The 3-dimensional orientation of a sublevel is known as atomic orbital.
In quantum mechanics, Atomic orbitals are locations around an atom's nucleus where electrons are most likely to be at any particular time(specific orbits). These specific orbits exist in levels and can be broken down into sublevels.
Each sublevel has an orbital and it is oriented differently in 3-dimensional space.
The atomic orbital is a mathematical function that depicts how one or two electrons in an atom behave as seen in waves.
Learn more about atomic orbitals here:
brainly.com/question/1832385
Answer:
a) 
b) 
Explanation:
From the question we are told that:
initial Concentration 
Final Concentration 
Final volume needs 
Generally the equation for Volume is mathematically given by




Therefore
The volume of buffer needed is


I think it's Sodium Sulfide, because Na2S contains one Sodium and two Sulfur. Plus Sulfide<span> is used to describe any of three types of chemical compounds that contain sulfur.</span>
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