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
natita [175]
2 years ago
8

31. Use the equation given below to answer the following question: If 755 kJ of heat was absorbed, what mass of carbon dioxide r

eacted?
2CO2 + 43.9 kJ → 2CO +O2
Chemistry
1 answer:
brilliants [131]2 years ago
8 0

Answer:

1514g of CO₂ reacted

Explanation:

Based on the reaction:

2CO₂ + 43.9kJ → 2CO + O₂

<em>2 moles of carbon dioxide require 43.9kJ of energy to produce 2 moles of carbon monoxide and 1 mole of oxygen</em>

<em />

To solve this question, we must convert the 755kJ of energy to moles of carbon dioxide that reacts and to find the mass as follows:

755kJ * (2 moles CO₂ / 43.9kJ)  =34.4 moles of CO₂ are produced

<em>Mass CO₂: Molar mass: 44.01g/mol</em>

34.4 moles CO₂ * (44.01g / mol) =

<h3>1514g of CO₂ reacted</h3>
You might be interested in
What is a small-ball shaped organelle that helps the cell break down nutrients and old cell parts.
Gemiola [76]
Lysosome: only ones that  break down old cell parts<span>
</span>
6 0
3 years ago
The Hawaiian islands formed as a result of a hot spot.<br><br> A.)True <br><br> B.)False
choli [55]

Hello,

That is true.

8 0
3 years ago
Read 2 more answers
A certain intermolecular force is created due to a brief concentration of electrons between nonpolar molecules. What best explai
Paladinen [302]

Answer:

The correct answer is D

Explanation:

Many substances hold their molecules together in the liquid or solid bosom. This is due, in addition to the pressure and temperature conditions, by the forces of Van der Waals. These are still produced in nonpolar molecules by the movement of electrons through the molecules; in extremely short periods of time, their electrons "charge" towards one end of the molecule, producing small dipoles and keeping the molecules very close to each other.

8 0
3 years ago
Read 2 more answers
Cyclopropene decomposes to propene when heated to 500 C, calculate rate constant for the first order reaction 0 min 1.48 mmol/L
Dmitry_Shevchenko [17]

Answer:

k = 0.0306 min-1

Explanation:

The table is given as;

Time, Concentration

0 1.48

5 1.27

10 0.98

15 0.84

The integrated rate law for a first order reaction is given as;

ln [A] = -kt + ln [Ao]

where;

[A] = Final Concentration

[Ao] = Initial Concentration

k = rate constant

t = time

In the table, taking the first two sets of values;

t = 5

k = ?

[Ao]  = 1.48

[A] = 1.27

Inserting into the equation;

ln(1.27) = - k (5) + ln(1.48)

ln(1.27)  - ln(1.48) = -5k

-0.1530 = -5k

k = -0.1530 / -5

k = 0.0306 min-1

6 0
3 years ago
What season starts in the northern hemisphere as the suns direct rays strike the equator moving from the southern hemisphere to
laila [671]

Answer:

summer

Explanation:

3 0
3 years ago
Other questions:
  • a chemist needs to make 1000mL of a 30% alcohol solution by mixing 25% and 55% solution. How much of each should she use?
    15·1 answer
  • How should the baking of a pizza be categorized
    11·2 answers
  • Which subatomic particles are located in MOST of the space within an atom?
    6·1 answer
  • Illustrate: The Avogadro constant is so large it is normally written in scientific notation. To
    5·2 answers
  • What are all planets that have rings
    13·2 answers
  • Why do lipids make effective cell membranes in living cells?
    9·2 answers
  • Se tiene un litronde solucion de agua con alcohol con una consentracion del 4.5% v/v ¿Cuanto alcohol se tiene en la solución
    8·1 answer
  • What is made when acids and bases are combined?
    13·1 answer
  • What happens to most of the energy as it moves throughout a food web?
    14·1 answer
  • What is the difference between amines and amides​?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!