Given the following reaction: 4 Fe(s) + 3 O2 (g) → 2 Fe2O3 (s) ΔH = -1648 kJ 52.0 g of Fe (MM = 55.845 g/mol) are reacted as above in 1.000 x 103 g of water (MM = 18.02, ΔHFUSION = 6.01 kJ/mol, ΔHVAP = 40.65 kJ/mol, specific heat = 4.18 J/(g C) that is at 20.0 °C. What will the final temperature of the water be? Select one: 367 112 20.1 91.8 100

Q: ΔH = +572 kJ for the decomposition of water by the reaction 2 H2O() → 2 H2(g) + O2(g). How many…

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Q: Question 6

A: For the given process, the heat change may be calculated as:

Q: 11 Q nple of KOH(s) at 25.0 C was added to 100.0 g of H,O(1) at room temperature inside an insulated…

A: Given that,  KOH is dissolved in water. After all the KOH is dissolved, the temperature of the…

Q: When 8.6 grams of a certain compound is dissolved in 78 grams of water in a calorimeter, the…

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Q: Given the following equation and the molar enthalpy of combustion of methane gas:  CH4((g)  +…

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Q: The standard enthalpy change for the following reaction is -340 kJ at 298 K. AH° -340 kJ 4 Cu(s) +…

A: We know that for a reaction Enthalpy change for a reaction depends on the stoichiometry of a…

Q: The same student wanted to determine the heat of dissolution for potassium chlorate (KClO3, MW:…

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Q: A tablespoon (about 15.0 mL) of sodium chloride, a common table salt, is dissolved in water. What is…

A: Given :- Volume = 15ml density of NaCl = 2.16 g/cm3 Delta H = 3.87 KJ/mol

Q: When 1.3 g of KClO3 was added to 151.1 g of water in a calorimeter, the temperature dropped by 0.588…

A: Given, Mass of KClO3= 1.3g Mass of water= 151.1g Temperature dropped(dT)=0.588°C  The heat capacity…

Q: What is the enthalpy of the reaction P406 (s) + 202(g)→P4010(s), given a) P4(s) + 302(g)→P406 AH =…

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Q: What is the Enthalpy change (in kJ) of a chemical reaction that raises the temperature of 250.0 mL…

A: Given : volume of solution = 250.0 mL density of solution = 1.25 g/mL and increase in temperature =…

Q: The standard molar enthalpy of formation of calcium carbonate (CaCO3) is - 1206.9 kJ/mol. What will…

A: (d) The reaction is as follows:    CaCO3(s) → CaO(s) + CO2(g) The molar mass of CaCO3 = 100.1 g/mol…

Q: In a reaction between Na and HCl, when 0.560g of Na is added to 75.0mL of HCl, the temperature rose…

A: Since you have posted questions with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: The same student wanted to determine the heat of dissolution for potassium chlorate (KClO3, MW:…

A: The mass of KNO3 and water are given to be 10 g and 250 g respectively. The specific heat capacity…

Q: 2. When 1.0 g of sodium nitrate was dissolved in 50.0 g of water in a calorimeter at 20.0°C, the…

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Q: Potassium nitrate, KNO,, has a molar mass of 101.1 g/mol. In a constant-pressure calorimeter, 34.4 g…

A: Given that: Mass of KNO3 = 34.4 g, mass of water = 217 g, initial temperature of water, Ti = 23.00⁰C…

Q: ΔH = +572 kJ for the decomposition of water by the reaction 2 H2O() → 2 H2(g) + O2(g). How many…

A: Number of moles decomposed = Heat given/Molar heat of decomposition Mass = Number of moles x molar…

Q: How much energy (at constant temperature and pressure) must be supplied as heat to 10.0 g of…

A: CL2 →10 gmmole=1071CL2→CI-+CI+1071mole                1071    1071

Q: When 0.278 g of sodium metal is added to an excess of hydrochloric acid, 2890 J of heat are…

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Q: Sodium chloride is added in cooking to enhance the flavor of food. V\lnen10.00 g of NaCl are…

A: It  involves usage of calorimetry technique to calculate enthalpy change for the reaction.…

Q: The salt potassium perchlorate is soluble in water. When 2.84 g of KClO4 is dissolved in 106.00 g of…

A: Mass of KClO4 = 2.84 g Mass of H2O = 106 g Total mass of mixture = (106 + 2.84) g Temperature…

Q: The dissolution of a 19.7 g of a given ionic solid in enough water to form 128 mL of solution causes…

A: `

Q: 4.51 g of MgSO, is placed into 100.0 mL of water. The water's temperature increases by 6.70°C.…

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Q: Given the following equation and the molar enthalpy of combustion of methane gas:…

A: ∆H°comb of methane = -802.5 kJ  Means, it is of one mole of methane. One Mole (16.04g) of methane…

Q: A 5.00 g-sample of KOH at 25.0 C was added to 100.0 g of H2O(l) at room temperature inside an…

A: Dissolution of compounds depends on the intermolecular forces between solvent and solute molecules.

