erikaortega03
erikaortega03 erikaortega03
  • 23-01-2020
  • Chemistry
contestada

how many carbon atoms are there in 45g of carbon?

Respuesta :

ednorobello92 ednorobello92
  • 23-01-2020

Answer: 2.26x 10²⁴ atoms C

Explanation: To get the number of atoms,

First we convert mass of C to moles

45g C x 1mole C / 12 g C

= 3.75 moles C

Cancel g of C

Next convert moles of C to atoms using Avogadro's Number.

3.75 moles C x 6.022x10²³ atoms C / 1 mole C

Cancel out the units of moles C.

= 2.26x 10²⁴ atoms of C

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