CH₂ONA, CH₂OH heat Na O :Br:0 H HH Br Na HH 8:0 CH₂

Consider the reaction below then answer the following questions. The molar mass of C3H8 = 16.01 g/mol, molar mass of O2 is 32.00 g/mol and the specific heat of water is 4.184 J/g•ºC   C3H8 (g) + 5 O2 (g) à 3 CO2 (g) + 4 H2O (l)    ∆H = -2220 kJ   Is this reaction an exothermic or endothermic reaction? ______   How much heat (in kJ) would be released if 7.25 O2 is allowed to react with excess C3H8?             How much C3H8, in grams, would be needed to release 325 kJ of heat? Assume C3H8 is allowed to react with excess O2 in this problem.

EtO 1. NaOEt, EtOH 2. CH3CH₂1 OEt H30+, Heat

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.