Homework Answers
Add Answer to:
lowing reaction and calculate the AHⓇ for NO. 7. Consider the following reaction and calculate the...
7. Calculate the maximum non-expansion work per mole that may be obtained from the combustion of...
7. Calculate the maximum non-expansion work per mole that may be obtained from the combustion of methanol at 298 K. (10 pts) 2CH,OH (g) + O2 (g) 2002 (g) + 4H20 (1) CH,OH (g) 0:(8) CO2(g) H20 (1) A, Gº (kJ mol) -161.96 0 -394.36 -273.13
7. -13 points Calculate the standard enthalpy of reaction for the combustion of methane. Round to the nearest whole...
7. -13 points Calculate the standard enthalpy of reaction for the combustion of methane. Round to the nearest whole number. CH (9) + 02 --> CO2(g) + 2H,0(1) kl/mol Compound H, (kJ/mole) CH (9) 75 Co (9) 394 H2O(1) 284 This reaction is: O exothermic O endothermic Submit Answ V iewing Saved Work Revert to Last Response
7) Calculate the reaction enthalpy for the combustion reaction of hydroxyb2-butanone (CH0, given the following energy...
7) Calculate the reaction enthalpy for the combustion reaction of hydroxyb2-butanone (CH0, given the following energy value C-O (for CO,) - 799 kJ/mole, OH - 460 kJ/mole, C-O= 351 kJ/mole, C-C - 347 kJ/mole, CH-414 kJ/mole, 0,- 498 kJ/mole. carbonyl (C-0) - 745 k./mole. 50. 48,0 – 400, OH a) -2,087 kJimole c) 2.949 kulmole b) -1,740 kJ/mole d) 5.467 kJ/mole On a separate sheet of paper. CLEARLY draw the chair conformations for the following cyclohexane derivatives. CIRCLE TILE MOST...
Using Hess's Law to calculate net reaction enthalpy Dimethycurier, a useful organic solvent, is prepared in...
Using Hess's Law to calculate net reaction enthalpy Dimethycurier, a useful organic solvent, is prepared in two steps. In the first step, carbon dioxide and hydrogen react to form methanol and water: CO2(g) + 3H2(9) - CH2OH(1) + H2O(1) AH-131. J In the second step, methanol reacts to form dimethyl ether and water: 2 CH,OH(1) - CH,OCH,(9) + H,00 AH8. kJ Calculate the net change in enthalpy for the formation of one mole of dimethyl ether from carbon dioxide and...
2). Consider the following intramolecular S2 reaction. no ♡ + HI A) (5 pts) Use the...
2). Consider the following intramolecular S2 reaction. no ♡ + HI A) (5 pts) Use the table of Bond Dissociation Enthalpies (at the back of the exam) to calculate the approximate ΔΗπη. B) (3 pts) Is the reaction endothermic or exothermic? Why? C) (6 pts) Draw the Reaction Energy Coordinate Diagram. Label the axes, reactant(s), product(s), transition state(s), intermediate(s), activation energy, and reaction enthalpy. D) (3 pts) In regards to entropy, would you expect the reaction to be favorable, or...
6. Calculate each of the following: a. the number of atoms in 0.5 mol ofc b...
6. Calculate each of the following: a. the number of atoms in 0.5 mol ofc b the number of So, molecules in 1.28 mol of SO c. the moles of Fe in a sample containing 5.22 x10 - atoms of Fe 7. Calculate the molar mass for each of the following use the periodic table for the atomic mass): H2SO4 Fe2O3 Al(SO.) Mg(OH)2 (NH4)2CO3 8. How many moles of Cl2 are there in 25 g of Ciz? 9. How many...
(7 pts.) Calculate the heat absorbed when 4.20 g of H2 are produced according to the...
(7 pts.) Calculate the heat absorbed when 4.20 g of H2 are produced according to the following equation. CH3OH (g) → CO(g) + 2 H2(g) AH = 90.2 kJ (7 pts.) When one adds 1.475 kJ of heat energy to a sample of gold, the temperature goes from 12.5 °C to 84.6 °C. Calculate the mass of the sample of gold. Gold has a specific heat capacity of 0.129 J/g.°C. (6 pts.) 10. Write the thermochemical equation for the standard...
Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the...
Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) 1) One mole of any substance contains Avogadro's number of particles of that substance. What is the numerical value of Avogadro's number? A) 12.01 23 Avagrans t Male aton 6022 x1o atums B) 6.022 x 1023 C) 6.022 x 10-23 D) 1.661 x10-24 E) 1.00 x10-14 2) What is the mass of 4.00 moles of helium, the gas commonly used to fill...
