How many kilojoules of heat are released when 38.2 g of CH4 (g) reacts completely with O2 (g) to form CH3OH(g) at constant pressure?

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=…

A:

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: Given the thermochemical equation, calculate the heat evolved (in kJ) when 118 g of SO2 (molar mass…

A: Given: The thermochemical reaction is as follows: 2SO2  +  O2 ------> SO3              H=-198…

Q: What mass of methane must be burned to release 185 kJ of heat?

A: Given , CH4(g) +2O2(g) →CO2(g) +2H2O(g)      ∆Hrxn=-890 kJmol

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

A: Combustion is burning of fuels in the presence of oxygen. It is a highly exothermic reaction and…

Q: Sucrose (C₁₂H₂₂O₁₁, table sugar) is oxidized in the body by O₂ via a complex set of reactions that…

A: Given: The oxidation of sucrose (C12H22O11) in the body using O2 through a complex set of reactions,…

Q: From the given chemical equation, solve for the heat evolved (in kJ) when 78.96 g of carbon dioxide…

A: Number of mols = weight/ molecular weight

Q: How much heat is released when 4.50 g of methane gas is burned in a constant-pressure system?

A: Given: Mass of methane = 4.50g To find: The amount of heat released

Q: When a 0.740-g sample of trinitrotoluene (TNT), CH,N,0, Is burned in a bomb calorimeter, the…

A:

Q: How much heat is evolved when 453.5 g of ammonia (NH3) is produced according to the following…

A: Given Reaction is - N2 (g) + 3H2 (g) → 2NH3 (g)                  ΔH= -91.8 kJ

Q: A system releases 689 kJ of heat and does 105 kJ of work on the surroundings. ▾ Part A What is the…

A:

Q: An iron bar of mass 869 g cools from 94°C to 5°C. Calculate the heat released (in kilojoules) by the…

A: Q = m . s . ∆T

Q: How much energy is required to heat 120.0 grams of water from 2.0oC to 24.0oC? The specific heat of…

A: Given: mass of water, m=120.0 ginitial temperature of water, T1 = 2.0∘CFinal  temperature of water,…

Q: Consider the combustion of propane: C;H3 (g) +502 (g)- 3CO2(g) +4H20(1) AH = -2221 kJ A balloon is…

A: Answer :-  Mass of propane = 4292.4 g

Q: Consider a reaction occuring in a calorimeter. The heat produced by this reaction is symbolized by…

A: A calorimeter is used for measuring the heat of a chemical reaction. In calorimeter, an exothermic…

Q: Consider the following thermochemical equation for the combustion of acetone, C3H6O, the main…

A: The combustion reaction given is  C3H6O (l) + 4 O2 (g) → 3 CO2 (g) + 3 H2O (g)…

Q: 3) The addition of CO2 to a solution containing calcium ions can lead to the formation of insoluble…

A:

Q: Propane is a common fuel used in portable stoves. If a gas canister contains 0.283 dm3 of propane,…

A: Given, C3H8 (g) + 5 O2 (g) ➝ 3 CO2 (g) + 4 H2O (g)              ∆H = -2221KJ/mol Here, (-) sign…

Q: When 1.23g C6H6(l) are burned, 51.5KJ of heat are released.  Calculate the enthalpy for this…

A: Heat of formation of the compound can be calculated from the reaction and enthalpy of the reaction .…

Q: How much heat (in kJ) is required to raise the temperature of a 525.0 mL sample of water from 22.1 C…

A: The heat required to raise the temperature is directly proportional to the mass of sample and the…

Q: The reaction for the combustion of propane is…

A: In the given question, a reaction is given in which we have to determine the amount of heat released…

Q: N2(g) + 3 H2(g) → 2 NH3(g);  ΔH = −91.8 kJ How much heat is released when 1.521 ✕ 104 grams of…

A: Step 1: Here, for the given process, the heat released in formation of 2 moles of ammonia is given…

Q: A 31.74-g lead (Pb) sample at 71.58°C is placed in a constant-pressure calorimeter of negligible…

