What minimum mass of CH4 is required to heat 80.00g of water by 30.00 degrees Celcius. Assume 100%  heating efficiency. For water Cs=4.18 J/gC Natural gas burns in air to form carbon dioxide and water, releasing heat. CH4 + 2O2 = CO2 + 2H2O Delta Hrxn=-802.3 kJ

Q: ) Determine the enthalpy change for this reaction:  2NaOH(s)+CO2(g)→Na2CO3(s)+H2O(l)

A: Given : We have predict the enthalpy change for the given reaction: 2NaOH(s)+CO2(g)→Na2CO3(s)+H2O(l)

Q: 4.78 x 10 kJ E) 1,040 kJ 51.Methanol (CH,OH) burns according to the equation 2CH,OH(I) +…

A: The given reaction is,

Q: Given that the molar enthalpy of combustion for propan-1-ol, C3H7OH(l), is –2008.6 kJ/mol,  what is…

A:

Q: An electrical heater is used to supply 210.0 J of energy to a 15.0 g sample of water, originally at…

A: Given:Heat energy (Q) = 210.0 J.Mass of water (m) = 15.0 g.Initial temperature of water = 295…

Q: 3.A 1.620 g sample of naphthalene, C10H$(s), is completely burned in a bomb calorimeter assembly and…

A: Given:  Mass of C10H8(s) = 1.620 g ∆T = 8.44°C Released heat = -5156 kJ/mol Standard data:  The…

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

A:

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: 5. Octane, C₂H(1) one of the major components of gasoline, can go through incomplete combustion…

A: C8H18(l) + 11O2(g) -----> 5CO2(g) + 3CO(g) + 9H2O(g) ∆H = -4225.1 KJ/mole

Q: Consider the following reactions:                  C2H6 (g)  +  7/2 O2 (g)  →  2 CO2 (g)  +  3 H2O…

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Q: Use the following information to determine the enthalpy for the reaction shown below. CS2(l) +…

A: The enthalpy of the reaction is calculate using Hess' law. This law states that regardless the…

Q: When a sample of Mg is combusted in a bomb calorimeter, 25.4 kJ of energy as heat is evolved. The…

A: Assuming the final temperature of water and bomb calorimeter in equilibrium is T. Hence the change…

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

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Q: An unknown sample of coal is burned in an apparatus with a calorimeter constant of 1.09 kJ/°C. When…

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Q: Using the information provided, determine the enthalpy (in kJ/mol) for the reaction 2 NH₃ (g) + 3…

A: The enthalpy of a reaction is the enthalpy change between products of the reaction and the reactants…

Q: The reaction between sodium metal and chlorine gas produces 822 kJ of heat energy for every chlorine…

A: GIven, Mass of Na = 4.595g

Q: The enthalpy change for the reaction: 2H2(g)+ O2(g) → 2H2O(g) is -483.6 kJ. Determine the enthalpy…

A: The enthalpy change for the reaction: 2H2(g)+ O2(g) → 2H2O(g) now, for the following reaction 4H2(g)…

Q: Consider the reaction of sodium metal and water. 2Na(s) + 2H20(1) → 2NaOH(aq) + H2 (g) AH = -369 kJ…

A: 2Na(s)+2H2O(l) --->2NaOH(aq)+H2(g) ∆H = -369KJ On reversing the direction of reaction, sign of…

Q: metal X =48.1g; specific heat capacity =0.228 J/C If metal X is heated to 95.1C and put into a…

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Q: Given the following hypothetical thermochemical equations:  2QR3 (g) + 2QX (g) → Q2R4 (g) + 2XQR…

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

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Q: Using the equations 2 H: (g) + O2 (g) → 2 H2O (1) AH° = -572 kJ/mol Ca (s) + ½ O2 (g) → CaO (s) AH°…

A: The first chemical reaction is, 2H2g+O2g→2H2Ol                 ∆H°=-572 kJ/mol......(1) The second…

Q: Titanium reacts with iodine to form titanium(III) iodide, emitting heat:2 Ti(s) + 3 I2(g)…

A: From the given chemical equation and data it is clear that  839 KJ energy is released from two moles…

Q: An electrical heater is used to supply 235.0 J of energy to a 15.0 g sample of water, originally at…

A: Given,15.0 g sample Energy of heater = 235.0 JInitial temperature = 295.0 K

Q: Acetylene, C 2 H 2 , is used in welding torches. It releases a lot of energy when burned in oxygen.…

A:

Q: A 138.9 g sample of an unknown metal at a temperature of 99.1 °C is added to 44.72 g of water at a…

A: Q = mC∆T

Q: The specific heat capacity of a particular type of pasta is 1.8 Jg·◦C. Suppose you toss 340 grams of…

A: A numerical problem based on heat energy released, which is to be accomplished.

Q: A chemist measures the enthalpy change AH during the following reaction: 2 Al(s) + Fe,O3(s)→Al,O3(s)…

A: The given reaction is  The reactions for which change in enthalpy is to be calculated are these.…

Q: Nitromethane (CH3NO2), sometimes used as a fuel in drag racers, burns according to the following…

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Q: Calculate enthalpy of reaction given reaction enthalpies for proposed steps in a process. K+(g) +…

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Q: A chemist measures the enthalpy change AH during the following reaction: C,H„0g(s)→2C0,(g) +…

A: The enthalpy change for the given reaction is given as follows- C6H12O6 (s) →2 CO2 (g) + 2 C2H5OH…

Q: What mass of natural gas (CH, ) must you burn to emit 276 kJ of heat? CH4 (9) + 202(g) → CO2(g) +…

A: CH4(g) + 2O2 (g)  --->  CO2(g) + 2H2O(g) ∆H°rxn= -802.3 kJ Since, because the Hrxn is negative,…