User Account

All Pages

half life, Chemistry

Assignment Help:
A 64-g sample of germanium-66 is left undisturbed for 12.5 hours. At the end of that period, only 2.0 g remain. What is the half-life of this material?
4. With a half-life of 28.8 years, how long will it take for 1000 mg of strontium-90 to decay to 125mg?
5. Cobalt-60 has a half-life of 5.3 years. If a pellet that has been in storage for 26.5 years contains 14.5 g of cobalt-60, how much of this radioisotope was present when the pellet was put into storage?
6. A 1000 g block of phosphorus-32, which has a half-life of 14.3 days, is stored for 100.1 days. At the end of this period, how much phosphorus- 32 remains?

Related Discussions:- half life

Ions which have the same electronic configuration are those, Ions which hav...

Ions which have the same electronic configuration are those of: (1) Lithium and sodium (2) Sodium and potassium (3) Potassium and calcium (4) Oxygen and chlorine An

STUDYING, HOW TO PREPARE IN EXAMS IN EASY MANNER?

HOW TO PREPARE IN EXAMS IN EASY MANNER?

Electrochemistry, explain how electrophoretic effect affects transport num...

explain how electrophoretic effect affects transport number

Cells, what evidence is there that all cells have a common ancestor?

what evidence is there that all cells have a common ancestor?

How do we define the molecularity of a reaction, The number of species part...

The number of species participating in the slowest step of the reaction is known as molecularity of the reaction.

Can you explain texture, Q. Can you explain Texture? Texture indicates ...

Q. Can you explain Texture? Texture indicates the characteristic of a food and would include descriptive parameters like graininess, softness, chewiness, brittleness etc. The t

heavy water, what is the reaction of heavy wate

what is the reaction of heavy water

Filtrate preparation., how is the filtrate prepared in basic radical testin...

how is the filtrate prepared in basic radical testing

Thermodynamics, free energy and spontaeity

free energy and spontaeity

Fundamental concepts, what is attacking reagent

what is attacking reagent

Write Your Message!

Captcha
Order Assignment

Featured Services

Order Now

Popular Subjects

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +91-977-207-8620

Phone: +91-977-207-8620

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd