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
sweet-ann [11.9K]
3 years ago
12

The equation shows one mole of ethanol fuel being burned in oxygen. Convert the energy released into its equivalent mass. C2H5OH

(l) + 3 O2(g) Æ 2 CO2(g) + 3 H2O (l) ΔH = -1418 kJ/mol
Chemistry
1 answer:
lana [24]3 years ago
7 0

Answer:

47.9 g of ethanol

Explanation:

Combustion is a chemical reaction in which a substance reacts with oxygen to produce heat and light. Combustion reactions have been very useful as a source of energy. Ethanol is now burnt for energy purposes as a fuel. Ethanol has even been proposed as a possible alternative to fossil fuels.

Since 1 mole of ethanol when combusted releases 1367 kJ/mol of energy

x moles of ethanol releases 1418 kJ/mol.

x= 1 × 1418 kJ/mol/ 1367 kJ/mol

x= 1.04 moles of ethanol.

Mass of ethanol = number of moles × molar mass

Molar mass of ethanol = 46.07 g/mol

Mass of ethanol = 1.04 moles × 46.07 g/mol

Mass of ethanol= 47.9 g of ethanol

You might be interested in
Is NaCi a metal or nonmetal
Kruka [31]
Hi , NaCl is basically salt , Na for sodium and Cl for chlorine , these elements make Sodium Chloride .The bond between them is ionic.
5 0
3 years ago
Read 2 more answers
Difference between shell and subshell?
juin [17]
The "sub shells" are the orientations and shapes for your orbitals, going in order by Shells are a collection of subshells with the same principle quantum number, and subshells are a collection of orbitals with the same principle quantum number and angular momentum quantum number. Hope this helps :)
3 0
3 years ago
18. Which hydrocarbon has more than one possible
emmainna [20.7K]

See here question has answer in itself

The structural isomerism starts always from but word root .

So butane has one and most among all as rest three have none .

The two isomers are

  • n-butane
  • iso-butane
7 0
2 years ago
What is the definition of electrical energy?
kherson [118]

Answer: Electrical energy is defined as an electric charge that lets work be accomplished. An example of electrical energy is power from a plug outlet. YourDictionary definition and usage example.

Explanation:

7 0
3 years ago
What is river capture​
abruzzese [7]
RIVER CAPTURE. *is when the powerful and energetic river cuts back through watershed by headward erosion cupturing another river's water. CONDITION FOR RIVER CAPTURE TO OCCUR. * steeper gradient on the energetic stream side of the watershed.Apr 6, 2019
6 0
3 years ago
Other questions:
  • Why are atoms considered the smallest particles of an element?
    15·2 answers
  • The first table was arranged by atomic mass, but later Mosely improved it by arranging by _______________.
    8·2 answers
  • What volume is occupied by 35.2 g of carbon tetrachloride if its density is 1.60 g/ml?
    9·2 answers
  • What is the [H3O+] of a solution with a pH of 2.56? 2.56 M, 2.75 x 10-3 M, 363 M, or -0.408 M
    12·2 answers
  • A titration was performed in a lab situation. H2SO4 was titrated with NaOH. The following data was collected: mL of NaOH used =
    12·2 answers
  • Arrange the following compounds in the order of increasing reactivity toward nucleophilic acyl substitution, with least reactive
    13·1 answer
  • Which statement is true about nuclear decay?
    12·2 answers
  • How many moles are there in 12.5 g of methanol, CH3OH?
    12·1 answer
  • The 38 elements in groups 3 through 12 of the periodic table are called "Alkaline Earth Metals" O True O False​
    7·2 answers
  • Which of the following statements are true of groups on the periodic table?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!