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Calculate the total number of electrons present in 1.4 g of dinitrogen gas.
- a)5.0832 × 1023 electrons
- b)4.4521 × 1023 electrons
- c)4.2154 × 1023 electrons
- d)4.6329 × 1023 electrons
Correct answer is option 'C'. Can you explain this answer?
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Calculate the total number of electrons present in 1.4 g of dinitrogen...
moles of N2 =1.4/28. And 1 mole of N2= 6.022x1023 molecules of N2 And 1 molecule of N2 has 14 electrons
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Calculate the total number of electrons present in 1.4 g of dinitrogen...
Calculation of total number of electrons in 1.4 g of dinitrogen gas
1. Find the molar mass of dinitrogen gas (N2)
- The molar mass of nitrogen (N) is 14.01 g/mol.
- Since dinitrogen gas consists of two nitrogen atoms, the molar mass of dinitrogen gas (N2) is 2 * 14.01 g/mol = 28.02 g/mol.
2. Calculate the number of moles of dinitrogen gas
- Given mass of dinitrogen gas = 1.4 g
- Number of moles = Mass / Molar mass = 1.4 g / 28.02 g/mol ≈ 0.05 mol
3. Use Avogadro's number to find the total number of molecules of dinitrogen gas
- 1 mol of any substance contains 6.022 x 10^23 molecules (Avogadro's number).
- Number of molecules in 0.05 mol = 0.05 mol * 6.022 x 10^23 molecules/mol ≈ 3.011 x 10^22 molecules
4. Calculate the total number of electrons in dinitrogen gas
- Each nitrogen atom has 7 electrons.
- Since dinitrogen gas consists of 2 nitrogen atoms, total electrons in 1 molecule = 2 * 7 = 14 electrons.
- Total electrons in 3.011 x 10^22 molecules = 3.011 x 10^22 molecules * 14 electrons/molecule ≈ 4.2154 x 10^23 electrons
Therefore, the total number of electrons present in 1.4 g of dinitrogen gas is approximately 4.2154 x 10^23 electrons. Hence, the correct answer is option (c).
1. Find the molar mass of dinitrogen gas (N2)
- The molar mass of nitrogen (N) is 14.01 g/mol.
- Since dinitrogen gas consists of two nitrogen atoms, the molar mass of dinitrogen gas (N2) is 2 * 14.01 g/mol = 28.02 g/mol.
2. Calculate the number of moles of dinitrogen gas
- Given mass of dinitrogen gas = 1.4 g
- Number of moles = Mass / Molar mass = 1.4 g / 28.02 g/mol ≈ 0.05 mol
3. Use Avogadro's number to find the total number of molecules of dinitrogen gas
- 1 mol of any substance contains 6.022 x 10^23 molecules (Avogadro's number).
- Number of molecules in 0.05 mol = 0.05 mol * 6.022 x 10^23 molecules/mol ≈ 3.011 x 10^22 molecules
4. Calculate the total number of electrons in dinitrogen gas
- Each nitrogen atom has 7 electrons.
- Since dinitrogen gas consists of 2 nitrogen atoms, total electrons in 1 molecule = 2 * 7 = 14 electrons.
- Total electrons in 3.011 x 10^22 molecules = 3.011 x 10^22 molecules * 14 electrons/molecule ≈ 4.2154 x 10^23 electrons
Therefore, the total number of electrons present in 1.4 g of dinitrogen gas is approximately 4.2154 x 10^23 electrons. Hence, the correct answer is option (c).
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Calculate the total number of electrons present in 1.4 g of dinitrogen gas.a)5.0832×1023electronsb)4.4521×1023electronsc)4.2154×1023electronsd)4.6329×1023electronsCorrect answer is option 'C'. Can you explain this answer?
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Calculate the total number of electrons present in 1.4 g of dinitrogen gas.a)5.0832×1023electronsb)4.4521×1023electronsc)4.2154×1023electronsd)4.6329×1023electronsCorrect answer is option 'C'. Can you explain this answer? for Class 11 2024 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about Calculate the total number of electrons present in 1.4 g of dinitrogen gas.a)5.0832×1023electronsb)4.4521×1023electronsc)4.2154×1023electronsd)4.6329×1023electronsCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Calculate the total number of electrons present in 1.4 g of dinitrogen gas.a)5.0832×1023electronsb)4.4521×1023electronsc)4.2154×1023electronsd)4.6329×1023electronsCorrect answer is option 'C'. Can you explain this answer?.
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