Respuesta :

gabyher0711

Answer:

when asking this question they are looking for the number of Br2 therefore .5 mol

.5*6.022*1023 molecules which equals 3.011*1023 molecules

Explanation:

Its correct

Molar mass of Br_2=160g/mol

No of moles=0.545

Mass

  • moles×Molar mass
  • 0.545(160)
  • 87.2g

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