Sodium-24 is used for monitoring blood circulation. When a 1.40-mg sample of sodium-24 is stored for 12 hours, 0.805 mg remain. What is the half-life of sodium-24? 56.8 h 24.8 h 15.0 h 0.0971 h 34.7 h
Added by Marcos B.
Step 1
805}{1.40} \right) / 12 = 2.046 \text{ hours}^{-1} \] Show more…
Show all steps
Your feedback will help us improve your experience
Ma Ednelyn Lim and 59 other Chemistry 101 educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Sodium- 24 is a diagnostic radioisotope used to measure blood circulation time. Calculate the mass (mg) of a $20-\mathrm{mg}$ sample of sodium- 24 that remains after 1 day and 6 hours if sodium- 24 has $t_{1 / 2}=15$ hours.
Sodium- 24 is a diagnostic radioisotope used to measure blood circulation time. How much of a 20 -mg sample of sodium- 24 remains after 1 day and 6 hours if sodium- 24 has $t_{1 / 2}=15$ hours?
Bromine- 82 is used to study the flow and distribution of waste water. A sample contains $0.500 \mathrm{mg}$ of Br-82. After 24 hours, $0.306 \mathrm{mg}$ of $\mathrm{Br}-82$ remains. What is the half-life of $\mathrm{Br}-82 ?$
Recommended Textbooks
Chemistry: Structure and Properties
Chemistry The Central Science
Chemistry
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD