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culate the number of moles of solute required to create a...
help pt) A sample of 1.0 mol of liquid octane C8H18(1) undergoes combustion accord 5. (10...
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pt) A sample of 1.0 mol of liquid octane C8H18(1) undergoes combustion accord 5. (10 pt) A C3H18(0) + O2(g) → 8 CO2(g) + 9 H2O(l) Using the standard enthalpies of formation given calculate the change in enthalpy in kJ/mol associated with the combustion of 1.0 mol of C8H18(1) at 1.0 bar pressure and 25 °C. Substance AH® (kJ/mol) C8H18() -249.9 CO2(g) -393.51 H2O) -285.83
can you do the 7 and 9 ? can you also show and explain me step...
can you do the 7 and 9 ? can you also show and explain
me step by step?
D. 49.6 kJ E. 57.3 kJ 7. Butane (C4H10) undergoes combustion in excess oxygen to generate gaseous carbon dioxide and water. Given AH° [C4H10(g)] = -124.7 kJ/mol, AH° [CO2(g)] = -393.5 kJ/mol, AH [H2O(g)] = -241.8 kJ/mol, how much energy is released (kJ) when 8.30 g of butane is burned? Combustion of butane: 2 CH2(g) + 13 O2(g) → 8 CO2(g) +...
Freezing points are lowered as a function of the number of moles of solute particles per...
Freezing points are lowered as a function of the number of moles of solute particles per kilogram of solvent. This is expressed mathematically with the following equation ATt Xkxi (mgolvending) where AT, is the amount by which the freezing point is lowered, Toute is the number of moles of solute, m ening is the mass of the solvent (in kilograms). ke is the freezing point depression constant which is specific to the solvent, and, i is the number of particles...
can you do all of them please 4 Using the following thermochemical equation, determine the amount...
can you do all of them please
4 Using the following thermochemical equation, determine the amount of heat produced per kg of CO2 formed during the combustion of benzene (C6H6). 2 C6H6()+15 02(g)12 CO2(g ) + 6 H20(g) A) 1.43 x 105 kl/kg CO2 B) 2.30x 104 kl/kg CO2 AH"xn-6278 kJ C) 4.34 x 104 kl/kg CO2 D) 1.19x 104 kl/kg CO2 E) 8.40x 105 kl/kg CO2 48) Using the following equation for the combustion of octane, calculate the amount...
Problem 3 please I'm not understanding. Please tell how you got the answer step by step...
Problem 3 please I'm not understanding. Please tell how
you got the answer step by step and the equation used !
Thanks
Date 1. Calculate AE for a system undergoing an endothermic process in which 25.3 kJ of heat flows and where 4.6 kJ of work is done on the system. 2. Calculate the work associated with the compression of a gas from 52 L. to 33 L at a constant external pressure of 16 atm. 3. How many grams...
Question 6 The molarity of a solution can be determined from o the number of mmoles...
Question 6 The molarity of a solution can be determined from o the number of mmoles of solute per milliliter of solution. o the number of moles of solute per kilogram of solution. o the number of moles of solute per kilogram of solvent. o the number of moles of solute per liter of the solvent D Question 7 Hydrazine, N2H4, is a liquid used as a rocket fuel. It reacts with oxygen to yield nitrogen gas and water. N2H4(lig)...
the enthalpy of combustion of CH4(g) to make H2O(l) and CO2(g) is -2340 kJ mol-1. The...
the enthalpy of combustion of CH4(g) to make H2O(l) and CO2(g) is -2340 kJ mol-1. The enthalpy of combustion of CH2(g) to make H2O(l) and CO2(g) is -2760 kJ mol-1. The enthalpy of formation of H2O(l) is -286 kJ mol-1. All the data are for 298 K. The heat capacities for O2(g), CHA(8), CH3(g), H2O(l) and CO2(8) are 29, 61, 71, 75 and 37 JK"mor", respectively. Deduce a) 4U298 for the combustion of C4H8(g). 5) AH for the combustion of...
rele the best answer and mark on the Scantron card.- Four points each. 100 ponts 1)...
rele the best answer and mark on the Scantron card.- Four points each. 100 ponts 1) Determine the percent yield of a reaction that produces 28.65 g of Fe when 50.00 g of Fez03 react 1) with excess Al according to the following reaction. FezO3(s)+2 Al(s) - Al2O3(s)+2 Fe(s) A) 81.93 % B) 57.30 % C) 20.02 % D) 28.65 % E) 61.03 % 2) Sodium metal reacts with water to produce hydrogen gas and sodium hydroxide according to the...
How do you do these problems? I got all of them wrong and don't understand why....
How do you do these problems? I got all of them wrong and
don't understand why.
- 10. Which of the changes will increase the value of K, for the reaction? 2 SO2(g) + O2(g) - 2 SO3(g) AH = -200 kJ/mol A. Lowering the temperature B. Increasing the pressure (CCAdding 02 D. Removing SO, 3. Which reaction describes why the pH is not 7 for the dissolution of NaNO2 in water? ADNa+ + 2 H2O = NaOH + H2O*...
step by step please 1/1 pts Question 12 Thermodynamic Quantities for Selected Substances at 298.15 K...
step by step please
1/1 pts Question 12 Thermodynamic Quantities for Selected Substances at 298.15 K (25°C) Substance ΔΗ°F (kJ/mol) AGOF (kJ/mol S (J/K- mol) 1.88 2.84 2.43 5.69 C (s, diamond) C(s. graphite) C2H2(g) C2H4 (8) C2H6 (g) CO(g) CO2 (g) H2(g) O2(g) H2O(0) 226.7 52.30 -84.68 -110.5 -393.5 0 0 -285.83 209.2 200.8 68.11 219.4 -32.89 229.5 -137.2 197.9 -394.4 213.6 0 130.58 0 205.0 -237.13 69.91 The value of AH°for the catalytic hydrogenation of acetylene to ethane,...
