Top Posters
Since Sunday
g
3
3
2
J
2
p
2
m
2
h
2
s
2
r
2
d
2
l
2
a
2
This topic contains 1 attachment.
Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
New Topic  
chemDO chemDO
wrote...
Go to Answer
Posts: 2626
Rep: 8 0
8 years ago
The half-life of 222Rn is 3.80 days. If a sample contains 36.0 g of Rn-222, how many years will it take for the sample to be reduced to 1.00 mg of Rn-222?
A) 19.7
B) 0.1597
C) 0.0234
D) 8.53
E) none of the above
Textbook 
Chemistry - The Central Science

Chemistry - The Central Science


Edition: 13th
Authors:
Read 900 times
3 Replies
Replies
Answer verified by a subject expert
shutchkashutchka
wrote...
#1
Top Poster
Posts: 2569
Rep: 143 1
8 years ago
Sign in or Sign up in seconds to unlock everything for free
More solutions for this book are available here
 Attached file 
Thumbnail(s):
You must login or register to gain access to this attachment.
dttexas
Chemistry Major, 2019

Related Topics

chemDO Author
wrote...
#2
8 years ago
Got 10/10 on my quiz, thanks!
wrote...
#3
8 years ago
Happy to help, have a fine day
Chemistry Major, 2019
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1083 People Browsing
 133 Signed Up Today
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 235
  
 338
  
 9854
Your Opinion
How often do you eat-out per week?
Votes: 79
Previous poll results: Do you believe in global warming?