Technetium -99 (half-life = 6.01) is used in the medical imaging. How many half-lives would go by in 44.0h?

Answer

7.32

Q: What is the formula to calculate the number of half-lives given the half-life and the elapsed time? A: The formula is: number of half-lives = elapsed time / half-life.
Q: What is the value of the half-life of Technetium-99? A: The half-life of Technetium-99 is 6.01 hours.
Q: What is the value of the elapsed time? A: The elapsed time is 44.0 hours.
Q: How many half-lives would go by in 44.0 hours? A: number of half-lives = 44.0 / 6.01 = 7.32.