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 established the Federal Deposit Insurance Corporation (FDIC), with the greater goal of restoring public confidence in the banking system? Agricultural Adju

A 3.00-newton force causes a spring to stretch 60.0 centimeters. Calculate the spring constant of this spring. [Show all work, including the equation and substi

A taxicab starts at (1, -2) on the grid. It goes 3 blocks east and 1 block south to pick up a passenger. Then it goes 6 blocks west and 5 blocks north and drops

what is 1/5 of 25? how do we find that answer

What do you think is the most compelling scientific reason not to build offshore wind

Which explains the basis of the Biuret test? Sudan III dye binds to lipids and changes color. Iodine fits into the coils of starch polymers and changes color. A

Sebastian swam laps every day in the community swimming pool. he swam 45 minutes each day, 5 days a week, for 12 weeks. in that time, he swam 1,800 laps. what w

What is the total number of valence electrons in an atom of sulfur in the ground state? A. 6 B. 8 C. 3 D. 4

What does dependency reversal mean?

What rhetorical approach examines similarities between two or more people, places, things, or ideas?