7. Calculate the maximum non-expansion work per mole that may be obtained from the combustion of methanol at 298 K. (10 pts) 2CH,OH (g) + O2 (g) 2002 (g) + 4H20 (1) CH,OH (g) 0:(8) CO2(g) H20 (1) A, Gº (kJ mol) -161.96 0 -394.36 -273.13
7. -13 points Calculate the standard enthalpy of reaction for the combustion of methane. Round to the nearest whole number. CH (9) + 02 --> CO2(g) + 2H,0(1) kl/mol Compound H, (kJ/mole) CH (9) 75 Co (9) 394 H2O(1) 284 This reaction is: O exothermic O endothermic Submit Answ V iewing Saved Work Revert to Last Response
7) Calculate the reaction enthalpy for the combustion reaction of hydroxyb2-butanone (CH0, given the following energy value C-O (for CO,) - 799 kJ/mole, OH - 460 kJ/mole, C-O= 351 kJ/mole, C-C - 347 kJ/mole, CH-414 kJ/mole, 0,- 498 kJ/mole. carbonyl (C-0) - 745 k./mole. 50. 48,0 – 400, OH a) -2,087 kJimole c) 2.949 kulmole b) -1,740 kJ/mole d) 5.467 kJ/mole On a separate sheet of paper. CLEARLY draw the chair conformations for the following cyclohexane derivatives. CIRCLE TILE MOST...
Using Hess's Law to calculate net reaction enthalpy Dimethycurier, a useful organic solvent, is prepared in two steps. In the first step, carbon dioxide and hydrogen react to form methanol and water: CO2(g) + 3H2(9) - CH2OH(1) + H2O(1) AH-131. J In the second step, methanol reacts to form dimethyl ether and water: 2 CH,OH(1) - CH,OCH,(9) + H,00 AH8. kJ Calculate the net change in enthalpy for the formation of one mole of dimethyl ether from carbon dioxide and...
2). Consider the following intramolecular S2 reaction. no ♡ + HI A) (5 pts) Use the table of Bond Dissociation Enthalpies (at the back of the exam) to calculate the approximate ΔΗπη. B) (3 pts) Is the reaction endothermic or exothermic? Why? C) (6 pts) Draw the Reaction Energy Coordinate Diagram. Label the axes, reactant(s), product(s), transition state(s), intermediate(s), activation energy, and reaction enthalpy. D) (3 pts) In regards to entropy, would you expect the reaction to be favorable, or...
6. Calculate each of the following: a. the number of atoms in 0.5 mol ofc b the number of So, molecules in 1.28 mol of SO c. the moles of Fe in a sample containing 5.22 x10 - atoms of Fe 7. Calculate the molar mass for each of the following use the periodic table for the atomic mass): H2SO4 Fe2O3 Al(SO.) Mg(OH)2 (NH4)2CO3 8. How many moles of Cl2 are there in 25 g of Ciz? 9. How many...
(7 pts.) Calculate the heat absorbed when 4.20 g of H2 are produced according to the following equation. CH3OH (g) → CO(g) + 2 H2(g) AH = 90.2 kJ (7 pts.) When one adds 1.475 kJ of heat energy to a sample of gold, the temperature goes from 12.5 °C to 84.6 °C. Calculate the mass of the sample of gold. Gold has a specific heat capacity of 0.129 J/g.°C. (6 pts.) 10. Write the thermochemical equation for the standard...
Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) 1) One mole of any substance contains Avogadro's number of particles of that substance. What is the numerical value of Avogadro's number? A) 12.01 23 Avagrans t Male aton 6022 x1o atums B) 6.022 x 1023 C) 6.022 x 10-23 D) 1.661 x10-24 E) 1.00 x10-14 2) What is the mass of 4.00 moles of helium, the gas commonly used to fill...
Most questions answered within 3 hours.
-
The free energy change for the following reaction at 25 °C, when
[Sn2+] = 1.17 M...
asked 2 minutes ago -
An MNE is this kind of industry when competition in one country
is essentially independent of...
asked 1 hour ago -
. For this set of questions, determine what
proportion of a normal distribution is located betweeneach...
asked 2 hours ago -
A college student is employed as a door-to-door newspaper
salesman. Historical data suggests that the student...
asked 3 hours ago -
MATLAB HW 11 problem using Switch Case and Input commands
Write a script file that calculates...
asked 2 hours ago -
Considering gravitational time dilation, calculate the time that
passes in Earth’s surface while 1 hour passes...
asked 3 hours ago -
Minitab Problem: Take the Lake Hume June rainfall data and find
use the processes outlined in...
asked 4 hours ago -
X Company is trying to decide whether to continue using old
equipment to make Product A...
asked 4 hours ago -
IN PYTHON ONLY !! Program 2: Re-work
program #5 (WeeklyHours) from the previous assignment such that...
asked 4 hours ago -
The average length of time between arrivals at a turnpike
toll-booth is 26 seconds. What is...
asked 6 hours ago -
(a) A piston at 6.1 atm contains a gas that occupies a volume of
3.5 L....
asked 7 hours ago -
Please answer true or false. Words
cannot be changed or added in to make it true...
asked 7 hours ago