Q: • The thermite reaction is quite a common reaction and is spectacular. Iron (III) o de and metallic…
A: As per the guidelines only one question can be answered at a time. Please post other question…
Q: The complete combustion of solid naphthalene into CO2(g) and H2O(l) at 25 °C produces 5154 kJ/mol of…
A: Given here the complete combustion of solid naphthalene into CO2(g)and H2O(l) at 25 °C produces 5154…
Q: The ∆Hrxn for the reaction CH3OH(l) → CO(g) + 2H2(g) is +128.1 kJ. Determine the heat consumed when…
A: Enthalpy of reaction is the amount of energy released or required to complete a reaction.
Q: How many KJ of energy are released when 6.39 g of Fe reacts with excess O₂? Given the following…
A: We have to predict the energy released
Q: For a particular reaction at 25.0°C, ΔG°= 81.7 kJ and ΔH° = 76.3 kJ. What is ΔS° for this reaction,…
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Q: 8. Calcium cyanamide reacts with water in the reaction CACN2(s) + 3H2O(0) → CaO(s) + 2NH3(g) When…
A: Find the number of moles of reactants and products involved in the reaction. Step 2:
Q: How much heat evolves when 95 mL of benzene, C6H6 is consumed in the combustion reaction below. The…
A:
Q: 2K(s)+2H2O(l)–> 2KOH(aq) + H2(g)A 5.00 g chunk of potassium is dropped into 1.00 kg water at…
A: The given reaction is, 2K(s) + 2H2O(l) → 2KOH(aq) + H2(g) The enthalpy change of the reaction can be…
Q: A chemical reaction takes place and the H is recorded for reactants as being 200 kJ. The products…
A: For a chemical reaction, the enthalpy of reaction (ΔHrxn ) is the difference in enthalpy between…
Q: The value of G° at 141.0°C for the formation of phosphorous trichloride from its constituent…
A: Given: ∆H° = -720.5 kJ/mol ∆S° = -263.7 J/K = -0.2637 KJ/K Temperature (T) = 141.0°C = 141 +273.15…
Q: The formation of rust (Fe2O3) from solid iron and oxygen gas releases -1.7 103 kJ. 4 Fe(s) + 3…
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Q: A 72.0 mL sample of 1.00 M NAOH is mixed with 59.0 mL of 1.00 M H,SO, in a large Styrofoam coffee…
A: The given thermochemical equation is: H2SO4(aq) + 2NaOH(aq) ----> Na2SO4(aq) + 2H2O(l) ; ∆Hrxn =…
Q: When 50.0 mL of 0.100 M AgNO3 and 50.0 mL of 0.100 M HClare mixed in a constant-pressure…
A: Given: Specific heat of water = 4.18 J/g⋅∘C. Mass of solution = 100 g. Initial temperature (T1) =…
Q: When 50.00 mL of aqueous HCI was mixed with 50.00 mL of NaOH (in large excess), the temperature of…
A: Given : Volume of HCl solution added = 50.0 mL Volume of NaOH solution added = 50.0 mL Initial…
Q: During an experiment, a student adds 2.90 g CaO2.90 g CaO to 400.0 mL400.0 mL of 1.500 M HCl1.500 M…
A: The weight of CaO is 2.90 g. The volume of HCl is 400.0 mL. The concentration of HCl is 1.500 M. The…
Q: Calculate the change in H for the reaction 2N2(g) + O2(g) + 3H2(g) - 2NO(g) + 2NH3(g), the following…
A: Calculate the change in H for the reaction: 2N2(g) + O2(g) + 3H2(g) —> 2NO(g) + 2NH3(g) Given…
Q: For the Bunsen burner reaction, CH4(g) + 2O2(g) → CO2(g) + 2H2O(l) ΔH = - 819.5 kJ How much energy…
A: From the given reaction we can see that 2 moles of O2 is required to react with 1 mole of CH4 =>…
Q: The heat of combustion of ethane C2H6 (M= 30.08 g/mol) is 1560 kJ/mol. What is the heat combustion…
A: Solution- The molar mass of Ethane = 30g/mole The heat of combustion of ethane = 1560kJ/mole
Q: Estimate AH for the reaction. нн H. H-N-N-H+ Cl-Cl 2H-Ń-CI Express your answer using one significant…
A: bond energy of N-H = 391 kJ/mol bond energy of N-Cl = 200 kJ/mol bond energy of N-N = 163 kJ/mol…
Q: Please determine the enthalpy (in kJ/mol) of the balanced thermochemical equation when 2.15 g of…
A: The mass of the solution is the same as the mass of water and the mass of the 25.4 mL of water is…
Q: Consider two-step neutralization reaction of solid metal hydroxide MOH with an acid. The formation…
A: The enthalpy of formation of MOH is -438.15 kJ/mol. The formation enthalpy of M+ is -249.07 kJ/mol.
