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
soldi70 [24.7K]
3 years ago
12

Determine the enthalpy change when 23.5 g of carbon is reacted with oxygen according to the reaction C(s) + O2(g) CO2(g) delta H

= –394 kJ/mol
Chemistry
1 answer:
xeze [42]3 years ago
8 0
We are provided with the amount of energy released when one mole of carbon reacts. We mus first convert the given mass of carbon to moles and then compute the energy released for the given amount.

Moles = mass / atomic mass
Moles = 23.5 / 12
Moles = 1.96 moles


One mole releases 394 kJ/mol
1.96 moles will release:
394*1.96
= 772.24

The enthalpy change of the reaction will be -772.24 kJ
You might be interested in
A pascal is a unit for measuring pressure. Which of the following is equal to a pascal unit?
Assoli18 [71]
The pascal (pronounced pass-KAL and abbreviated Pa) is the unit of pressure or stress in the International System of Units (SI). It is named after the scientist Blaise Pascal. One pascal is equivalent to one newton (1 N) of force applied over an area of one meter squared (1 m2).
5 0
3 years ago
Read 2 more answers
When positive externalities are present in a market?
mylen [45]
When positive externalities are present in a market, it means that:
Private benefits are less than social benefits
7 0
4 years ago
Which is an image of a scintillation counter?
dimulka [17.4K]
D is a scintillation counter.
3 0
3 years ago
Read 2 more answers
Which mineral would most likely be found in a necklace
scoray [572]
Maybe like a diamond or something
5 0
3 years ago
Read 2 more answers
What is a hot spot? ( Must be in your own words) Pleaseeee Hurryy
Ilia_Sergeevich [38]

Answer:

A hot spot is an area on Earth over a mantle plume or an area under the rocky outer layer of Earth, called the crust, where magma is hotter than surrounding magma. The magma plume causes melting and thinning of the rocky crust and widespread volcanic activity.

Hope this is what you mean be hot spot!

I hope this helps you!  

Have a great day

7 0
3 years ago
Other questions:
  • The map below shows a section of the state of Florida. The red line indicates a geologic feature found in Florida. This geologic
    9·2 answers
  • How do isotopes of a givin element similar
    5·2 answers
  • All atoms of a specific element have the same number of _______.
    11·1 answer
  • In yeast, ethanol is produced from glucose under anaerobic conditions. A cell‑free yeast extract is placed in a solution that co
    11·1 answer
  • Cheryl is performing SDS-PAGE gel electrophoresis but she forgets to heat her samples with SDS. Which of the following occurs as
    15·1 answer
  • 0.352 g sample of a diprotic acid is dissolved in water and titrated with 0.150 M NaOH.0.150 M NaOH. What is the molar mass of t
    14·1 answer
  • How many kilograms are in 125 pounds
    7·1 answer
  • Write all the laws of thermodynamics.​
    8·2 answers
  • What makes this lever effective?
    5·1 answer
  • 1. A balloon contains 100g of oxygen gas (O₂) when the volume is 110 dm³. Find the volume of the balloon when the mass of oxygen
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!