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
timofeeve [1]
3 years ago
10

Calculate ΔH when 2 moles of ethanol (C2H5OH) reacts with excess oxygen according to the following thermochemical equation?C2H5O

H + 3O2 → 2CO2 + 3H2O ΔH = −1366.7 kJ
Chemistry
1 answer:
klio [65]3 years ago
5 0

Answer:

–2733.4 KJ

Explanation:

The balanced equation for the reaction is given below:

C₂H₅OH + 3O₂ —> 2CO₂ + 3H₂O

ΔH = −1366.7 kJ

From the balanced equation above,

1 mole of C₂H₅OH reacted to produce enthalpy change (ΔH) of −1366.7 kJ.

Finally, we shall determine the enthalpy change (ΔH) produced by the reaction of 2 moles of C₂H₅OH. This can be obtained as follow:

From the balanced equation above,

1 mole of C₂H₅OH reacted to produce enthalpy change (ΔH) of −1366.7 kJ.

Therefore, 2 moles of C₂H₅OH will react to produce enthalpy change (ΔH) of = 2 × −1366.7 = –2733.4 KJ.

Thus, enthalpy change (ΔH) obtained is –2733.4 KJ

You might be interested in
The diagram shows a model of the nitrogen cycle. which role do plants play in the nitrogen cycle?
kenny6666 [7]

Answer

D

Explanation:

They take up usable forms of nitrogen found in soil

3 0
3 years ago
Read 2 more answers
Write a paragraph on: how Westfield how the rust in their water formed.
Mariana [72]

Answer:

Students have investigated what's going on in the fictional town of Westfield, they learned that the mysterious reddish-brown substance in the water is actually rust, which formed because of a chemical reaction between the iron pipes and the fertilizer substance in the water.

Explanation:

8 0
2 years ago
The second electron shell of an atom can hold a maximum of ______ electron(s).
lawyer [7]
Can hold max of 8 electrons
5 0
2 years ago
How many grams of Cl2 will be produced along with 250.0 kJ of heat in the following reaction? PCl5(g) + 87.9 kJ PCl3(g) + Cl2(g)
AfilCa [17]
250 kJ/87.9 KJ per mole Cl2 * 71g/mole= 202 g It is D for plato users
3 0
3 years ago
Read 2 more answers
your teacher wants you to perform an experiment that will demonstrate a chemical property. which experiment should you choose
geniusboy [140]

Answer:

Measure the pH of different household chemicals

Explanation:

To demonstrate a chemical property using an experiment, measuring the pH of different household chemicals will be the best way. The pH is the degree of hydrogen or hydroxyl ion concentration in a solution.

Chemical properties tell us about what a substance can do.

It shows if a substance will react with other substances or not.

Examples are flammability, rusting of iron, precipitation, decomposition of water by electric current e.t.c.

Measuring the pH is a chemical property determination procedure.

The pH points to the degree of acidity or alkalinity of a solution.

6 0
3 years ago
Other questions:
  • What is a property of a combustion reaction?
    6·1 answer
  • Which is the process by which plants convert light energy into chemical energy?
    7·2 answers
  • An
    12·1 answer
  • Select all the correct answers,
    8·1 answer
  • What does the atomic number represent on the periodic table
    11·1 answer
  • Which process uses the sun's energy to convert water on Earth's surface into water vapor?
    7·1 answer
  • A student needs to convert a volume of 3 Tbsp (tablespoons) to mL. The student finds out that 1 tablespoon is equivalent to 14.7
    13·1 answer
  • ethylene glycol, commonly used in automobile antifreeze, contains only carbon, hydrogen and oxygen.combustion analysis of a 23.4
    11·1 answer
  • Write the number 874.591 correct to 2 decimal places<br>​
    9·2 answers
  • What does corona mean?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!