minecraftplayeovohl1 minecraftplayeovohl1

14-03-2020
Chemistry

contestada

Oxygen 22 has a half life of 2.25 seconds. What percent of the sample is left after 2.25 seconds?

Respuesta :

Goddessty18 Goddessty18

14-03-2020

Answer:

50 because it’s a ratio problem

Explanation:

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1610430ouhbfa 1610430ouhbfa

19-03-2020

Answer:

So we got 50% left after 2.25 seconds

Explanation:

The left sample is given by

[tex]m=m_{0}.2^\frac{-t}{T}[/tex]

where T is the half-life

After 2.25 s

[tex]m=m_{0}.2^\frac{-2.25}{2.25}=m_{0}.\frac{1}{2}[/tex]

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