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

The Lunchroom Murder On an otherwise uneventful Thursday afternoon police heard a shot inside the local bistro, Ernie’s Lunchroom. They rushed in and found the

HELP ASAP Foreign Policy is ? The Department of State The Department of Defense

Sets A and I are defined as follows. A={-5, -2,0,2,5} I={-5, -1,1,5,8} Find the union of A and I.

hablar llegar hacer pasar estudiar necesitar escuchar caminar bailar Which verb above would NOT use -ar endings?

Which expression is equivalent to -2 1/4 divide -2/3?

Help due at 12 am God bless you

What is a federal government? 1. A government led by a king or queen 2. A system of government where the leader is given unlimited power 3. A main or central go

in which block does chlorine lies

ASAP simplify and show work. 1. (x^-6)^-3 2. (2x^4)(8x^15) 3. (xy^6)(xy)^3 4. a^4b^0(a^8) 5. (x^2)^2(5x^2)^3

¿Cómo llegó al poder: por las armas o por elecciones?