Answer:
Explanation:
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In this case, according to the given information about the pH, it is firstly necessary for us to remember that the pH is defined as the potential of the hydrogen ions in the solution and the concentration of those ions represents how many of them are present in the solution; in such a way, it is possible for us use:
Whereas the concentration of hydrogen ions can be calculated as follows:
So we plug in the given pH to obtain:
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Answer: the person standing up
Explanation:
the person has the potential to fall or move from position
We can convert strontium-82 to rubidium-82 by positron emission.
The three main fundamental subatomic particles in an atom are;
In a neutral atom, the number of protons is always equal to the number of electrons.
In strontium-82, there are 44 neutrons, 38 electrons and 38 protons. In rubidium-82, there are 45 neutrons, 37 electrons and 37 protons. We can convert strontium-82 to rubidium-82 by positron emission.
Learn more about positron emission: brainly.com/question/11594309
They do form directly on the equators
Answer:
The freezing point of the solution is - 3.90 °C.
Explanation:
- We can solve this problem using the relation:
<em>ΔTf = (Kf)(m),</em>
where, ΔTf is the depression in the freezing point.
Kf is the molal freezing point depression constant of water = - 1.86 °C/m,
m is the molality of the solution (m = 2.1 m).
<em>∴ ΔTf = (Kf)(m)</em> = (-1.86 °C/m)(2.1 m) =<em> - 3.90 °C.</em>
<em>∵ The freezing point if water is 0.0 °C and it is depressed by - 3.90 °C.</em>
<em>∴ The freezing point of the solution is - 3.90 °C.</em>