Mole Concept — Formula Sheet
Telangana Open School (TOSS) · Class 12 · Chemistry
7 formulas from Mole Concept (Telangana Open School (TOSS) Class 12 Chemistry) on one page, grouped by topic. Covers SI Units and Need for Mole.
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Formulas and Key Relations
Mole Concept
Number of moles (n) = Mass (m) / Molar mass (M)
Number of particles = n × Nₐ
Molar volume of gas at STP = 22.7 L/mol
Atomic and Molecular Mass
1 amu = 1/12 × mass of one C-12 atom
Mole, Mass, and Number Relationships
The number of moles (n) is calculated as mass (m) divided by molar mass (M): n = m/M.
Mass can be found using m = n × M.
One mole = 6.022 × 10²³ particles (Avogadro's constant).
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