menu
Qammunity.org
Login
Register
My account
Edit my Profile
Private messages
My favorites
What is the total mass of 222rn remaining in an original 160 milligram sample?
Ask a Question
Questions
Unanswered
Tags
Ask a Question
What is the total mass of 222rn remaining in an original 160 milligram sample?
asked
Nov 24, 2018
161k
views
1
vote
What is the total mass of 222rn remaining in an original 160 milligram sample?
Mathematics
high-school
Lsimmons
asked
by
Lsimmons
8.7k
points
answer
comment
share this
share
0 Comments
Please
log in
or
register
to add a comment.
Please
log in
or
register
to answer this question.
1
Answer
4
votes
n x / 160 = - k x 19.1
rate of reaction is required
222Rn has a half-life of 3.8235 d.
160 Ă— .5^( 19.1/3.8235 ) = 5.0 mg
5.0 mg is the total mass of 222Rn remaining in an original 160-milligram sample of 222Rn.
Stefan Svrkota
answered
Nov 28, 2018
by
Stefan Svrkota
8.3k
points
ask related question
comment
share this
0 Comments
Please
log in
or
register
to add a comment.
← Prev Question
Next Question →
Related questions
asked
Oct 22, 2024
163k
views
In a 3×10⁹-year-old rock that originally contained some 238U, which has a half-life of 4.5×10⁹ years, we expect to find some 238U remaining in it. Why are 226Ra, 222Rn, and 210Po also found in such a rock,
Jonahb
asked
Oct 22, 2024
by
Jonahb
8.6k
points
Physics
high-school
1
answer
5
votes
163k
views
asked
Oct 25, 2018
52.4k
views
give the number of protons, electrons, and neutrons in the following atoms a. 90Zr b. 202Hg c. 58Ni d.222Rn
Jagraj Singh
asked
Oct 25, 2018
by
Jagraj Singh
8.1k
points
Chemistry
middle-school
1
answer
0
votes
52.4k
views
asked
Nov 8, 2018
181k
views
The half-life of 222Rn is approximately 4 days. A sealed vessel is found to contain 1.5 mg of 222Rn. How much radon would have been present 12 days before this measurement was taken?
Ali Asad
asked
Nov 8, 2018
by
Ali Asad
7.8k
points
Chemistry
college
1
answer
1
vote
181k
views
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.
9.4m
questions
12.2m
answers
Categories
All categories
Mathematics
(3.7m)
History
(955k)
English
(903k)
Biology
(716k)
Chemistry
(440k)
Physics
(405k)
Social Studies
(564k)
Advanced Placement
(27.5k)
SAT
(19.1k)
Geography
(146k)
Health
(283k)
Arts
(107k)
Business
(468k)
Computers & Tech
(195k)
French
(33.9k)
German
(4.9k)
Spanish
(174k)
Medicine
(125k)
Law
(53.4k)
Engineering
(74.2k)
Other Questions
How do you can you solve this problem 37 + y = 87; y =
What is .725 as a fraction
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
Twitter
WhatsApp
Facebook
Reddit
LinkedIn
Email
Link Copied!
Copy
Search Qammunity.org