Class 9 Exam > Class 9 Questions > calculate the total number of electrons prese...
Start Learning for Free
calculate the total number of electrons present in 2 gram of methane(CH4)
Most Upvoted Answer
calculate the total number of electrons present in 2 gram of methane(C...
Calculation of Total Number of Electrons in 2 grams of Methane (CH4)
Methane is a hydrocarbon with the chemical formula CH4. It is a colorless, odorless gas that is the primary component of natural gas. In this post, we will calculate the total number of electrons present in 2 grams of methane.
Step 1: Find the Molar Mass of Methane
The molar mass of methane can be calculated by adding up the atomic masses of carbon and hydrogen in one molecule of methane. The atomic masses of carbon and hydrogen are:
- Carbon: 12.01 g/mol
- Hydrogen: 1.01 g/mol
Therefore, the molar mass of methane is:
Molar mass of CH4 = (1 x 12.01 g/mol) + (4 x 1.01 g/mol) = 16.05 g/mol
Step 2: Convert Grams to Moles
We need to convert the given mass of methane from grams to moles. This can be done using the formula:
Number of moles = Mass / Molar mass
Substituting the given values, we get:
Number of moles of CH4 = 2 g / 16.05 g/mol = 0.1247 mol
Step 3: Find the Total Number of Electrons
The total number of electrons in 0.1247 moles of methane can be calculated using the Avogadro's number, which is the number of particles (atoms, molecules, or ions) in one mole of a substance. The Avogadro's number is:
6.022 x 1023 particles/mol
Therefore, the total number of electrons in 0.1247 moles of methane is:
Total number of electrons = Number of moles x Avogadro's number x Number of electrons per molecule
The number of electrons per molecule of methane is:
Number of electrons per molecule of CH4 = 4 (for the 4 hydrogen atoms) + 1 (for the carbon atom) = 5
Substituting the given values, we get:
Total number of electrons = 0.1247 mol x 6.022 x 1023 particles/mol x 5 electrons/molecule
Total number of electrons = 3.76 x 1023 electrons
Conclusion
The total number of electrons present in 2 grams of methane is 3.76 x 1023 electrons.
Community Answer
calculate the total number of electrons present in 2 gram of methane(C...
it's wrong ans
Attention Class 9 Students!
To make sure you are not studying endlessly, EduRev has designed Class 9 study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Class 9.
|
Explore Courses for Class 9 exam
|
|
Similar Class 9 Doubts
Top Courses for Class 9View all
calculate the total number of electrons present in 2 gram of methane(CH4)
Question Description
calculate the total number of electrons present in 2 gram of methane(CH4) for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about calculate the total number of electrons present in 2 gram of methane(CH4) covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for calculate the total number of electrons present in 2 gram of methane(CH4).
calculate the total number of electrons present in 2 gram of methane(CH4) for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about calculate the total number of electrons present in 2 gram of methane(CH4) covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for calculate the total number of electrons present in 2 gram of methane(CH4).
Solutions for calculate the total number of electrons present in 2 gram of methane(CH4) in English & in Hindi are available as part of our courses for Class 9.
Download more important topics, notes, lectures and mock test series for Class 9 Exam by signing up for free.
Here you can find the meaning of calculate the total number of electrons present in 2 gram of methane(CH4) defined & explained in the simplest way possible. Besides giving the explanation of
calculate the total number of electrons present in 2 gram of methane(CH4), a detailed solution for calculate the total number of electrons present in 2 gram of methane(CH4) has been provided alongside types of calculate the total number of electrons present in 2 gram of methane(CH4) theory, EduRev gives you an
ample number of questions to practice calculate the total number of electrons present in 2 gram of methane(CH4) tests, examples and also practice Class 9 tests.
|
|
Explore Courses for Class 9 exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up
within 7 days!
within 7 days!
Takes less than 10 seconds to signup