Chemistry Formulas List

Chemistry is a subject that requires a lot of memorization of formulas and equations. These formulas play a crucial role in understanding the concepts of chemistry. Some of the important chemistry formulas are:

1. Mole concept:
- Avogadro’s number (NA) = 6.022 x 10²³ mol⁻¹
- Mole (n) = Mass (m) / Molar mass (M)
- Molar mass (M) = Mass (m) / Moles (n)
- Mass (m) = Moles (n) x Molar mass (M)

2. Chemical bonding:
- Lewis dot structure
- Valence shell electron pair repulsion (VSEPR) theory
- Hybridization
- Molecular orbital theory

3. Stoichiometry:
- Law of conservation of mass
- Law of definite proportions
- Law of multiple proportions
- Limiting reactant
- Percent yield

4. Thermodynamics:
- First law of thermodynamics
- Enthalpy (H)
- Entropy (S)
- Gibbs free energy (G)

5. Acids and bases:
- Arrhenius theory
- Bronsted-Lowry theory
- Lewis theory
- pH = -log [H+]

6. Electrochemistry:
- Faraday’s laws of electrolysis
- Electrolytic cell
- Galvanic cell
- Nernst equation

7. Chemical kinetics:
- Rate of reaction
- Activation energy
- Rate law
- Order of reaction

8. Organic chemistry:
- Isomerism
- Functional groups
- Organic reactions
- Nomenclature

Conclusion:
Chemistry formulas are the foundation of understanding the subject. It is important to memorize and understand these formulas to excel in the subject. Students should practice using these formulas in problem-solving to gain a deeper understanding of the concepts.