jessileblanc12 jessileblanc12
  • 21-01-2016
  • Chemistry
contestada

How many atoms is 87.4 grams potassium?

Respuesta :

dragonflame58 dragonflame58
  • 22-01-2016
1.34565x10^24 atoms

You set up a conversion factor. Since 39.1 is the atomic mass of potassium,
87.4g K( 1 mol/39.1g)= 2.2353mol
Since 1 mol has 6.02x10^23 atoms, you can use another conversion factor to find atoms
2.2353mol K(6.02x10^23 / 1 mol) = 1.34565x10^24 atoms
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