Register
nitrogen-16 has an original sample soze of 50.0grams. How much of the sample will remain after a total time of 28.52 seconds has passes?
29.0k views
0 votes
nitrogen-16 has an original sample soze of 50.0grams. How much of the sample will remain after a total time of 28.52 seconds has passes?

User YLJ
by
8.2k points

1 Answer

4 votes
mmm, you can work this one out in your head by reversing it.
12.5 = 50g/4
1/4 = 1/2 * 1/2
thus in 14.4 seconds there have been 2 times the half life. 14.4/2 = 7.2
the half life is 7.2 seconds.
User Eugenio
by
7.7k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.5m questions

12.2m answers

Other Questions

Compare and contrast an electric generator and a battery??
How do you balance __H2SO4 + __B(OH)3 --> __B2(SO4)3 + __H2O
Can someone complete the chemical reactions, or write which one do not occur, and provide tehir types? *c2h4+h2o *c3h8 + hcl *c2h2+br2 *c4h10+br2 *c3h6+br2
As an object’s temperature increases, the ____________________ at which it radiates energy increases.
What is the evidence of a chemical reaction when the fireworks go off
Link Copied!