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Which of the following has highest number of atoms? (Atomic mass of Ag = 108 u)
- a)2 g of butane (C4H10)
- b)2 g of nitrogen
- c)2 g of silver
- d)2 g of water
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Which of the following has highest number of atoms? (Atomic mass of A...
Explanation:
Number of Atoms Calculation:
- To calculate the number of atoms in a substance, we need to use the formula:
- Number of atoms = (Number of moles * Avogadro's number)
Given Information:
- Atomic mass of Ag = 108 u
- Butane (C4H10):
- Atomic mass of C = 12 u
- Atomic mass of H = 1 u
- Nitrogen:
- Atomic mass of N = 14 u
- Water (H2O):
- Atomic mass of H = 1 u
- Atomic mass of O = 16 u
Calculations:
- For butane (C4H10):
- Total atomic mass = (4 * 12) + (10 * 1) = 48 + 10 = 58 u
- Number of moles = Mass / Molar mass = 2 g / 58 g/mol ≈ 0.0345 mol
- Number of atoms = 0.0345 mol * 6.022 x 10^23/mol = 2.08 x 10^22 atoms
- For nitrogen:
- Number of moles = 2 g / 14 g/mol ≈ 0.143 mol
- Number of atoms = 0.143 mol * 6.022 x 10^23/mol = 8.61 x 10^22 atoms
- For silver (Ag):
- Number of moles = 2 g / 108 g/mol ≈ 0.0185 mol
- Number of atoms = 0.0185 mol * 6.022 x 10^23/mol = 1.12 x 10^22 atoms
- For water:
- Total atomic mass = 2 + 16 = 18 u
- Number of moles = 2 g / 18 g/mol ≈ 0.111 mol
- Number of atoms = 0.111 mol * 6.022 x 10^23/mol = 6.67 x 10^22 atoms
Conclusion:
- The substance with the highest number of atoms is butane (C4H10) with approximately 2.08 x 10^22 atoms.
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Community Answer
Which of the following has highest number of atoms? (Atomic mass of A...
2 g butane → moles = 2/58
Number of atoms
2 g nitrogen → moles = 2/58
Number of atoms
2 g silver → moles = 2/108
Number of atoms
2 g water → moles = 2/18
Number of atoms
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Which of the following has highest number of atoms? (Atomic mass of Ag = 108 u)a)2 g of butane (C4H10)b)2 g of nitrogenc)2 g of silverd)2 g of waterCorrect answer is option 'A'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which of the following has highest number of atoms? (Atomic mass of Ag = 108 u)a)2 g of butane (C4H10)b)2 g of nitrogenc)2 g of silverd)2 g of waterCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following has highest number of atoms? (Atomic mass of Ag = 108 u)a)2 g of butane (C4H10)b)2 g of nitrogenc)2 g of silverd)2 g of waterCorrect answer is option 'A'. Can you explain this answer?.
Which of the following has highest number of atoms? (Atomic mass of Ag = 108 u)a)2 g of butane (C4H10)b)2 g of nitrogenc)2 g of silverd)2 g of waterCorrect answer is option 'A'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which of the following has highest number of atoms? (Atomic mass of Ag = 108 u)a)2 g of butane (C4H10)b)2 g of nitrogenc)2 g of silverd)2 g of waterCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following has highest number of atoms? (Atomic mass of Ag = 108 u)a)2 g of butane (C4H10)b)2 g of nitrogenc)2 g of silverd)2 g of waterCorrect answer is option 'A'. Can you explain this answer?.
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