Define Mole concept
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Answers
Explanation:
Mole
The quantity of a substance is expressed in terms of mole. One mole is also
defined as the amount of substance which contains 6.023 x 10 units
of particle.
1 mole 6.023 x 102 units (Avogadro's Number NA)
For examples; one mole of oxygen atoms represents 6.023 x 10 atoms of
oxygen and 5 moles of oxygen atoms contain 5x 6.023x10 atoms of oxygen.
Molar mass:
Molecular mass of H20 is 18 amu dy.co
The mass of 1 mole of substance is called molar mass. Atomic mass or
molecular mass in gram is equal to molar mass.
Example:
Atomic mass of Fe is 56 amu
Molar mass of Fe is 56 gram
Molar mass of H2O is 18 gram
Given mass
Number of moles
Molar mass
For example; number of moles in 112 gm of iron will be
Given mass
2 2 moles or 2 x 6.023 x 10 atoms
Molar mass
56
Answer:
The mole is an amount unit similar to familiar units like pair, dozen, gross, etc. It provides a specific measure of the number of atoms or molecules in a bulk. Sample of matter