1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
crimeas [40]
3 years ago
6

For h2o2(g), find the value of δh∘f. (use appendix c in the textbook.)

Chemistry
2 answers:
frez [133]3 years ago
6 0

Answer : - 136.0 KJ/mol

Explanation : The complete question is attached below; assuming that the bond energies are given as per the question to find out the heat of formation of H_{2}O_{2}_{(g)} we need to draw its lewis dot structure for this reaction;

H_{2}_{(g)} + O_{2}_{(g)} ----> H_{2}O_{2}_{(g)}

H_{2} will have H-H bond and O_{2} will have O=O with 2 pairs of lone electrons on each of O atom.....These are the bonds which are broken

In H_{2}O_{2}_{(g)} has H-O-O-H bonds; Here, O atom again has 2 pairs of lone pairs on each O atom; ....These are bonds which are made

ΔH°f = ∑ {ΔH(bonds broken) - ΔH (bonds made)}

ΔH°f = ∑ { (432 + 494) - [(459 X 2) +142] }

On solving, We get,

ΔH°f = -136.0 KJ/mol

Hence, the heat of formation for H_{2}O_{2}_{(g)} will be -136.0 KJ/mol

-BARSIC- [3]3 years ago
4 0
Delta H equals : -136.10 kj
You might be interested in
ENG
Varvara68 [4.7K]
The sun is my black hole and technically is also the way that urnanus comes in contact with suck m wee wee
8 0
3 years ago
I need help please with this chemistry work ​
Marysya12 [62]

Answer:

question 1: 3

question 2: the number of Valence electrons in the atom

hope it helps

8 0
2 years ago
Which statement is correct with respect to gross primary productivity
bezimeni [28]
Gross primary production and net primary production. Gross primary production is the amount of chemical energy as biomass that primary producers create in a given length of time.
8 0
3 years ago
La precipitación ácida es un agente de?
serg [7]

Answer:

acid precipitation is an agent of

Explanation:

4 0
3 years ago
Which is most often used to destroy bacteria?
vovangra [49]
Iodine- in most cleaning solutions
7 0
3 years ago
Other questions:
  • Explain why a single atom of hydrogen cannot produce all four hydrogen spectral lines simultaneously.
    7·1 answer
  • A balloon is floating around outside your window. The temperature outside is -1 ∘C , and the air pressure is 0.700 atm . Your ne
    10·2 answers
  • 5. Which organelle, found in plant and
    7·1 answer
  • Why does opening the air valve of a tire at a constant temperature decrease the pressure
    6·1 answer
  • What is the ground state shorthand notation for mercury (Hg)?
    15·2 answers
  • Which formula contains a metal and a nonmetal? SO2 MgO CO H2O
    15·2 answers
  • Is it possible for the instantaneous speed to be greater than the average speed? Explain.
    5·1 answer
  • Student added a strip of aluminium metal in aqueous copper(2)Sulfate but no reaction occured. Suggest a reason why.
    5·1 answer
  • Which energy changes would take place when a water is heated using a Bunsen burner?
    11·1 answer
  • PLEASE HELP ME WITH THIS QUESTION THIS FREAKING SUCKS
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!