3Ag* (aq) + Cr (s) → 3 Ag (s) + Cr3+ (aq) Ag*(ag) + 1 e¨ → Ag (s) Cr3+(ag) + 3 e 0.80 V → Cr (s). -0.74 V

Q: CeH6ln + 15 O2(g)12 CO2(g) + 6 H20() AH = -5.854 x 10 kJ in unknown amount of CEH6() was combusted…

A: The question is based on the concept chemical thermodynamics.   We have been given heat value.   We…

Q: ΔH

A:

Q: Measurements show that the enthalpy of a mixture of gaseous reactants decreases by 191. kJ during a…

A: The enthalpy change of the given reaction is = -191. kJ The work done by the gas mixture is =-63. kJ…

Q: How much heat is liberated at constant pressure if 0.833 g of calcium carbonate reacts with 59.7 mL…

A:

Q: When a 8.00 g sample of KCI is dissolved in water in a calorimeter that has a total heat capacity of…

A: Given : Mass of KCl dissolved = 8 g Total heat capacity of calorimeter = 6.15 KJ/K And change in…

Q: Calculate the enthalpy of the reaction 4B(s) + 302(g)→2B,O3(s) given the following pertinent…

A: Hess's law states that regardless of the multiple steps of the reaction, the total enthalpy change…

Q: The addition of  1.250 g of zinc metal (65.38 g/mol) to 0.100 L of  0.1912  M HCl in a coffee-cup…

A: Mass of zinc = 1.250gMolarity of HCl= 0.1912MVolume of HCl = 0.1LTemperature difference =…

Q: Measurements show that the enthalpy of a mixture of gaseous reactants increases by 273. kJ during a…

A: Given :  1. Change in Enthalpy = + 273 kJ  2. Work done = 122 kJ .

Q: The addition of  1.270 g of zinc metal (65.38 g/mol) to 0.100 L of  0.1942  M HCl in a coffee-cup…

A: We first need to decide on the limiting reagent, and then we can proceed to solve the reaction- The…

Q: Write the thermochemical equation for the following reactions that occur at constant pressure:  a)…

A: A thermochemical equation is a chemical equation which represents the enthalpy change of the…

Q: Calculate ΔH for the reaction             C2H4(g)   +   6F2(g)  ⟶   2CF4(g)   +   4HF(g) given the…

A: Multiplying 2 to reaction 1 and reaction 2 and than adding them will give the net reaction as 2…

Q: Two aircraft rivets, one iron and the other copper, are placed in a calorimeter that has an initial…

A: Given: Initial Temperature=20°C

Q: How did you calculate to get 17.6 KJ

A: Here, clausis clapeyron equation is used to calculate the heat and by putting all the values, heat…

Q: (a) Consider the following thermochemical data to: 2CO2(g) → 2 C (s, graphite) + 2 O2 (g) AH° =…

A: The enthalpy change of an reaction is extensive property i.e on changing the stoichiometry of…

Q: 0.81 g sample of KCl is added to 37.9 g H2O and stirred until KCl completely dissolves in a…

A: When KCl is mixed with water as we see temperature of the system decreases . Heat of solution is…

Q: 1. Determine the “disorder of the system” Cl2(g) + 3F2 (g) → 2ClF3 (g)  a) positive b) negative c)…

A: Entropy: The measure of the disorder of a system. entropy increases with increasing the disorder of…

Q: When 2.25 g of sodium hydroxide (NaOH) was dissolved in 100.00 g of water a value of 10.00oC was…

A: The heat of the solution produced when 2.25 g of sodium hydroxide is dissolved in 100 g of water, is…

Q: How are q and ΔHrxn different from ΔH°rxn, (remember the definitions and unit)?

A: q is the amount of heat transferred to a system whereas  is used to describe the change in enthalpy.…

Q: The addition of  1.250 g of zinc metal (65.38 g/mol) to 0.100 L of  0.1912  M HCl in a coffee-cup…

A: The mass of solution is first determined using density and volume values as follows,

Q: When 1.96 g of NaCl are added to 111 g of water in a constant pressure calorimeter , the temp of…

A:

Q: (b) Study the following thermochemical data very carefully: AH° = 242.3 kJ Cl2(g) → 2Cl(g) I2(g)…

A: The formation of compounds from its atoms in their stable sates at standard pressure and temperature…

Q: 9.) Use Hess's law to calculate AG°rxn using the following information. NO(g) + 0(g) → NO2(g) 2…

A:

Q: When 3.25 g of sodium hydroxide (NaOH) was dissolved in 150.00 g of water a value of 10.00oC was…

A: The specific heat capacity of a substance is the amount of heat which is required to raise the…

Q: Fifty (50.0) grams of hot water at 65.0oC is mixed with 40.0 g of cold water. The final temperature…

A: The amount of heat released or absorbed by a system is calculated by using the following expression:…

Q: Measurements show that the enthalpy of a mixture of gaseous reactants increases by 222. kJ during a…

A: The enthalpy change of the given reaction is = +222. kJ The work done by the gas mixture is =-167.…

Q: In a calorimetry experiment similar to the one performed today, a student used 50.0 ml of 1.0 m NaOH…

A: The term specific heat capacity refers to the amount of heat which is required to raise the…

Q: When 13.8 mL of 0.870 M lead(II) nitrate reacts with 90.0 mL of 0.777 M sodium chloride, 0.279 kJ of…

A: Answer - The correct option is - (c) 23.3 kJ

Q: Measurements show that the enthalpy of a mixture of gaseous reactants increases by 140. kJ during a…

A: Enthalpy of a mixture of gaseous reactants increases by 140. KJ  It means enthalpy change (∆H) = +…

Q: How much heat energy is required to convert 76.9 g of solid ethanol at –114.5 °C to gasesous ethanol…

A: mass of solid ethanol = 76.9 g The molar heat of fusion of ethanol (∆Hf ) = 4.60 kJ/mol Molar heat…

Q: The Bunsen burner in your labs are fueled by natural gas, which is  mostly methane, CH4. The…

A: The thermochemical equations for the combustion of methane (burning in oxygen) is: CH4(g)    +  2…

Q: Calcium carbonate can be decomposed upon applying heat with the following equation CaCO3(s)  →…

A: Calcium carbonate can be decomposed upon applying heat with the following equation: CaCO3(s)  →…

Q: How much heat (in kJ) is needed to convert 387 g Fe,03 into pure iron in the presence of excess…

A: Given: The weight of Fe2O3 is 387 g. The given reaction is, 2Fe2O3g+3Cs→4Fel+3CO2g ∆H°=+467.9 kJ

Q: What is the potential energy of a 2.90-kg object at the bottom of a well 10.3 m deep as measured…

A: Potential energy of an object is the energy by virtue of its position,  arrangement or composition,…

Q: Carbon monoxide and nitrogen monoxide gases combine to form carbon dioxide and nitrogen gases…

A:

Q: Measurements show that the enthalpy of a mixture of gaseous reactants decreases by 365. kJ during a…

A: Answer: This question is based on the first law of thermodynamics which is based on the conservation…