kingdesto9789 kingdesto9789
  • 02-08-2022
  • Chemistry
contestada

How many half-lives have passed in a sample that originally contained 5000 parent isotopes but now has only 625?

Respuesta :

jsimpson11000 jsimpson11000
  • 02-08-2022

Answer:

3 half lives

Explanation:

5000 * (1/2)^n  = 625           where n = number of half lives

log ( 625/5000) / log(1/2) = n  = 3

5000         2500     1250      625  

Answer Link

Otras preguntas

what are three kingdoms were created when aledanders empire after he death
Why do body systems work together? Provide an example.​
Which statement does not describe conditions that led to the war of 1812
Can somebody help me please??
Please help! I don't get this math!
15.5% of what number is $145.70?
Exposure to the HIV virus doesn't necessarily mean that a person will develop AIDS. Some people have genetic resistance to infection by HIV. Dr. Stephen O'Brien
Which is the function of context clues?
What is the difference between stem and leaf plot and dot plot?
Place the numbers in ascending order: {-0.104, -0.1, -0.1041, and 0.14} A) -0.1041, -0.104, -0.1, 0.14 B) -0.1041, -0.104, 0.14, and -0.1 C) -0.104, -0.1,