Answer:
Explanation:
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In this case, since this acid-base neutralization is performed in a 1:2 mole ratio of acid to base as the former is a diprotic acid (two hydrogen ions in the molecule), we can write the following equation:
In such a way, we can solve for the molarity of the acid, given the molarity and concentration of the NaOH base and the volume of the acid:
Thus, we plug in the given data to obtain:
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The stable form of Nitrogen is N-14 and N-15.
- Nearly all proteins contain nitrogen, which is crucial for biochemical processes as well as industrial processes.
- Due to its capacity to form a triple bond with both itself and other elements, nitrogen forms strong bonds. As a result, nitrogen compounds contain a lot of energy. Little was known about nitrogen before one hundred years ago.
- More than 99 percent of all nitrogen found on Earth is found in the most abundant form of nitrogen, nitrogen-14. non-radioactive and stable, it is a substance.
- The most widely used form of nitrogen, 14, is used in biochemicals, biomedical research, food preservation, and agricultural practices.
- The second stable state of nitrogen is nitrogen-15. It is frequently employed in medical preservation and research.
To learn more about nitrogen compounds-
<u>brainly.com/question/25808871</u>
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Answer:
- <u>Second choice: </u><em><u>How does the position of the Sun, moons, planets and stars affect a person's personality traits and daily behavior patterns?</u></em>
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Explanation:
Science or scientific investigations deal with objective phenomena; this is phenomena which can be described by using objective measurements.
The effect of the position of the Sun, moons, planets and stars on a person's personality and daily behavior patterns is not a scientific question because none scientific field deals with that kind of questions.
Only, a pseudoscience, this is a set of beliefs that have not been scientifically proved, may deal with a question about the effect of the position of some heavenly objects can affect a person's personality traits and daily behavior of patterns.
On the other hand, the aspects deal with in the other questions (the mass of a toy car, the speed down a ramp, the heating from different type of pans, how different type of chemicals remove the cell wall of a plant cell) are measurable and testable (falsifiable), which make them objects of science (like physics, chemistry, and biology)
a is the answer because all of the other answers are wrtong
The answer would be: C. 160.3 J/mol*K
To solve this question, you need to know the equation for Gibbs free energy formula. Entropy is expressed as delta S. The temperature would be expressed as T. Don't forget that temperature use Kelvin as unit, not Celsius
The formula would be:
G= H- T*S
130.5 kJ/mol= 178.3kJ/mol - (25+273.15K)*S
(298.15K)*S=178.3kJ/mol - 130.5 kJ/mol
S= (47.8kJ/mol)/ 298.15K=
S= 0.1603 kJ/mol*K= 160.3 J/mol*K ------> 1kJ= 1000J
