subject
Chemistry, 15.10.2020 07:01 okstyles

Janice needs to have a gastro-intestinal study. So she is given 375 mg of radiocontrast dye containing Barium-142. The half-life of Ba-142 is 10.6 minutes and its decay is followed by -ray. After one half -life, of Ba-142 remains . After 31.8 minutes , of Ba-142 remains . After half-lives, 11.7 mg of Ba - 142 remains . After minutes , 0.366 mg of Ba - 142 remains. Finally, after approximately 3.5 hours - half-lives , only 0.000358 mg remains . The dye is no longer visible to the Xray and Janice's study is over .

ansver
Answers: 3

Another question on Chemistry

question
Chemistry, 22.06.2019 03:30
The boiling point of liquids is very high what does it indicate
Answers: 1
question
Chemistry, 22.06.2019 09:00
Plz mark brainliest 30 points1) find the momentum of a 12 kg snowball that is rolling with a velocity of 9 m/s.2) an 8 ball with a mass of .5 kg is sitting at rest. it is hit by the cue ball (1 kg) traveling at 2.5 m/s. if the cue ball is at rest after the collision, how fast is the 8 ball traveling after the collision? 3) two football players are running toward each other. if the offensive player is 75 kg and is running 8 m/s, how fast must the 60 kg defensive player run in order for the two players to hit and stop?
Answers: 1
question
Chemistry, 22.06.2019 17:00
According to the kinetic-molecular theory, what happens to a liquid when it is transferred from one container to another? the volume and the shape stay the same. the volume increases to fill the new container, but the shape stays the same. the volume stays the same, but the shape changes to fit the new container. the volume and the shape change to fill the new container.
Answers: 2
question
Chemistry, 22.06.2019 17:30
What type of organic molecule comprises the majority of a potato?
Answers: 1
You know the right answer?
Janice needs to have a gastro-intestinal study. So she is given 375 mg of radiocontrast dye containi...
Questions
question
Mathematics, 13.05.2021 01:00
question
Mathematics, 13.05.2021 01:00
question
Mathematics, 13.05.2021 01:00