Which combination will give you the enthalpy change for the hydrogenation of ethene to ethane, AH3? AH, 2C (s) + 3H, (g) ΔΗ + C,H, (g) + H, (g) C,H, (g) ΔΗ, + 20, (g) AH, + 20, (g) 200, (g) + 3H, (g)

Q: 3- Calculate the molar enthalpy change when tungsten is heated by 15 K.

A: From standard sources we get, the molar heat capacity of tungsten is 24.2 J/mol K

Q: Zn metal reacts with hydrochloric acid according to the balanced equation Zn(s) + 2 HCl(aq)…

A: Given data:

Q: The combustion of 1.00 mol of glucose (C6H12O6) liberates 2820 kJ of heat. If 1.14 g of glucose is…

A: Mass of glucose = 1.14 g Molar mass of glucose = 180 g/mol Mass of water = 744 g Temperature change…

Q: The combustion of 1.00 mol of glucose (C6H12O6) liberates 2820 kJ of heat. If 1.13 g of glucose is…

A:

Q: The following equation represents the combustion of ethylene glycol, (CH2OH)2 (CH2OH)2 (l) + 2.5O2…

A:

Q: When 1.535 g of methanol (CH3OH) was burned in a constant-volume bomb calorimeter, the water…

A: Introduction The heat released can be calculated by applying the following formula: q = mc∆T

Q: Calculate the standard enthalpy of combustion for the following reaction:  C6H12O6(s) + 6O2(g) --->…

A: Introduction: The enthalpy of combustion is the amount of energy released when one mole of a…

Q: Calculate the enthalpy of formation of ethyne, CHCH, given that the enthalpies of combustion of…

A: We have to find the ∆H

Q: The standard enthulpies of formation of ethyne, Czl12, carbon dioxide, CO2 and wnter, H2(), are…

A: Change in enthalpy = (sum of enthalpies of product) - ( sum of enthalpies of reactants) Delta Hfor…

Q: using the standard molar enthalpies of formation here below. Give the answer in kJ/mol-rxn (write…

A:

Q: H20(1) O2(g) C2H5OH() -285.8 What is the standard enthalpy of formation of ethanol C2H5OH ?

A: 1) Answer is  b) -277.6 KJ/mol

Q: 4. a) What is the enthalpy change for a system undergoing a volume change of 500.0 mL to 25.0mL…

A: Given that -  Volume change of a system, ∆V = Vfinal - Vinitial =  25 - 500 = -475 Pressure ,P = 435…

Q: The standard heat of combustion of liquid methyl cyclopentane, C6H12(l),C6H12(l), was measured to be…

A:

Q: Unfortunately I don't get the answer for this one....I've calculated several times already

A:

Q: The enthalpy change for the oxidation of vinylcyclopropane, C3 Hs, is measured by calorimetry. C,Hs…

A: Given: Standard enthalpy change of CO2(g) = -393.509 kJ/mol Standard enthalpy change of O2(g) =0…

Q: Which of the following scenes depict the process of an increase in the enthalpy?     Stirring a…

A: Answer: Enthalpy of the system decreases when process is exothermic and it loses heat and enthalpy…

Q: In a calorimetry experiment, O.0242 g of calcium metal are added to 20.7 mL of 0.405 M hydrochloric…

A: Given: mass of Ca(s) = 0.0242 g Concentration of HCl = 0.405 M Volume of HCl = 20.7 mL density of…

Q: 5.25mL of a 1.35M solution of sodium hydroxide is combined with 6.90mL of a 810.mM solution of…

A: The enthalpy of neutralization is 7.1790 kcal/mol.

Q: hydrobromic acid, HBr(aq), is added to a 100.0 mL solution of 0.300 M potassium hydroxide, KOH(aq),…

A: Molarity of HBr = 0.100 M Volume of HBr = 300 mL = 0.30 L Moles of HBr = M × V     = 0.10 × 0.30 =…

Q: What is the change in internal energy (in J) of a system thatreleases 675 J of thermal energy to its…

A: Thermodynamics is the branch of chemistry which deals with the study of heat and other forms of…

Q: If 0.315 moles of hexane (C6H14) are burned in a bomb calorimeter containing 5.65 liters of water,…

A: Specific heat capacity is the amount of heat that is required to rise a temperature of 1 kg…

Q: Calculate the standard enthalpy for the combustion of liquid octane, based upon the balanced…

A: Calculate the standard enthalpy of combustion of octane ?

