Hydrogen sulfide is produced during the decomposition of organic matter. When 0.5380 mol H2S burns to produce SO2 (g) and H2O (g) , -278.7 kJ of heat is released. What is this heat in kilocalories?

Q: Calculate the kinetic energy in joules of an automobile weighing 4175 lb and traveling at 45 mph. (1…

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Q: The following thermochemical equation is for the reaction of N₂ (g) with H₂ (g) to form NH3(g).…

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Q: What is the kinetic energy of a baseball with a mass of 117.7 g traveling at a speed of 1.377 m/s?

A: Given, Mass of a baseball (m) = 117.7 g = 0.1177 kg Speed of a baseball (v) = 1.377 m/s Kinetic…

Q: The reaction of hydrogen and nitrogen gases produces 5.00 g of ammonia and releases 3250 cal of…

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Q: In a constant-pressure calorimeter, 60.0 mL of 0.310 M Ba(OH), was added to 60.0 mL of 0.620 M HCI.…

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Q: A student is using calorimetry to determine the heat of solution for various salts. When the student…

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Q: Consider the combustion of liquid C₅H₈ in oxygen gas to produce carbon dioxide gas and water vapor.…

A: Combustion is the reaction of a substance with oxygen. In the presence of oxygen, hydrocarbons…

Q: A calorimeter is used to measure the heat transferred between objects or in a chemical or physical…

A: ASSUMPTIONS IN CALORIMETRY : 1. no heat is transferred between the calorimeter and the outside…

Q: The theoretical heat of solution of sodium nitrate, NaNO3, is 20.50 kJ/mol. When 1 mole of NaNO3 is…

A: Given: The theoretical heat of solution of sodium nitrate (NaNO3) = 20.50 kJ/mol We have to find…

Q: Propane (C3H8 readily undergoes combustion. When 1.00 kg of propane is burned, how much heat is…

A: Combustion of propane can be represented as C3H8 (g) + O2 (g) ---------> 3 CO2 (g)  +4 H2O (l)…

Q: If 63.50 g of an unknown metal at 97.6 °C initially produced a resulting temperature of 39.5 °C when…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: During photosynthesis, plants use energy from sunlight to form glucose and oxygen from carbon…

A: 1- In this question, we want to calculate the mass of CO2 in grams unit.  You can see whole…

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A: The specific heat required to raise the temperature of per gram of a substance is given as:   The…

Q: A sample of iron absorbs 77.8 J of heat, upon which the temperature of the sample increases from…

A: Formula, Q = MSΔT

Q: The reaction for the combustion of propane is kcal (DOʻHT + (8) 0E – (3)OS + (3)*H°Ɔ mol AH = -526.3…

A: Given, C3H8 (g) + 5O2 (g) → 3CO2 (g) + 4H2O (l) ∆H = - 526.3 kcal/mol Note: negative sign (-)…

Q: 1621 kg car is traveling down the road at 89.4 km/h. While traveling at this rate of speed, what is…

A: The question is based on the concept of kinetic energy. the amount of energy possessed by a molecule…

Q: Which of the following describes any heat flow that occurs in a well-sealed coffee cup calorimeter?…

A: In a well sealed coffee cup calorimeter, the energy gained or lost by the surroundings is equal to…

Q: When calculating the heat of reaction why did we have to add C calorimeter   specific heat ?

A: A calorimeter is a device used to determine the quantity of heat involved in the chemical or…

Q: Determine the heat of reaction in calories of 670 g, from the complete combustion of octane

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Q: 2. For each of the following experimental errors clearly state if the error would increase,…

A: Specific heat : It is the quantity of heat required to raise the temperature of one gram of any…

Q: When 13.99mL of HCl of unknown concentration (but less than that of the base) are reacted with…

A: Given : Concentration of NaOH = 3.172 M Volume of NaOH solution = 15.00 mL = 0.0150 L…

Q: Consider the following reaction: + 2 XD → AD₂ + 2 GX = -487.4 kJ AG₂ ΔΗ, O rxn You measure that…

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Q: You are riding on your bike and stop pedaling, coasting along the road. Eventually, your bike slows…

A: According to the first law of thermodynamics, the energy of the universe remains constant. For a…

Q: [References] Use the References to access important values if needed for this question. When HBr(g)…

A: We can solve this question using the stoichiometry of the reaction. As given in the question , for…

Q: A piece of hot metal, X, weighs 24.50 g.  After heating in a steam bath at 100.0oC, it is plunged…

A: The principle used here is Heat loss by metal = heat gained by water

Q: 3. How many kilojoules are given off when 17.8 mol of CH4(g) react? CH4(g) + 202(g) → CO₂(g) +…

A: Methane reacts with oxygen to form carbon dioxide and water. The equation for the balanced chemical…

Q: A household water heater containing 50 gallons (227 L) of water is heated burning natural gas…

A: Given: Volume of water heated = 227 L Initial temperature of water = 25.0 oC Final temperature of…

Q: What is the heat change when 14.9 g of NH3 reacts with excess O2 according to the following…

A: This question is related to thermodynamics. Where NH3 reacts with O2, now convert the mass of given…

Q: What is the specific heat of a metal with a mass of 14g,heat of 3.45kj and a change in temperature…

A: Heat transfer done during this process,q = mCpΔT Given that,heat, q = 3.45 kJ = 3.45x103 J  mass of…

Q: When 500. mL of acetylene, CaHa, combusts in air at standard temperature and pressure, etermine how…

A: given-volume of acetylene =500mL =0.5Lto find- how many kilocalories of hear is generated.

Q: When 13.99 mL of HCl of unknown concentration (but less than that of the base) are reacted with…

A: Given data: Volume of HCl used = 13.99 ml Volume of NaOH used = 15 mL Concentration of NaOH = 3.172…

Q: If 2C4H10 + 13O2 --> 8CO2 + 1OH2O is exothermic, is energy (heat) a reactant or product?

A: A reaction in which heat is released is called exothermic reaction.