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Enthalpy if formation data is taken from standard text, if it's being provided to you differently, you can change accordingly.
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gu3eous Caide ahd liquid gascods Calon dioxide ahd liquid water. (5 pts.) How much heat is release per mole of ethanol combusted when the reaction is carried out at A) standard conditions? (5 pts.) i...
When styrene C8H8 burns in oxygen to form carbon dioxide and liquid water under standard-state conditions...
When styrene C8H8 burns in oxygen to form carbon dioxide and liquid water under standard-state conditions at 25°C, 42.62 kJ are released per gram of styrene. Find the standard enthalpy of formation of styrene at 25°C. (Given: ΔH°f[CO2(g)] = –393.5 kJ/mol, ΔH°f[H2O(l)] = –285.8 kJ/mol)
Question 16 5 pts The following reaction was carried out in a bomb calorimeter. The quantity...
Question 16 5 pts The following reaction was carried out in a bomb calorimeter. The quantity of heat transferred (q) for the reaction is -106 kJ. How much work is done by the system? CH4 (8) + 45 (s) – CS2() + 2H2S (8) +106 kJ Cok insufficient information in given to solve the question 106 kJ
5. (20 pts) Consider the following reaction OF2(g) + H2O(g) ---> 2 HF(g) + O2(g) AH.(kJ/mole) -318 kJ/mole (a) U...
5. (20 pts) Consider the following reaction OF2(g) + H2O(g) ---> 2 HF(g) + O2(g) AH.(kJ/mole) -318 kJ/mole (a) Using this information along with data in the appendix of your textbook, calculate AH;(OF,(8)) in kJ/mole at 25°C. (b) If 15.0 g of OF2(g) and 10.0 g of H2Og) react, how much heat, expressed in kJ is released? Hint: First calculate the limiting reagent. 6.(20 pts) Consider two Styrofoam coffee cups. If cup #1 contains 102.0 mL of water at 81.8°C...
Question 5 5 pts How much heat will be released when 350 g NH3(g) changes from...
Question 5 5 pts How much heat will be released when 350 g NH3(g) changes from a gas to a a liquid? Use one of the values below in your calculation (you will need to determine which one based on the problem given). AHvap kJ/mol = 23.3 AH fus kJ/mol = 5.66 478.86 kJ 116.32 kJ O 73.69 kJ 354.67 kJ
5. Question 2 1 pts Suppose you are investigating the reaction: M(s) + 2 HCl(aq) →...
5.
Question 2 1 pts Suppose you are investigating the reaction: M(s) + 2 HCl(aq) → MCl2(aq) + H2(g). You weigh out a 0.202 gram piece of metal and combine it with 62.2 mL of 1.00 M HCl in a coffee-cup calorimeter. If the molar mass of the metal is 48.51 g/mol, and you measure that the reaction absorbed 111 J of heat, what is the enthalpy of this reaction in kJ per mole of limiting reactant? Enter your answer...
1.) The specific heat of a certain type of metal is 0.128 J/(g⋅∘C). What is the...
1.) The specific heat of a certain type of metal is 0.128 J/(g⋅∘C). What is the final temperature if 305J of heat is added to 41.7 g of this metal, initially at 20.0 ∘C? 2.) When 1723 J of heat energy is added to 42.3 g of hexane, C6H14, the temperature increases by 18.0 ∘C. Calculate the molar heat capacity of C6H14 3.) Liquid sodium is being considered as an engine coolant. How many grams of liquid sodium (minimum) are...
1. How much heat is needed to raise the temperature of 1.50 g of aluminum metal from...
1. How much heat is needed to raise the temperature of 1.50 g of aluminum metal from 23.2 °C to 30.5 °C? (Specific heat capacity of aluminum is 0.90 J/g-K). 2. Given the following thermochemical equation: DH = -1107 kJ How many kJ of heat are released when 15.75 g of Ba(s) reacts completely with oxygen to form BaO(s)? 3. Mothballs are composed primarily of the hydrocarbon naphthalene (C10H8). When 1.25 g naphthalene is burned in a bomb calorimeter, the temperature rises from 25.25...
Lab 9 Heat of Reaction OBJECTIVE: To experimentally determine the heat of reaction for two exothermic...
Lab 9 Heat of Reaction
OBJECTIVE:
To experimentally determine the heat of reaction for two
exothermic reactions.
DISCUSSION:
The heat given off or gained in a reaction is called the heat
of reaction (∆?????????).
