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How do you work out half lives of concentrations?
A concentration is:The amount of a specified substance in a unit amount of another substanceA half life is either:The time taken for the radioactivity of a specified isotope to fall to half its original valueThe time required for any specified property to decrease by halfAs a concentration is a fixed property, your question is meaningless and can not be answered.
What is the longest half life of a benzo?
According to University of Waterloo research, the half-life of benzene in soil/groundwater is between 10 - 720 days.
What is an isotope that the time it takes it to decay to half its original mass?
c.half-life
What is the half life of promethium?
Promethium 145 has a half life of 17.7 years. Promethium 146 has a half life of 5.53 years. Promethium 147 has a half life of o.22 years.
Compared to the length of time for the first half-life of a sample of a radioactive isotope the length of time for the second half-life is?
The length of time for the second half-life is the same as the first half-life. Each half-life represents the time it takes for half of the radioactive atoms in a sample to decay. This process continues exponentially with each subsequent half-life.
How can one determine the half-life of a substance from a graph?
To determine the half-life of a substance from a graph, locate the point where the substance's concentration is half of its initial value. Then, find the time it took for the substance to reach that concentration. This time interval is the half-life of the substance.
How do you get half-life from a graph?
You can get half-life from a graph by picking two points where the (radio)activity decays to one half its value. The interval of time of those two points is the half-life. You can confirm by picking more points, again with a half (radio)activity value and see that the time is the same in each case.
Uranium-235 has a half-life of 700 million year. how long does it take a 100 gram sample of uranium to decay to a mass of 50 grams?
If a radioactive isotope has a half-life of 4 years, than 0.125 (0.53) of the isotope will remain after 12 years, or 3 half-lives.The question asked about Uranium. There is no isotope of Uranium with a half-life of 4 years. The closest is 232U92, which has a half-life of 68.9 years.Reference: http://www.nndc.bnl.gov/chart/
Diagram of a half-life graph?
if they give you a diagram of half life, it is very hard to find the answer. unfortunatly my test is about that adn I don't know how to do it. please help me? i'm not dissappointed yet,
What does a half-life decay graph illustrate and how does it provide insight into the rate of decay of a radioactive substance?
A half-life decay graph shows how the amount of a radioactive substance decreases over time. It helps us understand the rate of decay by demonstrating the time it takes for half of the substance to decay. The graph provides insight into the stability and decay process of the substance, allowing scientists to predict how much will remain at any given time.
What real life situation might a curve graph be applicable?
Earnings over an individual's lifetime or times for running a half-marathon over a lifetime
What is the formula for half-life?
In chemistry, the half-life of a reaction is defined as the time needed for the concentration of a reactant to decrease to half of its initial concentration. According to that definition, the half-life of the reaction will be t1/2 = 0,693/k where k is the equilibrium constant for that reaction at a specific temperature.
A graph of pairs of numbers that represent real-life situations It is a way to analyze the relationship between two quantities?
A coordinate graph is a graph of pairs of numbers that represent real-life situations.
Does Half life opposing force require Half life?
No. Half Life: Opposing Force does not require neither Half Life nor Half Life: Blue Shift.
How do you work out half lives of concentrations?
A concentration is:The amount of a specified substance in a unit amount of another substanceA half life is either:The time taken for the radioactivity of a specified isotope to fall to half its original valueThe time required for any specified property to decrease by halfAs a concentration is a fixed property, your question is meaningless and can not be answered.
What is the Life span of man according to biblical records?
In the book of Psalms in the bible , mans life is to be three score and a half . Or 70 years.
The half life of uranium 235 is 700 million years After 1.4 billion or 1 400 million years what fraction of the original amount of uranium 235 remains?
A half life pertains to the time it takes for exactly half of a substance to disappear. So, if U235 has a half life of 700 million years, it will take 700 million years for half of it to decay. That would leave .5kg or 500g.
