Engineering Board Exam Reviewer · Chemistry · easy

One mole of any substance contains:

  1. 22.4 particles
  2. 1 gram of the substance
  3. 12 particles
  4. 6.022 × 1023 particles

Answer

D. 6.022 × 1023 particles

Solution

The mole is the SI unit of amount of substance.

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  9. The mass number of an atom is the total number of:
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