Q: When determining the heat capacity of the unknown metal we assumed the heat capacity of the water…
A: The heat capacity is defined as the amount of heat supplied to an object to produce a unit charge in…
Q: The density of all solutions are 1.0g/mL and their respective heat capacities 4.184J/g.K.…
A: The heat of reaction qr can be calculated by this general formula Q = mC (change in temperature)…
Q: d. One mole ammonium nitrate dissolves in water to produce aqueous ammonium ions and nitrate ions,…
A: The thermochemical equation is a balanced stoichiometric chemical reaction that can be written along…
Q: The overall reaction in a commercial heat pack can be represented as 4 Fe(s) +302 (9)→ 2 Fe,O,(s) AH…
A: Heat capacity of a substance or system indicates the amount of heat required to raise the…
Q: Limestone stalactites and stalagmites are formed in caves bythe following reaction:Ca2+ (aq) + 2…
A: The chemical reaction is as follows:
Q: If a reaction A → C with an enthalpy of reaction AHẠC can also proceed via two steps: A→ B and - C…
A: This is in agreement with the
Q: Considering the limiting reactant, how much heat is produced at constant pressure if 0.243 g of…
A:
Q: Question attached
A: Enthalpy of the reaction is the amount of heat released when 1 mole of the substance is reacted.
Q: Consider the following reactions: W(s) + C(graphite) ---> WC(s) What is the enthalpy of reaction (in…
A: Interpretation- To determine the enthalpy of the reaction ( in KJ) which is given as W(s) +…
Q: Nitromethane, CH3N02, can be used as a fuel. When the liquid is burned, the (unbalanced) reaction is…
A:
Q: The AH;° for the reaction FeO() + CO(g)– Fe(s) + CO,(g) is -16.8 kJ. Use this data and the data in…
A: Standard enthalpy of reaction is the difference between standard enthalpies of formation of…
Q: The overall reaction in commercial heat packs can be represented as 4Fe + 3O2 = 2Fe2O3 (s) ΔH =…
A:
Q: The value of AH for the reaction below is -126 kJ. The amount of heat that is released by the…
A: The reaction given is The value of ΔH of the reaction = -126 KJ. And mass of Na2O2 reacting = 25.0…
Q: For the reaction SOCl2 + H2O --- 2HCL + SO2 H=482 KJ What mass of HCl is produced when 2250…
A: Since when 2 moles of HCl is produced, energy absorbed = H = 482 KJ Hence energy absorbed per mole…
Q: The following reaction is being studied: MX (s) ⟶ M+ (aq) + X-(aq) ∆Hrxn = ??? kJ/mol MX To find…
A: Given that : Initial temperature of DI water = 22˚C Final temperature of solution = 24.5 ˚C Also,…
Q: The reaction of ammonia(g) with oxygen(g) to form nitrogen monoxide(g) and water(g) proceeds as…
A: Given that 3.47 g ammonia reacts with oxygen to give nitrogen monoxide. Number of moles of ammonia…
Q: 1.) When determining the heat capacity of the unknown metal we assumed the heat capacity of the…
A: When determining the heat capacity of the unknown metal we assumed the heat capacity of the water…
Q: The value of ΔH0for the reaction: 2Ba(s) + O2(g)→ 2BaO(s) is -1107 kJ. What is the amount of energy…
A: When two moles of solid Barium reacts with one mole of oxygen the amount of energy released is 1107…
Q: The following combustion reaction was carried out using 3.88 g O2 and excess CH4. CH4 + 2O2 → CO2 +…
A: Methane reacts with oxygen to form carbon dioxide and water. The balanced chemical equation is as…
Q: 19. A regulation college football weighs 440.0g. What is the kinetic energy (in J) of a pass thrown…
A:
Q: Given the following data: Conc. (M) Volume (mL) Tinitial (°C) Tfinal (°C) Solution NaOH 0.750 50.00…
A:
Q: If AH for the reaction 2 HgO → 2 Hg (1) + O2 (g) is 181.66 kJ, (s) then AH for the reaction Hg (1) +…
A: given : 2 H2O(s) → 2H2 (l) + O2(g) ∆H = 181.66 KJ To find : Entharpy of the reation of H2(l) + ½…
Q: For chemical reaction N2(g)+ 3H2(g) → 2NH3(g) at 298.15K the standard heat of reaction is -46.1 kJ.…
A:
Q: (a) The preparation of NO,(g) from N2(g) and O2(g) is an endothermic reaction: N2(8) + O2(g) –→…
A: Given, N2(g)+O2(g)→NO2(g) ΔH=67.7kJN2(g) = 2.50×102mLO2(g) = 4.50×102mLTemperature = 100∘C…
Q: Syngas can be burned directly or converted to methanol. Calculate AH° for the reaction CO(9) + 2H,…
