Suppose you have 1.25 moles of gaseous napthalene (C10H8) at T = 292 K. What is the average kinetic energy of one molecule of napthalene? (The molar mass of napthalene is 128 g/mol. You may assume that the gas molecules behave ideally.)

Q: Measurements show that the energy of a mixture of gaseous reactants increases by 246.kJ during a…

A: Given: Change in internal energy (∆U) = 246 kJ Work done (W) = 198 kJ

Q: (LO 87) The combustion of benzoic acid (AEcombustion = -3228 kJ/mol C₂H5O₂) can be used to determine…

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Q: Measurements show that the energy of a mixture of gaseous reactants decreases by 336.kJ during a…

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Q: Measurements show that the enthalpy of a mixture of gaseous reactants decreases by 174. kJ during a…

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Q: Measurements show that the enthalpy of a mixture of gaseous reactants decreases by 232. kJ during a…

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Q: The calibration of a calorimeter is done by using 13.00mL of 0.104M NaOH and 11.29mL of 0.125M HCl…

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Q: 250.0 mL of 0.300 M HCl is added to 250.0 mL of 0.300 M NaOH in a coffee cup calorimeter. The…

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Q: What is the energy change when the temperature of 13.9 grams of gaseous helium is decreased from…

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Q: A 55.5g sample of brass, which has a specific heat capacity of 0.375·J·g−1°C−1, is put into a…

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Q: Zinc metal reacts with hydrochloric acid according to the following reaction: % Zn (s) + HCI (aq) →…

A: The reaction given is, Given: Mass of Zn reacting = 0.9807 g. Concentration of HCl = 0.250 M Volume…

Q: Zinc metal reacts with hydrochloric acid according to the following balanced equation. Zn(s) +…

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Q: Measurements show that the energy of a mixture of gaseous reactants decreases by 362. kJ during a…

A: The objective of this question is to calculate the change in enthalpy of a gas mixture during a…

Q: 2C6H6() + 15 O2(g) – 12 CO2(g) + 6 H20(/) AH = -5.884 x 103 kJ - An unknown amount of C6H6(/) was…

A: Given 2C6H6(l) +15O2 (g) -> 12CO2 (g) + 6 H2O (l) Delta H = -5.884 × 103 KJ  For unknown amount…

Q: Measurements show that the enthalpy of a mixture of gaseous reactants increases by 219. kJ during a…

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Q: Measurements show that the energy of a mixture of gaseous reactants increases by 275. kJ during a…

A: Here we are given that, energy of a mixture of gaseous reactants increase by 275 kJ. Also 109 kJ of…

Q: A sample of a hydrocarbon is combusted completely inO2(g) to produce 21.83 g CO2(g), 4.47 g H2O(g),…

A: (a) Given: Mass of carbon dioxide=21.83 g Mass of water=4.47 g Heat=311 KJ Each molecule of CO2…

Q: A generic solid, X, has a molar mass of 83.3 g/mol. In a constant-pressure calorimeter, 17.2 g of X…

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Q: what is the importance of studying heat of neutralization reactions?  What is the basic theory of…

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Q: I need help with question 74

A: Simplest formula for the compound can be determined from the stoichiometry of reactants.

Q: Determine the total heat absorbed by the reaction, in kJ, if 2.50 g of O, is required to fully…

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Q: Aluminum chloride, a white powder, is an important chemical produced industrially by heating a…

A: “Since there are multiple questions and it is not mentioned that which one has to be solved so I am…

Q: 78. Under which conditions does nitrogen have the largest entropy per mole? N₂(s) at 50 K and 1 atm…

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Q: The distance between Sherbrooke and Montreal is 137km. However, a car driving between the two points…

A: Answer - State function - State function: The properties which depends only on initial and final…

Q: • If a coefficient in the balanced equation is 1, do not leave the answer box blank; put a 1 in the…

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Q: A sample of an ideal gas at 24.9 atm and 15.4 L is allowed to expand against a constant external…

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Q: What is kinetic energy of one mole of an ideal gas st 25C?

A: Kinetic energy = 3/2 RT                        R = 8.314 J mol-1 K-1                        T = 250C…

Q: sample of 3.00 mol of argon is heated from 25.00◦C to 100.00◦C, beginning at a pressure of 1.000 atm…

A: Given - - > Moles = 3.00 mol of argon T1=25.00°C =298 K T2=100°C=373 K Cv(argon) = 0.312 KJ/kg.K…