How to find number of atom in different mole.

Mole is a fundamental quantity which defines the amount of substance. Mole is obtained by dividing given mass of substance to its molecular mass.
                Mole = Given mass of substance / Molecular mass of substance
Once you get the moles of substance , next you will go to calculate the numbers of atom by using Avagardo’s  rule-
According to this rule - Number of atoms in 1 mole of substance is equal to = 6.023*10to the power23
So 2 mole substance contain - 2 * 6.023*10 to the power 23

Mesophyll Tissue

Mesophyll is situated below the epidermis. It help in photosynthesis . Mesophyll is composed of two type of cell-
1- Palisade Parenchyma
In this type of cell chloroplast content is more , so it play major role in photosynthesis.
Generally it forms a single well organised layer just below the epidermis.
2- Spongy parenchyma
There are large spaces left between the cells of spongy parenchyma. These large spaces allow these
layers to help Co2 move around the leaf. The Spongy mesophyll also allow plant to bend and move in wind, which itself move gases around the leaf cell.
Spongy parenchyma also help in photosynthesis.
Mesophyll is a type of ground tissue. It consist of following part-