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What will be the atoms in 0.2 mole of sodium (Na)
  • a)
    12.044 × 1022 atoms
  • b)
    6.022 × 1023 atoms
  • c)
    12.044 × 1023 atoms
  • d)
    1.2044 × 1022 atoms
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
What will be the atoms in 0.2 mole of sodium (Na)a)12.044 × 1022 atom...
Given: 0.2moles of sodium.
To find: We have to find the number of atoms.
Solution:
To determine the number of atoms we have to follow the below steps-
Sodium is an alkali metal. It has the symbol Na.
It has the atomic number 11.
It has a mass of 23.
1 mole of sodium contains 6.023×1023 number of atoms.
Thus 0.2 moles of sodium will contain
6.023×1023 × 0.2 = 1.20×1023 number of atoms.
Thus 0.2 moles of sodium contains 1.2×1023 i.e., 13.054 × 1022 number of atoms.
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