The sample of oxygen gas was collected through water displacement. So, the gas collected will be a mixture of oxygen and water vapor.
Given that the total pressure of the mixture of gases containing oxygen and water vapor = 749 Torr
Vapor pressure of pure water at 
=25.81mmHg
= 
According to Dalton's law of partial pressures,
Total pressure = Partial pressure of Oxygen gas + Partial pressure of water
749 Torr = Partial pressure of Oxygen gas + 25.81 Torr
Partial pressure of Oxygen gas = 749 Torr - 25.81 Torr = 723.19 Torr
Therefore the partial pressure of Oxygen gas in the mixture collected will be 723.19 Torr
Answer:
a. -58 millivolts
Explanation:
The given Nernst equation is:
![E_{ion} = 58 millivolts /z \Big[ log_{10} \Big( \dfrac{[ion]_{out}}{[ion]_{in}}\Big) \Big]}](https://tex.z-dn.net/?f=E_%7Bion%7D%20%3D%2058%20millivolts%20%2Fz%20%5CBig%5B%20log_%7B10%7D%20%5CBig%28%20%5Cdfrac%7B%5Bion%5D_%7Bout%7D%7D%7B%5Bion%5D_%7Bin%7D%7D%5CBig%29%20%5CBig%5D%7D)
The equilibrium potential given by the Nernst equation can be determined by using the formula:
![E_{Cl^-} = \dfrac{2.303*R*T}{ZF} \times log \dfrac{[Cl^-]_{out}} {[Cl^-]_{in}}](https://tex.z-dn.net/?f=E_%7BCl%5E-%7D%20%3D%20%5Cdfrac%7B2.303%2AR%2AT%7D%7BZF%7D%20%5Ctimes%20log%20%5Cdfrac%7B%5BCl%5E-%5D_%7Bout%7D%7D%20%7B%5BCl%5E-%5D_%7Bin%7D%7D)
where:
gas constant(R) = 8.314 J/K/mol
Temperature (T) = (20+273)K
= 298K
Faraday constant F = 96485 C/mol
Number of electron on Cl = -1
Answer:
True
Explanation:
If a question cannot be tested and observed, it cannot simply be answered by science.
Science works with observable and testable ideas and not on metaphysics.
- Science presents a methodical approach into investigating phenomenon and answering likely questions in a logical manner.
- The body of facts and data gathered through observations and tests are used to ramify the conclusion of a scientific study.
- Without such, it is impossible to do the work of science.
