minecraftplayeovohl1
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 Goddessty18
  • 14-03-2020

Answer:

50 because it’s a ratio problem

Explanation:

Answer Link
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]

Answer Link

Otras preguntas

Which person will experience what happens to sounds due to the Doppler effect?
please awnser these questions
Martin says that 6 is a common factor of 42, 36 and 50. Is he correct? Explain fully.
What's the number, if one-fourth of it is 12?
I need help with this
1.The Mutlidraft Reading strategy helps when reading complex texts because... 2.The Close Reading strategy helps when reading complex texts because... 3. The
PLEASE HELP ASAP! I AM TIMEDDDDDDDDDD
Chapter 2, why does Charles Wallace want to take Meg to visit Mrs. Whatsit​
2.08, question 7 Two prokaryotes are shown in the figure (The first depicts a respiratory membrane in an aerobic prokaryote and the second depicts a thylakoid m
Help Please :) How many chromosomes should a cell used in sexual reproduction have? - half as many as the species normally has in its diploid cells, so that the