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

The area of an 16-cm-wide rectangle is 336 cm2. What is its length? The length is cm.
pls help me is for today​
Ezra has $15 to spend on a taxi ride. The taxi company charges a flat rate of $3, plus $2.00 per mile. What is the maximum amount of miles Ezra can afford to tr
Which group of people in society do you think are the most lonely? Why? thanks if you can find the answer
Speed of a train is 5m/s, find its value in km/hr.​
Qadir Corporation, which has only one product, has provided the following data concerning its most recent month of operations: Selling price
A food worker suspects there are mice in the food establishment.
Slope right unit rate and rate change can all be used simultaneously
The Affordable Care Act provides that individuals and families may take a tax credit called the ______ to help them purchase health insurance through a health i
Find the value of a2 + b when a = -2 and b = 5​