There are
4.517
⋅
10
23
atoms of Zn in 0.750 mols of Zn.
<h3>
<u>ANSWER</u> </h3>
4. O²-
<h3>
<u>EXPLANATION</u> </h3>
O²- has 16 electrons while Ne has 18 electrons. O²- is a molecule that has one electron added to each atom, meaning that there are two extra electrons which makes O²- the same electron configuration as of Ne atom.
Answer:
<h2>8.13 mL</h2>
Explanation:
The required volume can be found by using the formula for Boyle's law

where
P1 is the initial pressure
P2 is the final pressure
V1 is the initial volume
V2 is the final volume
From the question we have

We have the final answer as
<h3>8.13 mL</h3>
Hope this helps you
Answer:
The picture is the correct answers
Explanation:
Answer:
C₅H₅N is weakest base due to it's lowest Kb values.
Explanation:
Basic strength of an organic base is directly proportional with Kb(base dissociation constant) value.
Since Pyridine (C₅H₅N) is weakest base due to its lowest Kb value.
The reason of low basicity are as follows
1) lone pair containing orbital of nitrogen is sp² hybridised which is more electronegative as compare to sp³ orbital.
2) The conjuagte acid of pyridine is least stable as compare to other conjugate acids of corresponding bases.