Using the appropriate bond energies, calculate the heat of reaction AH for the following reaction: H I 20 H 2H-H+ 0=0 You can find a table of bond energies by using the Data button on the ALEKS toolbar. Round your answer to the nearest kJ/mol. Note: For clarity, all lone pairs have been omitted from the molecular structures. 0 kJ mol X

Use table to calculate Delta H in kJ for the synthesis of hydrazine from ammonia 2NH3 (g) + Cl2 (g) ——> N2H4 (g) + 2HCl (g)

ORT SHEET Heat of Neutralization EXPERIMENT elemsboomfchg lom 12 A. Heat Capacity of Calorimeter 1. Temp. of calorimeter and water before mixing 2. Temp. of warm water °C 22.0 39,0 30.3 3. Maximum temp. determined from your curve °C 4. Heat lost by warm water (temp decrease x °C 50.0 g x 4.184 J/K-g) = 02), 5. Heat gained by cooler water (temp. increase x 50.0 g x 4.184 J/K-g) = 30,3 22.0)x 13626J s0.0gmpi S0.0gy 6. Heat gained by the calorimeter [(4) – (5)] = 7. Heat capacity of calorimeter: heat gained by the calorimeter temperature increase J/K 3. Heat of Neutralization of HCl-NaOH 22.2 22.2. °C . Temp. of calorimeter and NaOH Temp. of HCI AT determined from your curve after adding HC1 °C to the NaOH Heat gained by solution (temperature increase x ON 100 g x 4.184 J/K-g) = 9977.8J %3D Heat gained by calorimeter (temperature increase x heat capacity of calorimeter) = J %3D Total joules released by reaction [(3) + (4)] = Tight O 2018 Pearson Education, Inc.

grade 12 chem: Briefly describe four DIFFERENT ways to determine the enthalpy change (ΔH) of a reaction

Calculate the enthalpy of the reaction below (AHrxn, in kJ) using the bond energies provided. H₂(g) + CH3CH₂C(=O)H → CH3CH₂CH₂OH Single Bond H C N O Multiple Bonds H 432 411 346 386 459 358 C **All values in kJ/mol** 305 167 201 C=C C=C 835 N O 602 C=O C=O C=N C=N 887 615 O=O N=N 142 799 1072 494 942

Question 7 of 8 O Macmillan Learning Alkane halogenation is a two-step reaction, as shown in the image. Using the table of bond dissociation energies, calculate the enthalpy of each step and the enthalpy of the overall reaction. Bond Dissociation Energies (for A-B Bond broken AH (kJ/mol) Bond broken AH (kJ/mol) Bond broken AĦ (kJ/mol) H-H 436 400 366 292 193 Step 1 H3C- Step 2 H3C- CH3 CH3 CH3 CH3 Overall reaction H + + Br₂ CH3 I H3C- CH3 -H + Br₂ (CH₂)₂C-H (CH3)3C-Br H3C H3C A H3C- ■ CH3 CH3 + CH3 CH 3 + -Br CH3 F CH3 ■ B) + HBr + Br: -Br + HBr H-Br Br-Br ΔΗ = AH = AH = kJ/mol kJ/mol kJ/mol

Using the table of bond enthalpies in your textbook, predict A-H for the following reaction. Express your answer in kJ/mol. H₂C=CH₂ + Cl₂ → CI-CH₂-CH₂-CI Answer:

Using the following bond enthalpies H-H F-F H-F 436 kJ/mol 157 kJ/mol 568 kJ/mol calculate AH for the reaction: H-H(g) + F-F(g) O-543 kJ 543 kJ 25.0 kJ O-1090 kJ O-25.0 kJ 2 H-F(g)

Calculate the heat of reaction AH for the following reaction: 2 HCl(g) + Br,(g)→2 HBr(g) + Cl,(g) You can find a table of bond energies by using the Data button on the ALEKS toolbar. Round your answer to the nearest kJ/mol. kJ ? mol

Using the appropriate bond energies, calculate the heat of reaction AH for the following reaction: 1 61010 mol CI-C-CI+ H-H You can find a table of bond energies by using the Data button on the ALEKS toolbar. Round your answer to the nearest kJ/mol. Note: For clarity, all lone pairs have been omitted from the molecular structures. c-c-c + H-CI -4-0 H X ?