9. What mass of natural gas (CH4) must burn to emit 3,447 kJ of heat? CH4 (g) + 202 (g) → CO2 (g) + 2 H20 (g) AH°pn = -802.3 kJ/molxn

Q: A 110.0-g sample of a gray-colored, unknown, pure metal was heated to 92.0 oC and put into a…

A: Assuming specific heat of metal is C. Since all the heat released by metal in reaching the final…

Q: For the following thermochemical equation, CH4(g) + 2O2(g) → CO2(g) + 2H2O(l)        ΔH = –890 kJ…

A: Given reaction: CH4 (g) + 2O2 (g) → CO2 (g) + 2H2O (l). ∆H = -890 kJ. So, 890 kJ of heat is released…

Q: How much heat is produced by the complete combustion of 264 gg of CH4CH4?

A: Given:CH4g+2O2g→CO2g+2 H2Og∆Hrxn°=-802.3 kJ

Q: 3. When 1.010 g sucrose (C12H22011) undergoes combustion in a bomb calorimeter, the temperature…

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Q: Given the following reactions N2 (g) + O2 (g) → 2NO (g) 2NO(g) + O2(g) → 2N (g) the enthalpy of…

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Q: The reaction 3H2(g) + N2(g) → 2NH3(g) has an enthalpy of reaction of -92.6 kJ/mol. If 2 g of…

A: According to the given balanced chemical equation, one mole of nitrogen reacts to produce 92.6 kJ of…

Q: The standard enthalpy of formation of CO(g) is –111 kJ/mol [refer to this equation C(s) + 1/202g) →…

A: Interpretation -  To determine the enthalpy (∆Ho) for the reaction which is given as - 2C(s) + O2…

Q: Water gas, a mixture of carbon monoxide and hydrogen, is produced by treating carbon (in the form of…

A: Given :  Mass of carbon = 5.35 kg  Since , 1 kg = 1000 gm  => Mass of carbon = 5350 gm  Also,…

Q: Iron can be converted to Fe₂O₃ according to the reaction below. How much heat (in kJ) is required to…

A: The branch of chemistry that deals with the structure, properties and the reaction of the organic…

Q: An important flavor component of vanilla extract is vanillin (C8H8O3, molar mass = 152.15 g/mol).…

A: Using conservation of heat energy principle, mass of vanillin combusted can be calculated.

Q: Determine the amount of heat (in kJ) associated with the production of 1.76 × 104 g of NO2 according…

A: Molar mass of nitrogen dioxide is 46 g/mol

Q: 4. When backpacking in the wilderness, hikers often boil water to sterilize it for drinking. Suppose…

A: Given : Volume of water = 35 L                                = 35 × 10³ mL initial temperature of…

Q: Determine the mass of CO2 produced by burning enough propane to produce 114 kJ of heat. C3H8(g) +…

A: Thermodynamics is branch of chemistry in which we deal with amount of heat evolved or absorbed by…

Q: A 51.46 g piece of cadmium metal initially at 82.15 oC is placed in a calorimeter with 50.00 mL of…

A: Let the final temperature be x°C. From calorimetry, Heat loss by cadmium = Heat gain by water Heat…

Q: For the following combustion reaction CH3CH₂CH₂COOH(1) +502(g) → 4CO₂(g) + 4H₂O(g) AH = -2.18 × 10³…

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Q: 8. The equation for the combustion of methane, CH4 (the main component in natural gas) is shown…

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Q: What is the q (heat) for 140.2 g of PCl3 decomposing to form chlorine gas and elemental phosphorus?…

A: Decomposition reaction of PCl3 is ,∆H°rxn =1207 kJMass of PCl3 = 140.2 g Molar mass of PCl3 = 137.32…

Q: In the following reaction, what is the quantity of heat (in kJ) released when 1.81 moles of CH4 are…

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Q: A 4.77 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…

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Q: A 148.9-g sample of a metal at 74.0°C is added to 148.9 g H20 at 14.4°C. The temperature of the…

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Q: In the following reaction, how much heat is generated when 3.27 moles of CH« are burned? CH: (g) + 2…

A: The reaction is : CH4(g)  +  2O2(g)  →  CO2(g)  +  2H2O(g)       ∆H°=-802 kJ/mol Here, as we can…

Q: Historically, naphthalene was used as the main ingredient in mothballs and is easily recognized by…

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Q: If 250. g of aluminum is consumed in the reaction, how much heat (in kJ) could theoretically be…

A: 2 Al (s) + Fe2O3 (s) → 2 Fe (l) + Al2O3 (l)              ΔH = −848.0 kJ In the given reaction there…

Q: The reaction 3H2(g) + N2(g) → 2NH3(g) has an enthalpy of reaction of -92.6 kJ/mol. If 2 g of…

A: Nitrogen reacts with hydrogen to form ammonia. The equation for the balanced chemical reaction is…

Q: mass of carbon dioxide

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Q: In a coffee-cup calorimeter, 100 mL of 1.0 M NaOH and 100.0 mL of 1.0 M HCI are mixed. Both…

A: Molarity of NaOH = 1.0 M  Volume of NaOH solution = 100.0 mL = 0.100 L  Molarity of HCl = 1.0 M…

Q: Please answer these questions on your Page 7 (a) We place 88.8 g of a metal at 10.00°C in 444.4 g of…

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Q: Consider the reaction of hydrogen with sulfur to form hydrogen sulfide: 8H₂ (g) + S8 (s) → 8H₂S(g),…

A: The difference in the enthalpy of the products and reactants is known as the enthalpy change of the…

Q: propane (C:H8) produces 2220 kJ of = consumed. What mass in grams of eat 55.0 gal of bathtub water…

A: According to the question, the combustion of propane will produce 2220 kJ of energy per mole.  We…

Q: The highly exothermic thermite reaction, in which aluminum reduces iron(III) oxide to elemental…

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Q: A 6.55 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…

A: The total mass of a solution is the summation of the mass of solute and the mass of solvent. The…

Q: A student mixes 67.0 mL of a 2.01 M sodium hydroxide solution with 22.4 mL of 6.45 M hydrochloric g…

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Q: In the following reaction, what is the quantity of heat (in kJ) released when 3.91 moles of CH4 are…

A: One mole of methane react with oxygen and produced carbon dioxide and two mole of water

Q: Consider the following equation for the combustion of acetone (C3H6O), the main ingredient in nail…

A: Given, Equation of Combustion of acetone (C3H6O), C3H6O (l) + 4O2(g)  ➝ 3CO2(g) + 3H2O(g) ∆Hrxn =…