Propane, C3H8 (approximate molar mass = 44 g/mol) is used in gas barbeques and burns according to the thermochemical equation: C3H8(g) + 5 O2(g)3 CO2(g) + 4 H2O(g) AH =-2046 kJ. If it takes 1.8 x 10 kJ to fully cook a rack of lamb on a gas barbeque, how many grams of propane will be required, assuming all the heat from the combustion reaction is absorbed by the lamb? Give your answer to 2 significant figures, but not in scientific notation.

Q: If the specific heat of methanol is 2.51 J/K-g, how many joules are necessary to raise the…

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Q: THERMODYNAMICS: The combustion of 1.00 mol of glucose (C6H1206) liberates 2820 kJ of heat. If 1.67 g…

A: Given: Heat of combustion of glucose = 2820 KJ/mol. Mass of glucose burned = 1.67 g. Initial…

Q: Two gaseous pollutants that form in auto exhaust are CO and NO.  An environmental chemist is…

A: Answer: CO (g)  +  NO (g) →→ CO2 (g) +  ½N2 (g) for this reaction ∆H = 373.3 kJ.

Q: What is the enthalpy, dH, when 176.1 g NiO reacts with unlimited sulfur dioxide in the following…

A: A numerical problem based on thermochemical reaction, which is to be accomplished.

Q: An iron piston in a compressor has a mass of 3.62 kg. If the specific heat of iron is 0.449 J/g°C,…

A: •  The values provided in the question are:-  i) Mass of an iron piston, m = 3.62 kg = 3620 g { 1 kg…

Q: I need help with calculating the net change of enthalpy heat. The question is as follows,  Nitric…

A: Note: In the first step two moles ammonia (NH3) is formed Given reactions are shown below,…

Q: In the following experiment, a coffee-cup calorimeter containing 100. mL of H2O is used. The initial…

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Q: Aluminum reacts with hydrochloric acid to produce aluminum chloride and hydrogen gas: Al (s) + 3 HCI…

A: mass of the Al = 2.683 gVolume of the solution = 200 mLdensity of the solution = 1 g/mLmass of the…

Q: The specific heat of toluene, C7H8, is 1.13 J/g-K. How many joules of heat are needed to raise the…

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Q: Consider a neutralization reaction in which NaOH(aq) is mixed with H2SO4(aq) in a coffee cup…

A: Given is coffee cup calorimeter,  Mass m = 159.0 g ΔT = 7.70 °C   We need to find heat of…

Q: When 129.0 g of 0.200 M NaCl(aq) at 22.0 °C is added to 212.0 g of 0.100 M AgNO3(aq) at 22.0 °C in a…

A: Answer is explained below.  Given that, mass of NaCl = 129.0 g and mass of AgNO3 = 212.0 g.  Due to…

Q: Question 6

A: Given information:Mass of sample = 1.00 kgAmount of heat or energy added to it = 35.0 kJInitial…

Q: The propane fuel (C3H8) used in gas barbeques burns according to the thermochemical equation:…

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Q: THERMODYNAMICS: The combustion of 1.00 mol of glucose (C6H1206) liberates 2820 kJ of heat. If 1.38 g…

A: Given:  Heat released on combustion of 1 mol glucose = 2820 KJ  Mass of glucose = 1.38 gm  Mass of…

Q: A silver block, initially at 56.8∘C, is submerged into 100.0 g of water at 24.4∘C in an insulated…

A: Mass of water = 100 gSpecific heat capacity of water = 4.18 J/(g⋅∘C) Temperature change for water =…

Q: THERMODYNAMICS: The combustion of 1.00 mol of glucose (C6H1206) liberates 2820 kj of heat. If 1.49 g…

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Q: THERMODYNAMICS: The combustion of 1.00 mol of glucose (CGH1206) liberates 2820 kJ of heat. If 1.77 g…

A: We will first find number of moles of glucose, then find heat relased by glucose.

Q: A 7.78 g sample of methanol was combusted in a bomb calorimeter. The temperature of the calorimeter…

A: In order to find molar enthalpy in kJ/mol, we have to find heat absorbed/received by calorimeter in…

Q: When 50.0 g of 0.200 M NaCl(ag) at 24.1 °C is added to 100.0 g of 0.100 M A9NO3(aq) at 24.1 °C in a…

A: Given: 0.200 M NaCl         mass  of NaCl =50. 0 gram         specific heat = 4.20 J/g C   find:…

Q: How much heat is released (negative value) if 19.955 g of a metal with heat capacity of 0.385 J/g°C…

A: The given mass of the metal (m) = 19.955 g Heat capacity of the given metal (C) = 0.385 J/g  °C…

Q: A slab of iron ( 465g) is removed from an oven and plunged into 375g water in an insulated…

A: Given, Mass of iron, mi = 465gMass of water, mw = 375g(Tw)i = 26oC , (Tw)f = 87oC Cfe = 0.449 J/g oC…

Q: When methanol, CH, OH, is burned in the presence of oxygen gas, O,, a large amount of heat energy is…

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Q: What is the maximum amount of heat (in kJ) that can be released when 27.2 g of hydrogen sulfide gas…

