Answer: Mass of the condensed vapor is 21.35 grams.
Explanation: As a gas, the Ideal Gas Law can be used to determine how many mols there are in the flask on the conditions described in question.
Temperature in K: 273 + 99.3 = 372.4K
Pressure in mmHg: P = 760.5 mmHg
Volume in L: V = 496.3.
= 0.5 L
Universal Constant of Gases in mmHg: R = 62.36 L.mmHg.K⁻¹.mol⁻¹
PV = nRT
n = 
n = 
n = 0.1625
To determine the mass in grams:
n = 
m = nM
m = 0.1625.131.4
m = 21.35
On the conditions cited above, there are <u>21.35 grams</u> of the unknown condensed vapor
Answer:
pOH = 8.02
Explanation:
<u>Given:</u>
[OH-] concentration for HNO3 solution = 9.50*10^-9 M
<u>To determine:</u>
pOH of the above solution
<u>Explanation:</u>
pOH of a given solution refers to the concentration of OH- ions i.e. the degree of basicity of that solution
![pOH = -log[OH-]\\\\For\ the \ HNO3\ solution:\\\\pOH = -log(9.50*10^{-9}) = 8.02](https://tex.z-dn.net/?f=pOH%20%3D%20-log%5BOH-%5D%5C%5C%5C%5CFor%5C%20the%20%5C%20HNO3%5C%20solution%3A%5C%5C%5C%5CpOH%20%3D%20-log%289.50%2A10%5E%7B-9%7D%29%20%3D%208.02)
Explanation:
The scientists realized that the properties of elements related to each other depending on relational properties of their atoms. They realized that atoms of different elements shared some properties depending on the number of electrons they have in their valence orbital shells and atomic mass numbers. These atomic properties determined the elements' shared properties such as texture, reactivity, electric conductivity and etcetera. Arranging the atoms in a periodic table would therefore ideally make it easier to decipher the shared similarities and differences between atoms of different elements, such as physical and chemical properties.
Learn More:
For more on the periodic table check out these questions;
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Primary consumer just remember the “primary” (first) consumer so the one that eats a heterotroph
If a sample transmits 75% of the incident light, its absorbance would be 0.125 Au.
The absorbance of a sample is calculated from the percentage of incident light transmitted using the following formula:
Absorbance = 2 – log(%T), where %T = percentage of incident light transmitted.
In this case, %T = 75, the formula becomes:
Absorbance = 2 - log 75
= 2 - 1.875
= 0.125 Au
More on absorbance can be found here: brainly.com/question/2395738
