Answer:
An <u>Orbital </u>is the probability distribution of an electron in an atom or molecule.
Explanation:
As we know atom consists of sub-particles commonly known as protons, neutrons and electrons. The outer space around the nucleus where the probability of finding electrons is maximum is known as orbital. As the electrons are not precisely ordered around the nucleus hence it is not easy to tell the exact position of an electron.
Hence, four quantum numbers are used to locate the position of electrons around the nucleus.
i) Principle Quantum Number:
This number explains the main energy level which tend to increase in energy as the distance of electrons from nucleus are increased. Principle Quantum Numbers are integer number ranging from one to infinity. Hence, increase in this quantum number results in increase of the size of orbital.
ii) Azimuthal Quantum Number:
This Quantum Number explains the direction of particular orbital in 3-dimensional space. Also it is responsible for the shape of an orbital.
iii) Magnetic Quantum Number:
This Quantum Number also tells the direction of orbital in 3D space with respect to x, y and z axis.
iv) Spin Quantum Number:
This Quantum Number tells about the spin direction of an electron about its axis which may be clockwise or anticlockwise.
The normal boiling point of fingernail polish remover is 56℃ the vapor pressure of fingernail polish remover at the salon 0.027 atmospheric pressure
<h3>What is atmospheric pressure?</h3>
The pressure exerted by the vapors due to the atmosphere as it is surrounded by it only is known as vapor pressure and its unit is atm.
As air have small molecules which forms multiple layers and create pressure.
vapor pressure = {1/T1 - 1/T2}
T1 = 56 c
T2 = 22 c
substituting the values,
vapor pressure = [ 1/ 56 - 1 / 22 ]
= 0.027 atm.
Therefore, the vapor pressure of nail paint remover is 0.027 atm
Learn more about vapor pressure , here:
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The Answer is D
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<span>Liquid state must be the state of the substance in order to be analyzed by using uv-vis spectroscopy although gas phase measurements can be made using long path gas-tight cells. Absorption measures transitions from the ground state to the excited state.</span>
The answer is 11
11 O2 is 22 oxygen atoms
8 H2o means there is 8 atoms of oxygen needed here
7 CO2 means you need 14 oxygen atoms here
14 Pkus 8 is 22