Homework Answers
Add Answer to:
QUESTION 4 0.5 points Save Answer A 6.32 g sample of ethanol (C2H5OH) is burned in...
A 2.11 g sample of ethanol (C2H5OH) is burned in a bomb calorimeter with a heat capacity, C-5.65 kJ/"C. C2H5OH() + 3 O2...
A 2.11 g sample of ethanol (C2H5OH) is burned in a bomb calorimeter with a heat capacity, C-5.65 kJ/"C. C2H5OH() + 3 O2(g) + 2 CO2(g) + 3 H2O(g) AH'rxn=-1235 kJ If the initial temperature is 25.0°C, what is the final temperature (in "C) of the calorimeter? The molar mass of ethanol is 46.07 g/mol. Remember, in the heat equation, q=m's'AT, heat capacity is equivalent to Cum's, giving Heat capacity is extensive whereas specific heat is intensive. -CAT.
A 12.8 g sample of ethanol (C2H5OH) is burned in a bomb calorimeter with a heat capacity of 5.65 kJ/�C. Using the inform...
A 12.8 g sample of ethanol (C2H5OH) is burned in a bomb calorimeter with a heat capacity of 5.65 kJ/�C. Using the information below, determine the final temperature of the calorimeter if the initial temperature is 25.0�C. The molar mass of ethanol is 46.07 g/mol.
A 35.6 g sample of ethanol (C2H5OH) is burned in a bomb calorimeter, according to the following reaction. If the...
A 35.6 g sample of ethanol (C2H5OH) is burned in a bomb calorimeter, according to the following reaction. If the temperature rose from 35.0 to 76.0°C and the heat capacity of the calorimeter is 23.3 kJ/°C, what is the value of DH°rxn? The molar mass of ethanol is 46.07 g/mol. C2H5OH(l) + O2(g) → CO2(g) + H2O(g) ΔH°rxn = ? (Points : 1) -1.24 × 103 kJ/mol +1.24 × 103 kJ/mol -8.09 × 103 kJ/mol -9.55 × 103 kJ/mol...
A 35.6 g sample of ethanol (C2H5OH) is burned in a bomb calorimeter, according to the following reaction. If the...
A 35.6 g sample of ethanol (C2H5OH) is burned in a bomb calorimeter, according to the following reaction. If the temperature rose from 35.0 to 76.0°C and the heat capacity of the calorimeter is 23.3 kJ/°C, what is the value of DH°rxn? The molar mass of ethanol is 46.07 g/mol. C2H5OH(l) + O2(g) → CO2(g) + H2O(g) ΔH°rxn = ? (Points : 1) -1.24 × 103 kJ/mol +1.24 × 103 kJ/mol -8.09 × 103 kJ/mol -9.55 × 103 kJ/mol...
Which one of the following statements is true? O H is the value of a measured...
Which one of the following statements is true? O H is the value of a measured under conditions of constant volume. The enthalpy change for a reaction is independent of the state of the reactants and products. Enthalpy is a state function. O Enthalpy is an intensive property. The enthalpy change of a reaction is the reciprocal of the AH of the reverse reaction. QUESTION 2 0.5 points Save Answer Given the following reactions N2 (g) + 2O2 (g) +...
Please help with these two questions :( 1. How much energy (in kJ) is evolved during...
Please help with these two questions :(
1. How much energy (in kJ) is evolved during the reaction of
76.9 g of Al, according to the reaction below?
Fe2O3(s) + 2 Al(s) →
Al2O3(s) + 2 Fe(s) ΔH°rxn = -852
kJ
Assume that there is excess Fe2O3.
2. A 12.43 g sample of ethanol (C2H5OH) is
burned in a bomb calorimeter with a heat capacity, C = 5.65
kJ/°C.
C2H5OH(l) + 3 O2(g) → 2
CO2(g) + 3 H2O(g) ΔH°rxn...
Heat Capacity and Calorimetry A sample of ethanol, C2H5OH, weighing 2.84 g was burned in an...
Heat Capacity and Calorimetry
A sample of ethanol, C2H5OH, weighing 2.84 g was burned in an
excess of oxygen in a bomb calorimeter. The temperature of the
calorimeter rose from 25C to 33.73C. If the heat capacity of the
calorimeter and contents is 9.63kJ/C, what is the value of q for
burning 1.00 lol of ethanol at constant volume and 25.00C.
Is q equal to U or H?
214e Questions and Problems the enthalpy change when 0.710 mol of calcium...
6.A 12.8 g sample of ethanol (C,H,OH) is burned in a calorimeter with a heat capacity...
6.A 12.8 g sample of ethanol (C,H,OH) is burned in a calorimeter with a heat capacity of 5.65 kJ/°C. Assume the heat from the sample is negligible compared to the calorimeter. Determine the initial temperature of the calorimeter if the final temperature is 85.7°C. The molar mass of ethanol is 46.07 g/mol. С-Н,ОН , + 3 О,ее — 2 СОде + 3 Н,0 qrxn -1235 kJ 7. Two solutions, initially at 24.60 °C, are mixed in a coffee cup calorimeter...
5) A 35.6 g sample of ethanol (C2HsOH) is burned in a bomb calorimeter, according to...
