What mass of natural gas (CH, ) must you burn to emit 276 kJ of heat? CH4 (9) + 202(g) → CO2(g) + 2H2O(g) AHn = -802.3 kJ

Q: 2. A 7.35 g sample of quinone (C6H4O2) is burned in a bomb calorimeter whose total heat capacity is…

A: 2. Given that, 7.35 g of sample of quinone (C6H4O2) is burned in a bomb calorimeter. The heat…

Q: (a) If 10.6 moles of water at 35°C absorbs 12.30 kJ, what is the final temperature of the water? The…

A: Note: Since you have posted multiple independent questions in the same request, we will solve the…

Q: How much heat evolves from burning 16.4 g of sulfur, Sg, in air? g S8(s) + 8 O2(g) → 8 SO2(g) AH°r=…

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Q: .32 The material typically used to heat metal radiators is water. If a boiler generates water at…

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Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.65 kg sample…

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Q: 28.0g of a substance with a molecular weight of 52.0 g/mol is placed in a bomb2 calorimeter with a…

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Q: Suppose that the molar enthalpy of a reaction is -17.41 kJ/mol and 1.49 x 106 joules of heat are…

A: The following formula is valid to solve for the answer of the given question. ∆H=qn where, '∆H' is…

Q: The combustion of hydrogen-oxygen mixtures is used to produce very high temperatures (ca. 2500 °C)…

A: In the given question we have to calculate the quantity of heat evolved in kilojoules when equal…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 281.0 mg sample…

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Q: The principal component of LPG is butane, C4H10(g). If combustion of 1 mole of butane produces 126…

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Q: If the reaction of 2.5 g of Ca transfers 487 J of heat to a solution in a calorimeter (i.e. qsoln =…

A: Given : Mass of Ca reacting = 2.5 g And amount of heat transferred to the solution = 487 J Atomic…

Q: The addition of 3.15 g ofBa(OH)2•8H2O to a solution of 1.52 g of NH4SCN in 100 g of water in a…

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Q: 1. A sample of metal with mass 250.0 g is heated to 130.0 ℃ and dropped into 425 g of water at 26.0…

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Q: What is the final temperature of a 5 gram sample of gold ( c = 0.129 J/goC), initially at 220C,…

A: Given, for Question 5) effusion time of Argon gas =45 secwe are asked to calculate the effusion time…

Q: How many milliliters of water at 23 °C with a density of 1.00 g/mL must be mixed with 180 mL (about…

A: The heat transferred by a substance is determined as the equation:

Q: You wish to heat water to make coffee. How much heat (in joules) must be used to raise the…

A: Given- Weight of water = 0.150 kg = 150 gm (1 kg = 1000 gm) T1= 26°C  T2= 97°C Specific heat…

Q: 2. What is the heat capacity of 25.0 g of ethyl alcohol if its specific heat is 2.42 J/g C?

A: Given is 25.0 g ethyl alcohol  Heat capacity  = Hc = 2.42 J/g°C Specific heat = ?

Q: When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution…

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Q: 4-A system suffers an increase in internal energy of 80 J and at the same time has 50 J of work done…

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Q: 187 g 662g 44.Given that CaO(s) + H,O(1) Ca(OH)2(s), AH°, =-64.8 kJ/mol, how many grams of CaO must…

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: What is the AE of a system if 184 kJ of work is done on the system and it loses 267 kJ of heat?

A: We use the first law of thermodynamic for calculating the change in internal energy. This low state…

Q: The combustion of 4.00 grams of milk in a bomb calorimeter resulted in a temperature increase of 3.4…

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Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 0.54 kg sample…

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Q: 1)What is the specific heat if 24.8 g of a metal absorbs 275 J of energy and the temperature rises…

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Q: 3. Methanol undergoes combustion according to the equation: 2CH,OH + 30, → 2CO0 + 4H,0 ) AH = -1…

A: Given,

Q: Hydrazine, N2H41), is used in rocket fuels. The thermochemical equation for the combustion of…

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Q: Calculate the heat released when 2.00 L of Cl2 (g) with a density of 1.88 g/L reacts with an excess…

