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

Metal nitrosyls, what r metal nitrosyls and metallocenes

what r metal nitrosyls and metallocenes

Assignment, I have a very difficult chemistry online assignment due in and ...

I have a very difficult chemistry online assignment due in and I need help.

Hydrogen bonding, how H+ ions are formed

how H+ ions are formed

Irreversible Reactions, characteristics of irreversible reaction

characteristics of irreversible reaction

Some basic concept of chemistry, explain in long answer LAW OF CHEMICAL COM...

explain in long answer LAW OF CHEMICAL COMBINATION

Eletronic displacement in a covalent bond, why halogens are both +R and -I ...

why halogens are both +R and -I groups?

Rancidification - chemical properties of oils and fats, Rancidification - c...

Rancidification - chemical properties of oils and fats On long storage in contact along with air and moisture, oils and fats develop unlikable smell. The process is termed as r

Electrochemical methods of analysis, potential sources of error associated ...

potential sources of error associated with coulometric titrations

The total magnetic quantum numbers for d-orbital is given, The total magnet...

The total magnetic quantum numbers for d-orbital is given by: (1) 2        (2) 0, ± 1, ± 2      (3) 0, 1, 2           (4) 5 ans:  5

Robert brown (Brownian motion), timeline about him

timeline about him

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