A reaction that releases heat is known as an exothermic
reaction; an endothermic reaction
is one that absorbs heat.
The heat of the reaction corresponds to one mole of the
reactant and is expressed in
kilocalories per mole of reactant or in kilojoules per mole of...
show all the steps please. I. What is the heat capacity of 185g of liquid water?...
show all the steps please.
I. What is the heat capacity of 185g of liquid water? How many Kilojoules are needed to raise the temperature of 10 kg of liquid water from 24.6°C to 46.2°C and 38.5 mol of water from 38.1°C to 79.4°C? Ans: 774.04J/gC, 903.74Kj, 119.75KJ 2. A 2.200 g sample of quinone, C&402. is burned in a bomb Calorimeter whose total heat capacity is 7.854 kJ C. The temperature of calorimeter increases from 23.44°C to 30.57C. What...
Pre-lab for Molar Volume of a Gas How much volume does a gas occupy under standard conditions of temperature (O°C o...
Pre-lab for Molar Volume of a Gas How much volume does a gas occupy under standard conditions of temperature (O°C or 273 K) and pressure (1 atm or 760 mmHg)? As you knew from high school, after reading the lab manual, or from lecture, you already know the answer is 22.4 L per mole (L/mol). Thus, this is more of a verification than a true experiment. In a nutshell, you will generate hydrogen gas via a reaction, collect that gas...
Question 16 5 pts The following reaction was carried out in a bomb calorimeter. The quantity of heat transferred (q) for the reaction is -106 kJ. How much work is done by the system? CH4 (8) + 45 (s) – CS2() + 2H2S (8) +106 kJ Cok insufficient information in given to solve the question 106 kJ
5. (20 pts) Consider the following reaction OF2(g) + H2O(g) ---> 2 HF(g) + O2(g) AH.(kJ/mole) -318 kJ/mole (a) Using this information along with data in the appendix of your textbook, calculate AH;(OF,(8)) in kJ/mole at 25°C. (b) If 15.0 g of OF2(g) and 10.0 g of H2Og) react, how much heat, expressed in kJ is released? Hint: First calculate the limiting reagent. 6.(20 pts) Consider two Styrofoam coffee cups. If cup #1 contains 102.0 mL of water at 81.8°C...
Question 5 5 pts How much heat will be released when 350 g NH3(g) changes from a gas to a a liquid? Use one of the values below in your calculation (you will need to determine which one based on the problem given). AHvap kJ/mol = 23.3 AH fus kJ/mol = 5.66 478.86 kJ 116.32 kJ O 73.69 kJ 354.67 kJ
5.
Question 2 1 pts Suppose you are investigating the reaction: M(s) + 2 HCl(aq) → MCl2(aq) + H2(g). You weigh out a 0.202 gram piece of metal and combine it with 62.2 mL of 1.00 M HCl in a coffee-cup calorimeter. If the molar mass of the metal is 48.51 g/mol, and you measure that the reaction absorbed 111 J of heat, what is the enthalpy of this reaction in kJ per mole of limiting reactant? Enter your answer...
Lab 9 Heat of Reaction
OBJECTIVE:
To experimentally determine the heat of reaction for two
exothermic reactions.
DISCUSSION:
The heat given off or gained in a reaction is called the heat
of reaction (∆?????????).
A reaction that releases heat is known as an exothermic
reaction; an endothermic reaction
is one that absorbs heat.
The heat of the reaction corresponds to one mole of the
reactant and is expressed in
kilocalories per mole of reactant or in kilojoules per mole of...
show all the steps please.
I. What is the heat capacity of 185g of liquid water? How many Kilojoules are needed to raise the temperature of 10 kg of liquid water from 24.6°C to 46.2°C and 38.5 mol of water from 38.1°C to 79.4°C? Ans: 774.04J/gC, 903.74Kj, 119.75KJ 2. A 2.200 g sample of quinone, C&402. is burned in a bomb Calorimeter whose total heat capacity is 7.854 kJ C. The temperature of calorimeter increases from 23.44°C to 30.57C. What...
Pre-lab for Molar Volume of a Gas How much volume does a gas occupy under standard conditions of temperature (O°C or 273 K) and pressure (1 atm or 760 mmHg)? As you knew from high school, after reading the lab manual, or from lecture, you already know the answer is 22.4 L per mole (L/mol). Thus, this is more of a verification than a true experiment. In a nutshell, you will generate hydrogen gas via a reaction, collect that gas...
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