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

When muscle cells have more glucose than they need for energy, they may store some of the excess as?

If a protein is denatured, what level of protein structure would remain intact

devise a plan for simplifying th fourth root of a number that is not a perfect fourth power.

Which statement about the reliability of information on the Internet is false? A contributor’s credentials show that he or she is likely to provide reliable

What was the impact of henry ford's automobile on the united states? answer.com?

A circle has an area of 40 square meters. Which answer is closest to the measure of its diameter? A.1.8 meters B.4 meters C.3.6 meters D.7.1

What’s the answer ??????

In the united states what is the goal of public health

A student reports three trials to measure the density of an unknown metal. The percent error in these trials is given in the table. Trial Count Percent Error T

Name the high tech method of measuring pulse rate