Respuesta :

mhanifa

Answer:

  • 1.25 g

Step-by-step explanation:

Given:

  • Initial mass is m = 80 g.
  • Half life = 10 days
  • Total time = 60 days

Number of half-life periods:

  • r = 60/10 = 6

Equation for remaining sample:

  • s = m*(1/2)^r
  • s = 80*(1/2)^6 = 80/64 = 1.25 g

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