1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
galina1969 [7]
3 years ago
5

The half life of oxygen is 2 minutes. What fraction of a sample of 0.15 will remain after 5 half lives?​

Chemistry
1 answer:
Natasha_Volkova [10]3 years ago
3 0

Answer:

3.13%.

Explanation:

The following data were obtained from the question:

Original amount (N₀) = 0.15

Half life (t½) = 2 mins

Number of half-life (n) = 5

Fraction of sample remaining =.?

Next, we shall determine the amount remaining (N) after 5 half-life. This can be obtained as follow:

Amount remaining (N) = 1/2ⁿ × original amount (N₀)

NOTE: n is the number of half-life.

N = 1/2ⁿ × N₀

N = 1/2⁵ × 0.15

N = 1/32 × 0.15

N = 0.15/32

N = 4.69×10¯³

Therefore, 4.69×10¯³ is remaining after 5 half-life.

Finally, we shall the fraction of the sample remaining after 5 half-life as follow:

Original amount (N₀) = 0.15

Amount remaining (N) = 4.69×10¯³

Fraction remaining = N/N₀ × 100

Fraction remaining = 4.69×10¯³/0.15 × 100

Fraction remaining = 3.13%

You might be interested in
Nitration of 1,4−dimethylbenzene (p−xylene) gives a single product having the molecular formula c8h9no2 in high yield. draw this
GarryVolchara [31]
Structure is in document below.
The mononitration of p-xylene can be easily carried out at 30 degrees C.
Para-xylene<span> (</span><span>p-xylene</span><span>) is an </span>aromatic hydrocarbon, <span>one of the three </span>isomers<span> of </span>dimethylbenzene. Para-xylene is colorless and highly flammable, not acutely toxic and has some <span>narcotic effects.</span>
Download docx
8 0
3 years ago
Chlorination of ethane yields, in addition to ethyl chloride, a mixture of two isomeric dichlorides. what are the structures of
jeyben [28]
CH_3 CH_2 Cl has two different types of hydrogen. On further chlorination they are being substituted by chlorine to give two isomeric dichlorides

The structures of the two chlorides are shown below.

Where Hb is replaced by Cl and Ha is replaced by Cl

5 0
3 years ago
11.
andrew11 [14]
B. Groups (families)
6 0
3 years ago
What is an animal that eats producers called?​
SCORPION-xisa [38]

Answer:

A consumer

Explanation:

8 0
3 years ago
Read 2 more answers
How does a scientist form a hypothesis?
MrMuchimi

Explanation: <em>The hypothesis is a prediction, but it involves more than a guess. Most of the time, the hypothesis begins with a question which is then explored through background research. It is only at this point that researchers begin to develop a testable hypothesis.</em>

(Unless you are creating an exploratory study, your hypothesis should always explain what you expect to happen)

8 0
3 years ago
Other questions:
  • What was the significance of Thompson’s Plum Pudding model of the atom?
    8·1 answer
  • How do the leathery pads on the bottom of camel's feet help a camel? It is for a web quest thing
    8·1 answer
  • During the bromination <br> of methane the free radical Ch3 is generated
    10·2 answers
  • How many electrons in an atom with the atomic number of 45
    8·1 answer
  • What type of volcano is mt. Etna?!?! Also, how was it formed?
    15·2 answers
  • Which set of changes does not involve breaking or forming chemilcal bonds
    14·1 answer
  • An electromagnetic wave has a wavelength of 0.12 meters. what is that in nanometers?
    13·1 answer
  • Weeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
    6·1 answer
  • Cual es la identidad de hierro?
    7·1 answer
  • How can teh human body looose heat? (conduction, convecion, radiation) and WHY
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!