SOLUTION: Sodium-24 is used for medical purposes. The half-life of sodium-24 is 14.9 h. A hospital buys 480 mg. After how long will 3.75mg remain?
Algebra.Com
Question 933433: Sodium-24 is used for medical purposes. The half-life of sodium-24 is 14.9 h. A hospital buys 480 mg. After how long will 3.75mg remain?
Answer by josgarithmetic(39618) (Show Source): You can put this solution on YOUR website!
The question description seems impractical. Is 14.9 hours too short a time to purchase the expected 480 miligrams?
.
The model becomes .
You need a solution for t.
Let A=3.75 and evaluate t.
t=104 hours.
---
4 days 8 hours 30 minutes
CHECK: This should be 7 periods of halflife time.
14.9*7=104.3, checks.
RELATED QUESTIONS
Sodium-24 is used for medical purposes. The half-life of sodium-24 is 14.9 h. A hospital... (answered by josgarithmetic)
Sodium-24 is used for medical purposes. The half-life of sodium-24 is 14.9 h. A hospital... (answered by josgarithmetic)
Sodium-24 is a radioactive isotope of sodium that is used to study circulatory... (answered by josgarithmetic)
A research assistant made 160 mg of radioactive sodium (Na^24) and found that there was... (answered by josgarithmetic)
A radioactive element sodium-24 has a half-life of 14 hours and is used to help locate... (answered by stanbon)
3. An isotope of sodium, Na^24, has a half-life of 15 hours. How many hours will it take... (answered by nerdybill)
Sodium – 24 has a half life of 15 hours. How many grams of a 900 G sample will remain... (answered by ikleyn,Boreal)
A research person made 160 mg of radioactive sodium and found that there was only 20 mg... (answered by ikleyn)
If sodium-24 has a half-life of fifteen hours, and you have a sample that contains 15 kg... (answered by stanbon)