 are required to give off 2551 kJ of heat in the following reaction? N2 (g) + 3…
A: Heat of Rxn = -91.8 KJ/mol Q = 2551 KJ
Q: a. 0.045 g of sulfur (rhombic) burns, forming SO2 (g) ( A;H° for SO2 (g) 296.84 kJ/mol) Enthalpy…
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Q: Consider the reaction below with the indicated heats of formation. 2 N2O (g) + O2 (g) --> 4 NO (g)…
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Q: 1. Based from the thermochemical equation given, O2(g) ----> N2(g) + NO2(9) AH = +67.6 kJ Calculate…
A: Here, we have to keep in mind that as we reverse the reaction, sign of enthalpy of reaction also…
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- Questions 15-21 concern the reaction 2 SO2(8) + 102(g) 2 2 SO3(g), the crucial step in the production of sulfuric acid. For this reaction AH° = -198 kJ/mol and AS° = -0.187 kJ/mol·K. SO2 (perhaps from the production of copper metal) is mixed with air and heated, resulting in the formation of SO3. (All concentrations are in Kolks units.) %3D 15. At a certain temperature Kc = 314 for the reaction 2 SO2(g) + 102(g)22 SO3(g). If [O2] = 0.200 and [SO2] = 0.0528 when the system is at equilibrium, what is [SO3]? A. [SO3] = 3.32 B. [SO3] = 1.45 C. [SO3] = 0.418 D. [SO3] = 0.747 16. A system is set up in which the concentrations of SO2, O2, and SO3 are all 0.123. The system is heated to a temperature where K. = 14.7. Which of the following equations can be used to calculate the concentrations of SO2, O2, and SO3 when 2 SO2(g) + 102(8) 2 SO3(g) reaches equilibrium? (0.123-2х)2 (0.123+ 2x) (0.123+ x)' (0.123 – 2x)? (0.123 – 2x) (0.123– x)! A. 14.7 = В. 14.7 %3D (0.123+ 2x)? (0.123 –…9-4. For each of the following reactions: (1) Calculate the enthalpy change for the reaction using Standard Enthalpy of Formation values from the table posted on the Course Resources page. (2) State whether the reaction is endothermic or exothermic. а. 3 Са0() + 2 Feе(s) > Fe,0%3(s) +3 Сa('s) b. 2 C;Ho(g) + 7 02(g) → 4 CO2(g) + 6 H2O()Given the following reactions: Reaction # 1 2 3 4 Reaction A(s) + 3B(g) → 3C(g) + D(g) 2E(s) + 3F₂(g) → D(g) F₂(g) + C(g) B(1) B(1)→ B(g) →>> ΔΗ 2,046 29 -289 37 Calculate the enthalpy (in kJ) of the following reaction using Hess' Law: 4E(s) + 3C(g) → 2A(s) Round your answer to the nearest kJ.
- The standard reaction enthalpy for 2 CO(g) ---> 2 C(s) + O2(g) is: +2 ΔHf°[CO(g)] + Δ>Hf°[CO(g)] - ΔHf°[CO(g)] -2 Δ>Hf°[CO(g)] +2 ΔHf°[C(s)] + ΔHf°[O2(g)]One of the best-selling light, or low-calorie, beers is 4.2%alcohol by volume and a 12-oz serving contains 110 Calories;remember: 1 Calorie = 1000 cal = 1 kcal. To estimatethe percentage of Calories that comes from thealcohol, consider the following questions. (a) Write abalanced chemical equation for the reaction of ethanol,C2H5OH, with oxygen to make carbon dioxide andwater. (b) Use enthalpies of formation in Appendix Cto determine ΔH for this reaction. (c) If 4.2% of the totalvolume is ethanol and the density of ethanol is0.789 g/mL, what mass of ethanol does a 12-oz servingof light beer contain? (d) How many Calories arereleased by the metabolism of ethanol, the reaction frompart (a)? (e) What percentage of the 110 Calories comesfrom the ethanol?Rb₂O(s) +____H₂O(1)→ Co2(CO3)3(s) + heat → 3_H₂O(1) + 1_As2O5(s) →➜ NaClO3(s) + heat → (110q000 sd, opt! 2 H3 As 0, 4 Ini Siyoda canl Mg(s) + H₂SO4(aq) → Myson noileupo unor ton boonstad to out + H₂ Om adami zogasdo ne
- Reaction Type? Enthalpy? (ΔH) Spont.? (-ΔG)?Yes, No, or Maybe (TD*) C5H12(g) + 8O2(g) -> 5CO2(g) + 6H2O(g) + heatIn the "Méthode Champenoise," grape juice is fermented in a wine bottle to produce sparkling wine. The reaction is C,H12Os (aq) + 2C, H;OH(aq) + 2002(9) Fermentation of 893 ml grape juice (density is 1.0 g/cm') is allowed to take place in a bottle with a total volume of 971 mL until 15% by volume is ethanol (C,H; OH). Assuming that CO2 obeys Henry's law, calculate the partial pressure of CO, in the gas phase and the solubility of CO, in the wine at 25°C. The Henry's law constant for CO, is 3.1 x 10-2 mol/L atm at 25°C with Henry's law in the form C = kP, where C is the concentration of the gas in mol/L. (The density of ethanol is 0.79 g/cm.) (Enter your answers to two significant figures.) Partial pressure atm SolubilityCalculate Kpfor the reaction 2NOCl(g) -> 2NO(g) + Cl2(g) at 400°C if Kcat 400°C for this reaction is 2.1 × 10–2.
- Be sure to answer all parts. Silver bromide is used to coat ordinary black-and-white photographic film, while high-speed film uses silver iodide. (a) When 75.2 mL of 5.00 g/L AGNO3 is added to a coffee-cup calorimeter containing 75.2 mL of 5.00 g/L Nal, with both solutions at 25°C, what mass of AgI forms? g AgI (b) Find ДH" rxn kJ (c) What is AT, soln (assume the volumes are additive and the solution has the density and specific heat capacity of water)? K7:23 ◄ Search 1 2- 3c₂²- Balance the following chemical equation (if necessary) for the combustion reaction of glucose: + C6H12O6 (S) + O₂(g) → CO₂(g) + H₂O (g) OH Question 1 of 20 (s) 2 3 4 CI Reset (1) C Co 5 6 7 8 9 (g) H 个 x H₂O 5G 86 Tap here or pull up for additional resources Submit O (aq) O 81 (a) Does doubling the volumes of acid and base double the amount of heat? 1 (b) Does doubling the concentrations of acid and base double the amount of heat? 2 (a) What happens when different amounts of acid and base are used? What happens when sulfuric acid is substitutted for hydrochloric acid?