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help help help pls! 17. The value of AH° for the reaction below is -790 kJ/mol....
4) The value of AH for the reaction below is -790 kJ. The enthalpy change accompanying the reaction of 0.95 g of S is kJ. 2S (s) +302 (g) 2SO3 (g) sinoge E) -790 D-12 D) 23 B) 12 A)-23
please help and provide explanations! Section II. Short answer. (Record all answers on the answer sheet with the appropriate number of significant figures) 16. Consider a neutralization reaction in which KOH(aq) is mixed with H2SO4(aq) in a coffee-cup calorimeter. If 147.0 g of liquid in the coffee-cup calorimeter rises 8.30 °C, how much heat is released by the neutralization reaction in kJ? 17. The value of AHº for the reaction below is - 790 kJ/mol. What is the enthalpy change...
43) The value of for the reaction below is -790 kJ. The enthalpy change accompanying the reaction of 0.95 g of S is __________ kJ. 2S(s) + 3O2 (g) à 2SO3(g) A) 23 B) -23 C) -12 D) 12 E) -790 AH
The value of AH° for the reaction below is -790 kJ. The enthalpy change accompanying the reaction of 0.95 g of Sis KJ. 25 (s) + 302 (9) ► 2503 (9) Select one: a. 12 b. -12 C.-790 d. 23 .-23
help Using the Hess' law to calculate the enthalpy (kJ) of the reaction of the following reaction 2502 (g) + O2(g) → 2503 (g) by using the two given reactions below 25 (s) + 302 (g) → 2503 (g) AH = -790 kJ S (s) + O2 (g) → SO2(g) AH = -297 kJ 196 O-543 1087 0-1384 0-196
1) Enthalpy changes for the following reactions can be determined: AH=-91.8k N2(g) + 3 H2(g) → 2 NH (B) 4 NH(B) + 5 O2(g) → 4 NO(g) + 6H2O () H2(g) + O2 (g) → H20 (8) AH = -906.2 kJ AH = -241.8 kJ What is the enthalpy change for the following reaction? % N2(g) + O2(g) → NO(g) 2) Consider the following thermochemical equation: 2CH.(g)+70:(g)4CO2(g)+6H,0(1) AH--3120 kJ If 2.4 L of ethane (C2H6) at STP are reacted with...
Calculate the value of AH° for the reaction 2 C2H2 () + 502 () 4002) + 2 H20 (1) given the following thermochemical equations: AH° = - 242 kJ AH° = - 394 kJ H2(g) + 4202) → H20 (8) C(s) + O2(%) + CO2(8) 2 C(s) + H2(g) → C2H2 (6) H20 () → H30Ⓡ AH° = +227 kJ AH° = +44 kJ TO - 907 kJ 0 - 2602 kJ 0 - 2514 kJ - 1694 kJ
Question 8 Calculate AH (in kJ) for the combustion of acetaldehyde, 2CH3CHO (g) +502 (g) + 4CO2 (g) + 4H20 (1) given the following thermochemical equations: CH3CHO (g) + H2 (g) – CH3CH2OH (g) AH= -- 17 kJ (1) O2 (g) + H2 (g) - H20 (1) AH = 286 kJ (2) CH3CH2OH (g) + 302 (g) - →2CO2 (g) + 3H20 (1) AH = - 1368 kJ (3) -2198 1099 e +1368 1671 -3342
The standard enthalpy change for the following reaction is -704 kJ at 298 K. Al(s) + 3/2 Cl2(g) — AICI3(8) AH° = -704 kJ What is the standard enthalpy change for the reaction at 298 K? 2 AICI3(s) — 2 Al(s) + 3 Cl2(9) kJ The standard enthalpy change for the following reaction is 851 kJ at 298 K. 2 NaOH(s) —— 2 Na(s) + O2(g) + H2(g) AH° = 851 kJ What is the standard enthalpy change for this...
Determine the enthalpy change for CS20 + 302(g) + CO2(g) + 2SO2(g); AH= ? using the following three thermochemical equations, which will be referred to as reactions (A), (B), and (C). (A) 2C(s) + 202(g) 2002(g); AH= -787.0 kJ (B) C(s) + 25(s) → CS2(); AH= 87.9 kJ (C) SO2(g) → S(s) + O2(g); AH= 296.8 kJ 1. The enthalpy change for the unknown reaction is 2. Describe the action performed on each thermochemical reaction. Reaction (A) was Reaction (B)...