The value of Avogadro's number is
- A. 6.02 x 10^-23
- B. 6.02 x 10^23
- C. 6.02 x 10^24
- D. 3.01 x 10^23
Explanation
One mole of any substance contains 6.02 x 10^23 particles, whether those particles are atoms, molecules or ions. The negative exponent in the first option would make the number vanishingly small, which is the commonest careless slip. Half that value, 3.01 x 10^23, is the number of particles in half a mole.
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