A: The change in enthalpy for a reaction (∆Ho) can be determined by substracting the sum of enthalpy of…
Q: Calculate AH for the reaction 4 NH3 (g) + 5 02 (g) --> 4 NO (g) + 6 H2O (g), from the following…
A: ∆H depends on Stoichiometry of thermochemical reaction If a thermochemical equation is reversed…
Q: The reaction of nitrogen monoxide(g) with oxygen(g) to form nitrogen dioxide(g) proceeds as follows:…
A: The reaction under consideration is, 2NO + O2 → 2NO2 Here 2 moles of NO gas reacts with 1 mole of…
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- Another step in the metabolism of glucose, which occurs after the formation of glucose6-phosphate, is the conversion of fructose6-phosphate to fructose1,6-bisphosphate(bis meanstwo): Fructose6-phosphate(aq) + H2PO4(aq) fructose l,6-bisphosphate(aq) + H2O() + H+(aq) (a) This reaction has a Gibbs free energy change of +16.7 kJ/mol of fructose6-phosphate. Is it endergonic or exergonic? (b) Write the equation for the formation of 1 mol ADP fromATR for which rG = 30.5 kJ/mol. (c) Couple these two reactions to get an exergonic process;write its overall chemical equation, and calculate theGibbs free energy change.The efficiency of striated muscle is typically 37%, that is, the muscle converts 37% of the chemical energy reaching it (in the form of glucose) into mechanical work, converts the remainder into waste heat. Your biceps muscle performs mechanical work at the rate of 50 W. (a) What is the rate at which it consumes chemical energy? (b) What is the rate at which it produces waste heat? (c) Given that the oxidation of glucose yields 3.70 103 kcal/kg, what is the rate at which this muscle consumes glucose?Calculate Ksp for the salt NaCl at 25°C. Substance ΔGf°(in kJ/mol) Na+(aq) –262.0 Cl–(aq) –131.0 NaCl(s) -383.6
- The Caloric Value of carbohydrates in 1g is: 4 5 1 9The heat of combustion of carbon, hydrogen and sucrose are 394.82, -289.28 and -5665.8kj/mol resp. What is the enthalpy of formation of sucrose?The same student wanted to determine the heat of dissolution for potassium chlorate (KClO3, MW: 122.55 g/mol) in water. He measured 10 grams of KClO3 and dissolved it in a calorimeter containing 250 g of water. The temperature drop was 3.5 K. What is qH2O in Joules? What is qdissolution in Joules? What is the ΔHdissolution in kilojoules per mole? What is the ΔHdissolution in kilojoules per mole?
- Q26-C (i) Explain pyrolysis process.The same student wanted to determine the heat of dissolution for potassium chlorate (KClO3, MW: 122.55 g/mol) in water. He measured 10 grams of KClO3 and dissolved it in a calorimeter containing 250 g of water. The temperature drop was 3.5 K. What is qH2O? What is qrxn? What is ΔHrxn?Calculate the ΔH°f of C6H12O6(s) from the following data: Show the complete and step by step solution ΔH combustion of C6H12O6(s) = -2816kJ/mol ΔH°f of CO2 (g) = -393.5 kJ/mol ΔH°f of H2O (l) = -285.9 kJ/mol Equation: C6H12O6(s) + O2(g) -> CO2(g) + H2O(l)
- 4-hydroxycoumarin (s) and ammonium acetate (s) react to form 4-aminocoumarin (s) and water (l). What is the reaction enthalpy? Standard enthalpy of formation: 4-hydroxycoumarin = -351 kj/mol Ammonium acetate = -615 kj/mol Water = 285 kj/mol 4-aminocoumarin = 405 kj/molThe following reaction using hydrogen and oxygen is carried out in a bomb calorimeter: 2H2(g) + O2(g) → 2H2O(l) The specific heat of the reaction vessel is 0.200 kcal/0C-kg and the specific heat of water is 1.00 kcal/0C-kg. Assuming that m is 0.1 mole of water was formed in the experiment and Q is 7.2 kcal, calculate the heat of the reaction per mole of liquid water.The same student wanted to determine the heat of dissolution for potassium chlorate (KClO3, MW: 122.55 g/mol) in water. He measured 10 grams of KClO3 and dissolved it in a calorimeter containing 250 g of water. The temperature drop was 3.5 K. 1. What is qH2O in Joules? A. +146.4 B. -146.4 C. -3661 D. +3661 2. What is qdissolution in Joules? A. +146.4 B. -146.4 C. -3661 D. +3661 3. What is the ΔHdissolution in kilojoules per mole? A. +44.866 B. -44.866 C. +1.794 D. -1.794 4. Is the reaction endothermic or exothermic? A. Endothermic B. Exothermic