A: Given mass of H2S = 27.2 g molar mass of H2S = 34.1 g/mol

Q: . A 10-g solid was heated in a test tube to 100℃ in boiling water and added to the coffee-cup…

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Q: When ammonia (NH3) and oxygen react at a temperature at which both compounds are in the gaseous…

A: When balanced reactions are represented including phases of all species as well as energy change,…

Q: A bottle contains 905 grams of chloroform, CHCI3, with a specific heat capacity of 0.96 J/(g.°C).…

A: Given :-  m = 905 g  Specific heat capacity (c)  = 0.96 J/(goC)  T1 = 21.0 oC  T2 = 30.0 oC  To…

Q: If 0.050 mol hydrochloric acid (HCl) is mixed with 0.050 mol of sodium hydroxide (NaOH) in a "coffee…

A: Given : Mass of solution = 183 g  Initial temperature of solution = 25.2 °C Final temperature of…

Q: A 26.9 g sample of ethylene glycol, a car radiator coolant, loses 671 J of heat. What was the…

A: Given :- mass of ethylene glycol = 26.9 g  Heat lost = 671 J  Final temperature = 32.5°C  Specific…

Q: 1. How many KJ are used by a 154lb adult while sleeping for one hour? 2. In the specific heat…

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Q: The delat H for the solution process when solid sodium hydroxide dissolves in water is -44.4 kJ/mol.…

A: Given: Mass of water = 250.0 g. Mass of NaOH dissolved = 10.1 g. Initial temperature of the solution…

Q: A 39 g aluminum spoon (specific heat 0.904 J/g-°C) at 25°C is placed in 178 mL (177 g) of coffee at…

A: A definite quantity of heat is used up in raising temperature of substances. For substance that…

Q: THERMODYNAMICS: The combustion of 1.00 mol of glucose (C6H1206) liberates 2820 kJ of heat. If 1.77 g…

A: We will first calculate heat released by given amount of glucose, then calculate heat capacity.

Q: What mass of natural gas (CH4)  must burn to emit 265 kJ  of heat? CH4(g)+2O2(g)→CO2(g)+2H2O(g)…

A: To solve this problem we have to consider the given thermochemical equation . According to this…

Q: Methane burns with oxygen to produce carbon dioxide and water as a gas. The balanced thermochemical…

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Q: A 2.57 g sample of a substance suspected of being pure gold is warmed to 72.9 °C and submerged into…

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Q: The thermite reaction in which aluminum metal reacts with iron(III) oxide to produce a spectacular…

A: The reaction is as follows: 2Al(s)+Fe2O3(s)--------->Al2O3(s)+2Fe(l).          ΔH =  -202.9 kcal.…

Q: 6.139 Hydrogen is burned in oxygen to release heat (see equation below). How many grams of hydrogen…

A: To solve this problem first we have to calculate the amount of energy required and then tha mass of…

Q: The heat of combustion of octane, C8H18 , can be measured in a way similar to the method you used to…

A: Heat capacity is given by,

Q: Q9 a)The following thermochemical equation is for the reaction of hydrogen bromide(g) to form…

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Q: An unknown metal requires 14.6 kJ of energy to raise its temperature from 3.45 °C to 54.87 °C. What…

A: Heat capacity can be calculated using the Heat and temperature difference using the below given…

Q: Predict the total quantity of heat that would be required if you wanted to prepare a cup of instant…

A: Volume of cold water is 200 ml and density is 1.0 g/mL.Specific heat of water is 4.18 J.g.-1.°C-1…

Q: The specific heat of toluene, C7H8, is 1.13 J/g-K. How many joules of heat are needed to raise the…

A: Given :-  Specific heat of toluene = 1.13 J/g.K  Mass of toluene = 40.0 g  Initial temperature =…

Q: A 350g sample of aluminum is taken out of the freezer at –20oC and placed into 500g of water at 14.6…

A: Given Mass of water = 500 g Initial temperature = 14.6°C Final temperature = 10°C Mass of…

Q: Methanol is used to heat food. The combustion of methanol can be described by the following…

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Q: Consider the following thermochemical equation: 2 NO, 2NO, AH = -114.1 kJ 02(g) (g) 2(9) Choose...…

A: 2NOg    +     O2g       →      2NO2g ∆H = -114.1kJ Molar mass of NO2 = 46gmol

Q: Two gaseous pollutants that form in auto exhaust are CO and NO.  An environmental chemist is…

A: Given,   1. COg+12O2g→CO2g    ∆H1=-283.0 KJ   2. N2g+O2g→2NOg         ∆H2=180.6 KJ

Q: 5. A 465 g chunk of iron is removed from an oven and plunged into 375 gwater in an insulated…

A: The heat transferred during the reaction can be determined the equation, q = mc∆TThe temperature of…

Q: 5. Phosphorus trichloride, PC, is a compound used in the manufacture of pesticides and gasoline…

A: As per student demand, solution for question number 5 follow as  5) given that : Mass of PCl3(m) =…

Q: Titanium(IV) oxide has a wide range of applications in industrial and consumer products, such as…

A: Endothermic Reaction Exothermic Reaction The energy is absorbed from the surrounding into the…

Q: Carbon disulfide reacts with chlorine according to the following reaction equation: CS2(8) + 3…

A: