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Question

Please help me with all the Formulas that will be used in Mole Concept that we also used in class 9 but not to a great extent. Please help me with all of the formulas of Mole Concept! ASAP😇😇

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Solution

The following formulas are used in the calculations :

○ Number of moles (n) = Given number of particles (N) / Avogadro number (NA)

○ Number of atoms (n) = Given mass (m) / (Molar mass (M) x Avogadro number (NA) )

○ Number of molecules (n) = Given mass (m) / (Molar mass (M) x Avogadro number (NA) )

○ Number of particles (n) = Number of moles of particles (n) x Avogadro number (NA)

Note: We can also use formula

No.ofmoles=GivenmassMolecularmass=No.ofparticles(or)No.ofatoms(or)No.ofmoleculesAvagadronumber

These formulas will help you to do problems in mole concept.


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