A: Given, A 31.74-g lead (Pb) sample at 71.58°C is placed in a constant-pressure calorimeter of…

Q: How much would the temperature of a 61.9 gram sample of grain alcohol increase if it absorbs 305…

A: Given the mass of alcohol is 6.19 grams heat energy Q=305 Joules Suppose the alcohol is ethanol ( As…

Q: Given that 154.81 g of solution increased in temperature by 4.82 °C, how much heat, in J, was gained…

A:

Q: 1. In an experiment to determine the Specific Heat of Nickel, a 66.0 g sample of Nickel metal is…

A: Answer :-  The specific heat of Nickel determined by the experiment = 0.544 J/g.°C…

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: Iron reacts with oxygen to form one mole iron (III) oxide releasing 826 kJ of heat. How much heat is…

A:

Q: Chargers for cell phones get warm while they are being used. Some of the energy that they are using…

A: The solution is given below -

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

A: Acetone reacts with oxygen to form carbon dioxide and water. The combustion reaction of acetone is…

Q: How much heat will be released (AH) if 0.5263 mol of NH3 are mixed with 0.20 mol of O, in the…

A: Balanced equation: 4NH3 (g) + O2 (g) --------->  2N2H4 (g)  +  2H2O (g)    ∆H° = -286 kJ/mol This…

Q: How many moles of H, are required to produce -4551 kJ of heat in the following reaction? N, (g) + 3…

A:

Q: How much heat is required to raise the temperature of 1.5 x 103 g of water from 45F to 130.F? The…

A: The temperature conversation formula is

Q: How much heat is released in kJ when 2.50 mol of O2 reacts completely with methane?

A: The combustion of methane reaction is given as: CH4(g) + 2O2 (g) → CO2 (g) + 2H2O (l)   ΔH = −890.3…

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 =…

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

A:

Q: CH4 + 202 → CO₂ + 2H₂O AH-890kJ/mol How much heat is released when 2.7 g of methane gas is burned in…

A: Here we are required to find heat released when 2.7 gm of methane is burnt

Q: What is the resulting temperature in celsius when 35 g of water at 75 degrees celsius is mixed with…

A: Given, 35 g of water at 75 degrees celsius is mixed with 15 g of waterat 15 degrees celsius.The…

Q: A 29.00 g sample of metal alloy is heated to 92.6 °C; then placed in 55.23 g of water in an…

A:

Q: How many kilojoules of heat are produced when 34.0 g of Fe2O3 reacts with an excess of CO according…

A: In this question, we want to determine the value of heat produced in kJ unit. How we can determine,…

Q: 2A + 3B → C       ΔHrxn = -125 kJ  Determine the amount of heat emitted when each of the following…

A: The enthalpy of reaction is based on the molar quantities of reactants that is given by the…

Q: When 2 mol of potassium chlorate crystals decompose to potassium chloride crystals and oxygen gas at…

A: A thermochemical equation for a given reaction can be defined as the balanced stoichiometric…

Q: How much heat is released by a system when 45 J of work is done on it to decrease its energy to 23…

A: The objective of the question is to calculate the heat released by the system when : Work done (∆W)…

Q: specific heat of gold is 0.129J/g C. what is molar heat capacity of gold?

A: The Question is about to calculate the Molar Heat Capacity of Gold -

Q: How many kilojoules of heat are produced when 34.0 g of Fe,O3 reacts with an excess of CO according…

A:

Q: A piece of solid substance weights 4.0 g, and requires 150 J to increase its temperature from 30.0…

A: The certain heat energy amount that is applicable in the enhancement of substance's temperature per…

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: If 30.0 g H20 at 85.0°C is mixed in a coffee-cup calorimeter with 15.0 g H20 at 20.0°C, what is the…

A: Heat produced or absorbed by water = mass of water x specific heat of water x temperature difference

Q: A gas expands and does 25.6 J of work on the surroundings. At the same time, the gas absorbs 89.6 J…

A: Solution W = 25.6J Since work is done by the system on the surrounding q = 89.6J Heat absorbed that…