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
mihalych1998 [28]
2 years ago
7

Liquid octane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water . Suppose 63. g of octane is mi

xed with 59.4 g of oxygen. Calculate the maximum mass of carbon dioxide that could be produced by the chemical reaction. Round your answer to significant digits.
Chemistry
2 answers:
Sever21 [200]2 years ago
5 0

Answer:

52.1 g is the maximum mass of CO₂, that can be produced by this combustion

Explanation:

Mass of Octane: 63 g

Mass of O₂: 59.4 g

This is a combustion reaction where the products, are always water and CO₂. We define the equation:

2C₈H₁₈ (l)  +  25O₂(g)  →  16CO₂(g)  +  18H₂O(g)

As we have, both mases of each reactant, we must define which is the limiting reagent. We convert the mass to moles:

63 g. 1mol / 114g = 0.552 moles

59.4 g . 1mol / 32g = 1.85 moles

Certainly, the limiting reagent is the oxygen:

2 moles of octane need 25 moles of O₂ to react

Therefore, 0.552 moles of octane must need (0.552 . 25) /2 = 6.9 moles of O₂ (I do not have enough moles of oxygen, I need 6.9 and I only got 1.85 moles)

When we know the limiting reagent we can do the calculations with the stoichiometry of the reaction:

25 moles of O₂ can produce 16 moles of CO₂

Therefore, 1.85 moles of O₂ may produce (1.85 . 16) /25 = 1.18 moles.

We convert the moles to mass to get the final answer:

1.18 mol . 44 g / 1mol = 52.1 g  

Naddika [18.5K]2 years ago
5 0

Answer:

The mass of carbon dioxide produced is 52.3 grams

Explanation:

Step 1: Data given

Mass of octane = 63.0 grams

Mass of oxygen = 59.4 grams

Molar mass of octane = 114.23 g/mol

Molar mass of oxygen = 32.0 g/mol

Step 2: The balanced equation

2C8H18 + 25O2 → 16CO2 + 18H2O

Step 3: Calculate moles

Moles = mass / molar mass

Moles octane = 63.0 grams / 114.23 g/mol

Moles octane = 0.5515 moles

Moles oxygen = 59.4 grams / 32.0 g/mol

Moles oxygen = 1.856 moles

Step 4: Calculate limiting reactant

For 2 moles octane we need 25 moles oxygen to produce 16 moles CO2 and 18 moles H2O

Oxygen is the limiting reactant. IT will completely be consumed (1.856 moles). Octane is in excess. There will react 1.856 / 12.5 = 0.1485 moles

There will remain 0.5515 -0.1485 = 0.403 moles octane

Step 5: Calculate mass of CO2

For 2 moles octane we need 25 moles oxygen to produce 16 moles CO2 and 18 moles H2O

For 1.856 moles O2 we'll have 16/25 * 1.856 = 1.1878 moles CO2

Step 6: Calculate mass of CO2

Mass of CO2 = moles CO2 * molar mass CO2

Mass of CO2 = 1.1878 moles * 44.01 g/mol

Mass of CO2 = 52.3 grams

The mass of carbon dioxide produced is 52.3 grams

You might be interested in
Why is it more difficult to remove an
Tom [10]
In general, the further away an electron is from the nucleus, the easier it is for it to be expelled. In other words, ionization energy is a function of atomic radius; the larger the radius, the smaller the amount of energy required to remove the electron from the outer most orbital. For example, it would be far easier to take electrons away from the larger element of Ca (Calcium) than it would be from one where the electrons are held tighter to the nucleus, like Cl (Chlorine). Hope this helped a little not the exact answer though :)
3 0
3 years ago
What weather types affect earthworms?
torisob [31]
Usually when it rains the worms surface!

HOPE THIS HELPS!
4 0
3 years ago
What earths layer is broken up like puzzle pieces
lilavasa [31]

The crust because there are tectonic plates.

4 0
3 years ago
Write the full ground state electron configuration of f+.
ANTONII [103]

Answer:- 1s^22s^22p^4 .

Explanation:- Atomic number for fluorine(F) is 9 and it's electron configuration is 1s^22s^22p^5 . F^+ is formed when F loses one electron from it's valence shell.

F\rightarrow F^++1e^-

Second shell is the valence shell for fluorine and so it loses one electron from 2p to form  F^+  and the electron configuration of the ion becomes 1s^22s^22p^4 .


7 0
3 years ago
HELP ASAS 15 POINTS
kramer

Answer:

liquid will be evaporated while solid remains

3 0
2 years ago
Other questions:
  • .
    12·2 answers
  • You are given an aqueous solution of NaCl. The simplest method for the separation of NaCl from the solution is
    13·1 answer
  • Each of the following substrates can react with a nucleophile in a substitution reaction. Select the substrate that cannot under
    13·1 answer
  • Which activity is most likely involved with the study of electrochemistry?
    7·1 answer
  • In a combustion chamber, ethane (C2H6) is burned at a rate of 8 kg/h with air that enters the combustion chamber at a rate of 17
    5·1 answer
  • What is the measure of AC?<br>5 units<br>13 units<br>26 units<br>39 units<br>​
    5·2 answers
  • There are three states of matter: solid, liquid, and gas. is this true or false
    8·1 answer
  • Guys i need your help Asap!You visit your grandmother's house and use her new hot tub. When you 20
    6·2 answers
  • How many milliliter of 3.0 M H2SO4 are needed to make 450.0 mL of 0.20 M H2SO4?
    8·1 answer
  • Explanation I need to show work pls help me
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!