What is the relationship between a mole and Avogadro number
2 answers:
Answer : The relationship between a mole and the Avogadro number is, 1 mole of a substance contains number of atoms, molecules or ions.
Explanation :
Mole : It is defined as the amount of substance that contain the same number of units as there are atoms present in exactly 12 grams of carbon-12.
Avogadro's number : It is defined as the number of atoms molecules present in a mole of any substance.
The Avogadro's number is represented as,
The relationship between a mole and Avogadro number are,
As, 1 mole of a substance contains number of atoms, molecules or ions.
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<h2>Question:- </h2>
A solution has a pH of 5.4, the determination of [H+].
<h2>Given :- </h2>- pH:- 5.4
- pH = - log[H+]
Take negative to other side
-pH = log H+
multiple Antilog on both side
(Antilog and log cancel each other )
Antilog (-pH) = [ H+ ]
New Formula :- Antilog (-pH) = [+H]
Now put the values of pH in new formula
Antilog (-5.4) = [+H]
we can write -5.4 as (-6+0.6) just to solve Antilog
Antilog ( -6+0.6 ) = [+H]
Antilog (-6) × Antilog (0.6) = [+H]
put the value in equation