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

Photochemistry, How to prepare my seminar paper ?

How to prepare my seminar paper ?

Reversible and irreversible cells for asssignment, REVERSIBLE CELLS AND IRR...

REVERSIBLE CELLS AND IRREVERSIBLE CELLS DEFINITION, TYPES, CLASSIFICATION, REACTION AND DIFFERENCES

Ans., Give the styx code of B4 H10 and which type of bond present in it?

Give the styx code of B4 H10 and which type of bond present in it?

Normality, equation ..

equation ..

Hybrisation, examples of spd arrangement

examples of spd arrangement

Concerted Pericyclic Reactions, Predict the regiochemistry and stereochemis...

Predict the regiochemistry and stereochemistry of the following cycloaddition reactions and indicate the basis for your prediction.

Electronegativity, details about electronegativity

details about electronegativity

Iso-electronic species is, Iso-electronic species is: (1) F - ,O -2   ...

Iso-electronic species is: (1) F - ,O -2              (2) F - , O                (3)  F - , O +                           (4) F - , O +2 Ans:  F - ,O- 2

Which corrodes is faster?, Which of the following is corrodes faster?Iron p...

Which of the following is corrodes faster?Iron pole in sea water or iton pole on the beach? Ans) There are various ways of reducing and preventing this form of corrosion. One w

Iodoform, preparation of iodoform

preparation of iodoform

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