Top Posters
Since Sunday
28
o
8
d
6
C
5
A
5
H
5
n
4
t
4
d
4
p
4
r
4
s
4
This topic contains 1 attachment.
Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
New Topic  
Whelan Whelan
wrote...
Go to Answer
Posts: 3158
Rep: 40 1
7 years ago
Neptunium-239 has a half-life of 2.35 days. How many days must elapse for a sample of 239Np to decay to 3.00% of its original quantity?
A) 0.0841 days
B) 0.967 days
C) 1.03 days
D) 11.9 days
Textbook 
Introductory Chemistry Essentials

Introductory Chemistry Essentials


Edition: 5th
Author:
Read 868 times
2 Replies
Replies
Answer verified by a subject expert
hbutler2hbutler2
wrote...
#1
Top Poster
Posts: 3070
Rep: 880 1
7 years ago
Sign in or Sign up in seconds to unlock everything for free
More solutions for this book are available here
D
I'm a chemical engineer! Slight Smile

Related Topics

Anonymous
wrote...
#2
A week ago
Neptunium-239 has a half life of 2.35 days. How many days must elapse for a sample of 239Np to decay to 0.100% of its original quantity?
Attached file
Thumbnail(s):
You must login or register to gain access to this attachment.
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  231 People Browsing
 285 Signed Up Today
Start New Topic Take the Tour Study Tips Study ToolsNew Topics Trending Browse by Textbook
Related Images
  
 987
  
 352
  
 224
Your Opinion
Previous poll results: Who's your favorite biologist?