Answer:
a) 0.000112 M/s is the average reaction rate between 0.0 seconds and 1500.0 seconds.
b) 0.00011 M/s is the average reaction rate between 200.0 seconds and 1200.0 seconds.
c) Instantaneous rate of the reaction at t=800 s :
Instantaneous rate :
Explanation:
Average rate of the reaction is given as;
a.) The average reaction rate between 0.0 s and 1500.0 s:
At 0.0 seconds the concentration was =
At 1500.0 seconds the concentration was =
0.000112 M/s is the average reaction rate between 0.0 seconds and 1500.0 seconds.
b.) The average reaction rate between 200.0 s and 1200.0 s:
At 0.0 seconds the concentration was =
At 1500.0 seconds the concentration was =
0.00011 M/s is the average reaction rate between 200.0 seconds and 1200.0 seconds.
c.) Instantaneous rate of the reaction at t=800 s :
At 800 seconds the concentration was =
Instantaneous rate :
The electron is a subatomic particle that has a negative charge and a negligible mass. The electron travels around out side the nucleus.
The subatomic particles that are inside the nucleus are protons and neutrons.
The answer to your question is electron.
Acids turn blue litmus red
The word atom comes from the Greek word atomos, which means “undivided” or “uncut.” The Greek philosopher Democritus coined the term in the 5th century BCE. Democritus believed atoms were units of matter that could not be cut into smaller pieces. Atoms became the fundamental units of matter and the building blocks of elements. Eventually, scientists learned about subatomic particles. While no chemical process can divide an atom, nuclear fission and decay can break them into smaller units.
A sample initially contains 5.2 moles of a radioactive isotope. 0.325 moles much of the sample remains after four half-lives.
<h3>What is radioactive isotope?</h3>
A chemical element in an unstable state that emits radiation as it decomposes and becomes more stable. Radioisotopes can be created in a lab or in the natural world. They are utilised in imaging studies and therapy in medicine. Also known as a radionuclide.
There are several uses for radioactive isotopes. Cobalt-60, for instance, is frequently used as a radiation source in medicine to halt the spread of cancer. For diagnostic reasons and in studies on metabolic processes, other radioactive isotopes are utilized as tracers.
After each half life, substance reduces by half after n half life:
A/A₀ = (1/2)ⁿ
Given that, A₀ = 5.2 moles
no. of half-lives (n) = 4
Thus,
A/5.2 = (1/2)⁴
or, A/5.2 = 0.0625
or, A = 0.0625 × 5.2
or, A = 0.325 moles.
To know more about radioactive isotope refer to:
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