Question

Use bond energies to estimate the heat for the combustion of 2.6 g of acetylene gas...

Use bond energies to estimate the heat for the combustion of 2.6 g of acetylene gas C2H2 to form carbon
dioxide and water vapor

Homework Answers

Answer #1

First we convert 2.6 g of acetylene to mole.

molar mass of acetylene = 26.04 g/mol

mass = 2.6

moles = 2.6 / 26.04 g/mol =0.099 g/mol g/mol

The heat for the combustion of 2.6g (0.1 mol) of acetylene C2H2 to form carbon dioxide and water vapor

The bond dissociation energies:-  

BE(C–H) = 456 kJ/mol

            BE(C≡C) = 962 kJ/mol

            BE(O=O) = 499 kJ/mol

            BE(C=O) = 802 kJ/mol

            BE(O–H) = 462 kJ/mol

0.1(C2H2) + (5/2)O2 → 2CO2 + H2O

0.1(H-C C-H)+ 5/20=0 ---> 20=C=O + H-0-H

0.1[962 + (2)(456)] + (5/2)499 = (2)(2)(802) + (2)(462) + E
E = (187.4+1247.5 - 4134) kJ/mol

E = 2699.1 kJ/mol kJ/mol

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Use bond energies to estimate the heat for the combustion of 2.6 g of acetylene gas...
Use bond energies to estimate the heat for the combustion of 2.6 g of acetylene gas C2H2 to form carbon dioxide and water vapor.
Use standard heat of formations to find the heat for the combustion of 2.6 g of...
Use standard heat of formations to find the heat for the combustion of 2.6 g of acetylene gas C2H2 to form carbon dioxide and water vapor
In the acetylene torch, acetylene gas (C2H2) burns in oxygen to produce carbon dioxide and water....
In the acetylene torch, acetylene gas (C2H2) burns in oxygen to produce carbon dioxide and water. 2C2H2(g)+5O2(g)→4CO2(g)+2H2O(g) A) How many moles of O2 are needed to react with 3.00 moles C2H2? B)How many moles of CO2 are produced when 3.2 moles C2H2 reacts? C)How many moles of C2H2 are required to produce 0.58 mole H2O? D)How many moles of CO2 are produced from 0.200 mole O2?
The heat of combustion of acetylene, C2H2, is -1255.5kj/mol. When 0.187g of acetylene (molecular weight 26.03)...
The heat of combustion of acetylene, C2H2, is -1255.5kj/mol. When 0.187g of acetylene (molecular weight 26.03) is burned with excess oxygen in a bomb calorimeter which has a total heat capacity of 1045J/C and an initial temperature of 21.36C, what will be the final temperature of the calorimeter plus contents? equation: C2H2+5/2 O2(g)--2CO2(g)+H2O(L) PLEASE SHOW WORK
What is the heat of combustion (Δ H ° rxn ) for acetylene (C 2 H...
What is the heat of combustion (Δ H ° rxn ) for acetylene (C 2 H 2 ) , assuming that the combustion products are CO 2 ( g ) and H 2 O( g ). Hint make sure to balance the equation. Instead of determining heats of reaction from heats of formation we sometime use average bond dissociation energies to calculate heats of reaction. Why would we need to use bond dissociation energies and how would your formula change?...
Acetylene torches are used for welding. These torches use a mixture of acetylene gas, C2H2, and...
Acetylene torches are used for welding. These torches use a mixture of acetylene gas, C2H2, and oxygen gas, O2 to produce the following combustion reaction: 2C2H2(g)+5O2(g)→4CO2(g)+2H2O(g) Imagine that you have a 5.50 L gas tank and a 4.50 L gas tank. You need to fill one tank with oxygen and the other with acetylene to use in conjunction with your welding torch. If you fill the larger tank with oxygen to a pressure of 115 atm , to what pressure...
Acetylene torches are used for welding. These torches use a mixture of acetylene gas, C2H2, and...
Acetylene torches are used for welding. These torches use a mixture of acetylene gas, C2H2, and oxygen gas, O2 to produce the following combustion reaction: 2C2H2(g)+5O2(g)→4CO2(g)+2H2O(g) Part A Imagine that you have a 7.00 L gas tank and a 2.50 L gas tank. You need to fill one tank with oxygen and the other with acetylene to use in conjunction with your welding torch. If you fill the larger tank with oxygen to a pressure of 155 atm , to...
Acetylene torches are used for welding. These torches use a mixture of acetylene gas, C2H2, and...
Acetylene torches are used for welding. These torches use a mixture of acetylene gas, C2H2, and oxygen gas, O2 to produce the following combustion reaction: 2C2H2(g)+5O2(g)→4CO2(g)+2H2O(g) imagine that you have a 7.00 L gas tank and a 4.50 L gas tank. You need to fill one tank with oxygen and the other with acetylene to use in conjunction with your welding torch. If you fill the larger tank with oxygen to a pressure of 155 atm , to what pressure...
Acetylene torches are used for welding. These torches use a mixture of acetylene gas, C2H2, and...
Acetylene torches are used for welding. These torches use a mixture of acetylene gas, C2H2, and oxygen gas, O2 to produce the following combustion reaction: 2C2H2(g)+5O2(g)→4CO2(g)+2H2O(g) Part A Imagine that you have a 6.50 L gas tank and a 3.00 L gas tank. You need to fill one tank with oxygen and the other with acetylene to use in conjunction with your welding torch. If you fill the larger tank with oxygen to a pressure of 105 atm , to...
± Gas Law Stoichiometry Acetylene torches are used for welding. These torches use a mixture of...
± Gas Law Stoichiometry Acetylene torches are used for welding. These torches use a mixture of acetylene gas, C2H2, and oxygen gas, O2 to produce the following combustion reaction: 2C2H2(g)+5O2(g)→4CO2(g)+2H2O(g) Part A Imagine that you have a 5.50 L gas tank and a 2.50 L gas tank. You need to fill one tank with oxygen and the other with acetylene to use in conjunction with your welding torch. If you fill the larger tank with oxygen to a pressure of...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT
Active Questions
  • ASAP A company plans to manufacture a rectangular container with a square base, an open top,...
    asked 1 minute ago
  • For long term deposits, Commercial Bank pays 6.5% per annum, while Bank National pays 6.4%per annum...
    asked 3 minutes ago
  • A) What are the main differences between a) pre-transcriptional control, b) post-transcriptional control, and c) post-translational...
    asked 5 minutes ago
  • The Vice President for Sales and Marketing at Waterways Corporation is planning for production needs to...
    asked 5 minutes ago
  • Given the following information: Information Original Budget Actual Units produced 1,000 units 970 units Materials (kg)...
    asked 7 minutes ago
  • A newly discovered toxin is known to impact female fertility. It acts to block hormones from...
    asked 7 minutes ago
  • MobileCash Corporation operates a fleet of armoured cars that make scheduled pickups and deliveries for its...
    asked 7 minutes ago
  • Managing Pension cost is a challenge for every Administration. If you are the Chief of NYC...
    asked 7 minutes ago
  • Do you think it’s appropriate for countries within the EU to prohibit foreign direct investment within...
    asked 8 minutes ago
  • Southwestern Edison Company leased equipment from Hi-Tech Leasing on January 1, 2018. Hi-Tech manufactured the equipment...
    asked 17 minutes ago
  • Calculate the duration of a 2-year bond with 8% semiannual coupon selling at par if interest...
    asked 18 minutes ago
  • Corporate governance is an essential condition to the establishment of a stock market, attracting major investment...
    asked 18 minutes ago