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If atomic mass of sodium is 23 a.m.u., then the mass of 3.01 x 1023 sodium atoms is:​
  • a)
    11.5 kg
  • b)
    23 g
  • c)
    0.5 mol
  • d)
    11.5 g
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
If atomic mass of sodium is 23 a.m.u., then the mass of 3.01 x 1023sod...
Mass of 6.022 X 10 23 atoms (1 mole) of sodium = 23 g
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Community Answer
If atomic mass of sodium is 23 a.m.u., then the mass of 3.01 x 1023sod...
Mass of one sodium atom
The atomic mass of sodium is given as 23 a.m.u. which means that the mass of one sodium atom is 23/6.022 × 10^23 g.

Mass of 3.01 × 10^23 sodium atoms
To find the mass of 3.01 × 10^23 sodium atoms, we need to multiply the mass of one sodium atom by the given number of atoms.

Mass of 3.01 × 10^23 sodium atoms = (23/6.022 × 10^23 g) × (3.01 × 10^23)
= 11.5 g

Therefore, the correct answer is option D, 11.5 g.
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