A: Given: Volume of chlorine = 2.00L Density = 1.88g/L Temperature = 250C Pressure = 1 atm Molar mass…

Q: Consider the hypothetical thermochemical equation 3 A+ B 2 C for which AH = 59.3 kJ/mol. %3D If the…

A: Ans

Q: The complete combustion of propane, C 3H 8(g), is represented by the equation:  C 3H 8(g) + 5 O 2(g)…

A: when the heat is evolved in a reaction then that reaction is known as exothermic reaction.  The…

Q: 49. When 2.50 g of methane burns in oxygen, 125 kJ of heat is produced. What is the enthalpy of…

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Q: 4. A 74.8 g sample of copper at 143.2°C is added to an insulated vessel containi 165 mL of glycerol,…

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Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 0.19 kg sample…

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Q: The addition of 3.15 g of Ba(OH)2∙8H2O to a solution of 1.52 g of NH4SCN in 100 g of water in a…

A: Given that : Mass of BaOH2.8H2O (m1) = 3.15 g Mass of NH4SCN (m2) = 1.52 g Mass of water (m3)  = 100…

Q: What mass of natural gas (CH,) must burn to emit 263 kJ of heat? CH4 (9) + 202 (9) → CO2 (g) +…

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Q: Lightweight camping stoves typically use white gas, a mixture of C5 and C6 hydrocarbons. Calculate…

A: Given: ∆Hocomb=-3535 kJ/molmass of C5H12=1.30 kg

Q: What is the internal energy of the system that absorbs 90 J of heat and 15 J work done by the…

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Q: The specific heat of a certain type of cooking oil is 1.75 J/(g⋅°C).1.75 J/(g⋅°C). How much heat…

A: Q = m . s . (T2 -T1) Where, Q = heat absorbed; m = mass of substance in g; s = specific heat of…

Q: the molar heat capacity ofC4H8O?

A: Given that amount of heat, temperature difference, mass of the sample. I have provide solution in…

Q: The value of AH° for the reaction below is 128.1 kJ CH OH -CO, + 2H 2(g) 2(g) (1) How may kJ of heat…

A: CH3OH ---> CO2(g) + 2H2(g)       ΔH0 = 128.1 kJ 128.1 kJ of heat is consumed when 2 mol of H2 is…

Q: In walking 1 km, you use about 100 kJ of energy. Thisenergy comes from the oxidation of foods, which…

A: Given  100 kJ energy is used in 1 km walking Energy comes from oxidation of foods is 30% efficient.…

Q: Please help me, double and triple check your answers previous tutors got it wrong,

A: Given data, 1 mole propane burned to obtained 350kJ of heat

Q: How many milliliters of water at 23 °C with a density of 1.00 g/mL must be mixed with 180 mL (about…

A: The net heat absorbed by water will be equal to the heat released by coffee. Determination of heat…

Q: temperature of the calorimeter increases from 22.14°C to 26.82°C. What is the heat of combustion per…

A: #(a): Given: Initial temperature of the calorimeter, Ti = 22.25 oC  Final temperature of the…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 0.43 kg sample…

A: Given, mass of sample C4H11N, m = 0.43 kg Moles  0f C4H11N = 0.43 ×103 g73 g/mol change in…

Q: Methane is a major component of natural gas. Methane burns in air, releasing approximately 890 kJ of…

A: 1 mole of methane releases 890 kJ 0.521 mole of methane releases ___ kJ Heat released = 0.521 mol x…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 0.88 kg sample…

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Q: A 237 g sample of molybdenum metal is heated to 100.1 °C and then dropped into an insulated cup…

A: mass of Molybdenum = MMo = 237 gInitial Temperature of Molybdenum =TMo = 100.1°Cmass of water = Mw =…

Q: Liquid hydrogen peroxide releases oxygen gas in its decomposition. 2 H2O2 — 2 H,О + O2 AHn = -196.1…

A: Given :-  2H2O2 → 2H2O + O2  ∆Hrxn = -196.1 kJ  To calculate :-  Amount of heat released when…

Q: 3. A piece of metal of mass 20.0 g at 100.0°C is placed in a Styrofoam cup calorimeter containing…

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