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calculate the total number of electrons present in 2 gram of methane(CH4)
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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.
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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).
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