Q: When 15.0 mL of 3.00 M NaOH was mixed in a calorimeter with 13.0 mL of 3.00 M HCl, both initially at…

A:

Q: 9. Given the following enthalpy of reactions: (1) C:H«(g) + /½ O:(g) → 2 CO:(g) + 3 H20(1); AH =…

A:

Q: What is the standard enthalpy change for the combustion of 3.50 mol of methanol? 2CH 3OH(l) + 3O 2 →…

A: Standard enthalpy of combustion of methanol is -715 kJ/mole

Q: 3. A 10.0 g sample of pure acetic acid, CH3CO2H, is completely burned. The heat released warms 2.0 L…

A:

Q: The combustion of methanol is described by the following equation. 2 CH3OH (l) + 3O2 (g) → 2 CO2…

A: The combustion reaction of methanol is  2 CH3OH (l) + 3O2 (g) → 2 CO2(g) + 4 H2O (l), ΔH = −1454 kJ…

Q: A 0.05mol sample of methane, CH4, is combusted under a calorimeter containing 250mL of H20. If the…

A:

Q: 2. What is the enthalpy of combustion of butane in kJ mol-1? 2C4H19(g) + 1302(g) 8CO2(g) + 10H2O(1)

A: Target reaction is    2 C4H10 (g)  + 13 O2 (g )    →  8 CO2 (g) + 10 H2O (l)  △H c = ?

Q: 3. A coffee-cup calorimeter is used to determine the heat of reaction for the acid-base…

A:

Q: A student mixed 50 ml of 1.0 M HCl and 50 ml of 1.0 M NaOH in a coffee cup calorimeter and…

A: The molar enthalpy for the second trial will be -54 KJ/mol

Q: the standard enthalpy of combustion of octane, -5,430kj/mol, applies to the following reaction…

A: C8H18 + 252O2   →8CO2 +  9H2O                 ∆H°=-5,430KJ/mola) 1 mole of combustion ocatne , takes…

Q: Calculate the enthalpy of combustion of 1 mol decane, C10H22, (l), to form CO2 and H2O. ∆Hf0 for…

A: During the combustion of one mole of any component/substance the energy amount that gets released in…

Q: Write reactions for which the enthalpy change will be (Be sure to specify states such as (aq) or…

A: 1 ∆H°f solid zinc oxide       2zns +O2g→2znOs  2 the standard enthalpy of combustion of liquid…

Q: The mean bond enthalpies of the C-C , C-H, C=O, and O-H bonds are 348,412,743, and 463 kJ mol-1,…

A:

Q: 5.4 The contents of the closed box in each of the following illustra- tions represent a system, and…

A: The first law of thermodynamics describes that energy can neither created nor destroyed, it can be…

Q: 2. Calculate the enthalpy change for the combustion of 35.5 g gaseous propane (C3H8). C3H8(g) + 5…

A: The amount of heat released when 1 mole of a substance undergoes combustion to form carbon dioxide…

Q: The combustion of 1.00 mol of glucose (C6H12O6) liberates 2820 kJ of heat. If 1.13 g of glucose is…

A: Answer: Molar mass of glucose is 180.156g/mol Given mass of glucose is 1.13g Since, number of moles…

Q: When 50.0 mL of 1.00 M HCl(aq) and 50.0 mL of 1.00 M NaOH(aq), both at 22.0 °C, are added to a…

A: Volume of HCl solution      = 50 mL Volume of NaOH solution = 50 mL Molarity of HCl solution    = 1…

Q: Ethylene glycol, HOCH2 CH,OH, is used as antifreeze. It is produced from ethylene oxide, C2H4O, by…

A:

Q: Ethylene glycol, HOCH2CH2OH, is used as antifreeze. It is produced from ethylene oxide, C2H4O, by…

A:

Q: If 9.5 grams of C3H8O was burned to change the temperature of 31.5 mL of water from 12 to 19.9…

A:

Q: The standard enthalpies of combustion of formaldehyde, H2C=O(g), and formic acid, HCOOH(1), are -563…

A:

Q: The combustion of 1.00mol of glucose (C6H12O6) liberates 2820 kJ of heat. If 1.64g of glucose is…

A:

Q: In a generic chemical reaction involving reactants A and B and products C and D, aA + 6B+cC + dD,…

A: The reaction taking place is given as, And the standard heat of formation data given is,

Q: E2C.2(b) The standard enthalpy of formation of phenol is -165.0kJ mol. Calculate its standard…

A: Given: Standard enthalpy of formation of phenol = -165.0 kJ/mol The combustion of a compound gives…

Q: Cyclopentane, C5H10, has an enthalpy of combustion of –3292 kJ per mole of cyclopentane.  What mass…

A: Given: Enthalpy of combustion of cyclopentane ∆Hc is -3292 kJ/mol. The amount of heat released is…