Q: 1. When, a volume of 200 cm³ of Lithium hydroxide solution of concentration 1.00 mol/dm3 and 200 cm…

A: a) endothermic reaction:- A chemical reaction in which heat is absorbed during the process.…

Q: What is the change in enthalpy in joules when 5.44 x 10- mol of AgCI dissolves in water according to…

A: Given, 5.44 × 10-4 moles of AgCl AgCl(s) → Ag+(aq) + Cl-(aq)                            Change in…

Q: A reaction between Mg and aqueous hydrochloric acid was performed to determine the heat of the…

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Q: 3.61 g of MgSO₄ is placed into 100.0 mL of water. The water's temperature increases by 6.70°C.…

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Q: write the balanced chemical equation for the dissolution of Epsom salts in water showing heat on the…

A: Chemical reactions occur when there is any chemical change. They are written in the form of chemical…

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: During an experiment where 50.0 mL of a 1.0 M acid solution was mixed with 50.0 mL of a 1.0  M base…

A: Given,  The ∆Hrxn is : when 50.0 mL of a 1.0 M acid solution was mixed with 50.0 mL of a 1.0 M base…

Q: When 0.855 g of sodium metal is added to an excess of hydrochloric acid, 8890 J of heat are…

A: Given reaction: 2 Na (s) + 2 HCl (aq) → 2NaCl (aq) + H2 (g) The amount of sodium metal reacted =…

Q: 1.00 L of 1.00 M Ba(NO3)2 with mixed 1.00 L of 1.00 M Na2SO4, both at 25.0C in a calorimeter. The…

A: Balanced chemical equation: Ba(NO3)2 (aq) + Na2SO4 (aq) ------> 2NaNO3 (aq) + BaSO4 (s) Q  = m .…

Q: Given the following reactions Fe203 (s) + 3CO (s) → 2Fe (s) + 3CO2 (g) AH=-28.0 kJ 3Fe (s) + 4CO2(s)…

A: If the reaction is multiplied by any coefficient then the enthalpy of that reaction will also be…

Q: Define standard enthalpy of formation (AH°;).

A: To define: standard enthalpy of formation.

Q: The standard enthalpy of formation for one mole of methanol (CH₃OH) is -239 kJ. What is this value…

A: The standard  enthalpy  of formation  for one mole of methanol is-239 kJ. 1 kJ = 1000 joules  -239…

Q: 11. When a 1.0 g of material X (molar mass = 40 g/mol) was dissolved in beaker containing 50.0 g of…

A: Given: Mass of X = 1 g Molar mass of X = 40 g/mol

Q: As a bipropellant, hydrogen peroxide (H2O2) is decomposed to burn a fuel as an oxidizer. 2H2O2 → O2…

A: A. From the given reaction it is evident that 2 moles of H2O2 gives 2 moles of H2O and one mole of…

Q: 5.21 g of MgSO₄ is placed into 100.0 mL of water. The water's temperature increases by 6.70°C.…

A: The enthalpy change during dissolution is equal to the heat absorbed by the solution.…

Q: 1. What is the enthalpy of reaction per mole of HCl (g) in the following reaction.( Don't have to…

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Q: The reaction of 10.0 mL of 0.125 M NaOH and 5.0 mL of 0.500 M HNO3 gives a temperature rise of 1.36…

A: Answer: Acid and base neutralization reaction is an exothermic reaction and heat of neutralization…

Q: Heptane (C7H16)(C7H16) is a component of gasoline that burns according to the following balanced…

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Q: Q: 3 Define and elaborate the significance of Faraday’s law (first and second)?

A: There are two laws in electro-chemistry which describe the relationship between mass of the…

Q: What volume of benzene (CH6, d= 0.88 g/mL, molar mass = 78.11 g/mol) is required to produce 1.5 x…

A: In a thermochemical equation, the change in enthalpy represents the amount of heat exchanged per mol…

Q: Potassium nitrate, KNO,, has a molar mass of 101.1 g/mol. In a constant-pressure calorimeter, 48.7 g…

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Q: .When solutions of an acid and a base are mixed, heat is released. Using a coffee-cup calorimeter,…

A: The reaction taking place is given as, => NaOH (aq) + HCl (aq) ⇔ NaCl (aq) + H2O (l) Given:…

Q: 4.71 g of M9SO4 is placed into 100.0 mL of water. The water's temperature increases by 6.70°C.…

A: Since the temperature of water is increased, heat is released by the dissolution reaction of…

Q: 4.06 g of MgSO₄ is placed into 100.0 mL of water. The water's temperature increases by 6.70°C.…

A: Enthalpy of reaction is determine by change in enthalpy of product and reactant. Enthalpy of…