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pt) A sample of 1.0 mol of liquid octane C8H18(1) undergoes combustion accord 5. (10 pt) A C3H18(0) + O2(g) → 8 CO2(g) + 9 H2O(l) Using the standard enthalpies of formation given calculate the change in enthalpy in kJ/mol associated with the combustion of 1.0 mol of C8H18(1) at 1.0 bar pressure and 25 °C. Substance AH® (kJ/mol) C8H18() -249.9 CO2(g) -393.51 H2O) -285.83
can you do the 7 and 9 ? can you also show and explain
me step by step?
D. 49.6 kJ E. 57.3 kJ 7. Butane (C4H10) undergoes combustion in excess oxygen to generate gaseous carbon dioxide and water. Given AH° [C4H10(g)] = -124.7 kJ/mol, AH° [CO2(g)] = -393.5 kJ/mol, AH [H2O(g)] = -241.8 kJ/mol, how much energy is released (kJ) when 8.30 g of butane is burned? Combustion of butane: 2 CH2(g) + 13 O2(g) → 8 CO2(g) +...
Freezing points are lowered as a function of the number of moles of solute particles per kilogram of solvent. This is expressed mathematically with the following equation ATt Xkxi (mgolvending) where AT, is the amount by which the freezing point is lowered, Toute is the number of moles of solute, m ening is the mass of the solvent (in kilograms). ke is the freezing point depression constant which is specific to the solvent, and, i is the number of particles...
can you do all of them please
4 Using the following thermochemical equation, determine the amount of heat produced per kg of CO2 formed during the combustion of benzene (C6H6). 2 C6H6()+15 02(g)12 CO2(g ) + 6 H20(g) A) 1.43 x 105 kl/kg CO2 B) 2.30x 104 kl/kg CO2 AH"xn-6278 kJ C) 4.34 x 104 kl/kg CO2 D) 1.19x 104 kl/kg CO2 E) 8.40x 105 kl/kg CO2 48) Using the following equation for the combustion of octane, calculate the amount...
Problem 3 please I'm not understanding. Please tell how
you got the answer step by step and the equation used !
Thanks
Date 1. Calculate AE for a system undergoing an endothermic process in which 25.3 kJ of heat flows and where 4.6 kJ of work is done on the system. 2. Calculate the work associated with the compression of a gas from 52 L. to 33 L at a constant external pressure of 16 atm. 3. How many grams...
Question 6 The molarity of a solution can be determined from o the number of mmoles of solute per milliliter of solution. o the number of moles of solute per kilogram of solution. o the number of moles of solute per kilogram of solvent. o the number of moles of solute per liter of the solvent D Question 7 Hydrazine, N2H4, is a liquid used as a rocket fuel. It reacts with oxygen to yield nitrogen gas and water. N2H4(lig)...
the enthalpy of combustion of CH4(g) to make H2O(l) and CO2(g) is -2340 kJ mol-1. The enthalpy of combustion of CH2(g) to make H2O(l) and CO2(g) is -2760 kJ mol-1. The enthalpy of formation of H2O(l) is -286 kJ mol-1. All the data are for 298 K. The heat capacities for O2(g), CHA(8), CH3(g), H2O(l) and CO2(8) are 29, 61, 71, 75 and 37 JK"mor", respectively. Deduce a) 4U298 for the combustion of C4H8(g). 5) AH for the combustion of...
rele the best answer and mark on the Scantron card.- Four points each. 100 ponts 1) Determine the percent yield of a reaction that produces 28.65 g of Fe when 50.00 g of Fez03 react 1) with excess Al according to the following reaction. FezO3(s)+2 Al(s) - Al2O3(s)+2 Fe(s) A) 81.93 % B) 57.30 % C) 20.02 % D) 28.65 % E) 61.03 % 2) Sodium metal reacts with water to produce hydrogen gas and sodium hydroxide according to the...
How do you do these problems? I got all of them wrong and
don't understand why.
- 10. Which of the changes will increase the value of K, for the reaction? 2 SO2(g) + O2(g) - 2 SO3(g) AH = -200 kJ/mol A. Lowering the temperature B. Increasing the pressure (CCAdding 02 D. Removing SO, 3. Which reaction describes why the pH is not 7 for the dissolution of NaNO2 in water? ADNa+ + 2 H2O = NaOH + H2O*...
step by step please
1/1 pts Question 12 Thermodynamic Quantities for Selected Substances at 298.15 K (25°C) Substance ΔΗ°F (kJ/mol) AGOF (kJ/mol S (J/K- mol) 1.88 2.84 2.43 5.69 C (s, diamond) C(s. graphite) C2H2(g) C2H4 (8) C2H6 (g) CO(g) CO2 (g) H2(g) O2(g) H2O(0) 226.7 52.30 -84.68 -110.5 -393.5 0 0 -285.83 209.2 200.8 68.11 219.4 -32.89 229.5 -137.2 197.9 -394.4 213.6 0 130.58 0 205.0 -237.13 69.91 The value of AH°for the catalytic hydrogenation of acetylene to ethane,...
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