5) A 35.6 g sample of ethanol (C2HsOH) is burned in a bomb calorimeter, according to the following on. If the temperature rose from 35.0 to 76.0°C and the heat capacity of the calorimeter is 23.3 kJ/PC, what is the value of AHrxn? The molar mass of ethanol is 46.07 gmol C2HsOH)+302() 2 Co2()+3 H20) frxn7 A) -1.24 x 103 kJ/mol C)-809 x 103 kJ/rnol B) +1.24 x 103 kJ/mol E) +9.55 x 103 kJ/mol D) -9.55 x 103 kJ/mol...
A 2.50 g sample of ethanol, C2H5OH, was combusted in the presence of excess oxygen in...
A 2.50 g sample of ethanol, C2H5OH, was combusted in the presence of excess oxygen in a bomb calorimeter containing 2.00 kg of water. The temperature of the water increased from 22.500oC to 27.845oC. The heat capacity of the calorimeter is 2520 J/oC and the specific heat capacity of water is 4.184 J/goC. Calculate the molar enthalpy of the combustion reaction in kJ/mol
A 2.11 g sample of ethanol (C2H5OH) is burned in a bomb calorimeter with a heat capacity, C-5.65 kJ/"C. C2H5OH() + 3 O2(g) + 2 CO2(g) + 3 H2O(g) AH'rxn=-1235 kJ If the initial temperature is 25.0°C, what is the final temperature (in "C) of the calorimeter? The molar mass of ethanol is 46.07 g/mol. Remember, in the heat equation, q=m's'AT, heat capacity is equivalent to Cum's, giving Heat capacity is extensive whereas specific heat is intensive. -CAT.
Which one of the following statements is true? O H is the value of a measured under conditions of constant volume. The enthalpy change for a reaction is independent of the state of the reactants and products. Enthalpy is a state function. O Enthalpy is an intensive property. The enthalpy change of a reaction is the reciprocal of the AH of the reverse reaction. QUESTION 2 0.5 points Save Answer Given the following reactions N2 (g) + 2O2 (g) +...
Please help with these two questions :(
1. How much energy (in kJ) is evolved during the reaction of
76.9 g of Al, according to the reaction below?
Fe2O3(s) + 2 Al(s) →
Al2O3(s) + 2 Fe(s) ΔH°rxn = -852
kJ
Assume that there is excess Fe2O3.
2. A 12.43 g sample of ethanol (C2H5OH) is
burned in a bomb calorimeter with a heat capacity, C = 5.65
kJ/°C.
C2H5OH(l) + 3 O2(g) → 2
CO2(g) + 3 H2O(g) ΔH°rxn...
Heat Capacity and Calorimetry
A sample of ethanol, C2H5OH, weighing 2.84 g was burned in an
excess of oxygen in a bomb calorimeter. The temperature of the
calorimeter rose from 25C to 33.73C. If the heat capacity of the
calorimeter and contents is 9.63kJ/C, what is the value of q for
burning 1.00 lol of ethanol at constant volume and 25.00C.
Is q equal to U or H?
214e Questions and Problems the enthalpy change when 0.710 mol of calcium...
6.A 12.8 g sample of ethanol (C,H,OH) is burned in a calorimeter with a heat capacity of 5.65 kJ/°C. Assume the heat from the sample is negligible compared to the calorimeter. Determine the initial temperature of the calorimeter if the final temperature is 85.7°C. The molar mass of ethanol is 46.07 g/mol. С-Н,ОН , + 3 О,ее — 2 СОде + 3 Н,0 qrxn -1235 kJ 7. Two solutions, initially at 24.60 °C, are mixed in a coffee cup calorimeter...
5) A 35.6 g sample of ethanol (C2HsOH) is burned in a bomb calorimeter, according to the following on. If the temperature rose from 35.0 to 76.0°C and the heat capacity of the calorimeter is 23.3 kJ/PC, what is the value of AHrxn? The molar mass of ethanol is 46.07 gmol C2HsOH)+302() 2 Co2()+3 H20) frxn7 A) -1.24 x 103 kJ/mol C)-809 x 103 kJ/rnol B) +1.24 x 103 kJ/mol E) +9.55 x 103 kJ/mol D) -9.55 x 103 kJ/mol...
Most questions answered within 3 hours.
-
What will the standard deviation of these exam grades be? A
square bracket means inclusive, so...
asked 5 minutes ago -
Beginning Retained Earnings are $ 79 comma 000 $79,000; sales
are $ 31 comma 700 $31,700;...
asked 7 minutes ago -
Please explain/demonstrate how to use NLTK to test unigram,
bigram, and trigram character models on guessing...
asked 13 minutes ago -
what you feel is most important to you and why regarding your
typing skills?
asked 14 minutes ago -
Consider a play of the casino game `Quick Draw'. In this game, a
player pays $11...
asked 24 minutes ago -
How do the mechanical features of bone affect its roles as
repositories of phosphate and calcium,...
asked 28 minutes ago -
P agreed to buy 100 barrels of widget oil, which was stored in a
large tank...
asked 28 minutes ago -
The unstable isotope 40K is used for dating rock samples. Its
half-life is 1.28×109y. How many...
asked 31 minutes ago -
Compare and contrast constructed-response items and
selected-response items.
Identify at least one (1) advantage and one...
asked 33 minutes ago -
A) Find the moment of inertia of a 2 meter long stick with a
mass of...
asked 31 minutes ago -
For the code below write a public static main() method
in class Student that:
- creates...
asked 34 minutes ago -
Please show all steps. Thank you
A 1.0-cm-diameter pipe widens to 2.0 cm, then narrows to...
asked 46 minutes ago