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Telangana Open School (TOSS) Class 12 Chemistry — Formula Sheet

Telangana Open School (TOSS) Class 12 Chemistry formula sheet, chapter by chapter — 117 formulas across 18 chapters. Follows the TOSS syllabus.

How to Use the Formula Sheet

  1. Write, don't just read — writing each formula out helps it stick.
  2. Understand the derivation — you can rebuild a formula you half-remember.
  3. Group related formulas — link the ones that build on each other.
  4. Test yourself — cover the sheet and write the formulas from memory.

Chapter-Wise Formulas — 18 Chapters

1

Mole Concept

7 entries
Number of moles (n) = Mass (m) / Molar mass (M)
Number of particles = n × Nₐ
Molar volume of gas at STP = 22.7 L/mol
1 amu = 1/12 × mass of one C-12 atom
The number of moles (n) is calculated as mass (m) divided by molar mass (M): n = m/M.
The full Mole Concept formula sheet
4

Chemical Arithmetics

8 entries
Molecular Formula = (Empirical Formula) × n
% mass of element = (mass of element in 1 mol compound / molar mass of compound) × 100
Step 1: % → Mass in 100g → Moles → Divide by smallest → Multiply to whole numbers
Mole Ratio = Coefficients from Balanced Equation
Mass = Moles × Molar Mass
The full Chemical Arithmetics formula sheet
7

Atomic Structure

10 entries
c = νλ
E = hν
E = hc/λ
ν̄ = R_H (1/n₁² - 1/n₂²)
E_n = -13.6/n² eV
The full Atomic Structure formula sheet

15 more chapters below

Formula sheets for all 18 chapters with formulas.

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Frequently Asked Questions

Where can I find Telangana Open School (TOSS) Class 12 Chemistry Formula Sheet?

This page has formula sheet for 18 chapters of Telangana Open School (TOSS) Class 12 Chemistry for the board exams 2027. Each chapter links to its own page with the full set.

Go through the syllabus first, then work chapter by chapter: learn the ideas, practise questions, and revise with notes and flashcards. Leave time at the end to revise every chapter once more under timed conditions.

Learn the formulas you use most first, and understand what each symbol means so you can apply them. Knowing where a formula comes from helps you rebuild it if you forget it in the exam.

Browse Formula Sheet by Chapter

18 chapters

1

Mole Concept

4

Chemical Arithmetics

7

Atomic Structure

10

Periodic Table and Atomic Properties

11

p-block Elements and their Compounds - I

16

The Gaseous state

17

d-block and f-block Elements

20

Coordination Compounds

22

The Solid State

25

Solutions

26

Hydrocarbons

30

Building Materials

31

Chemical Thermodynamics

33

Spontaneity of Chemical reactions

37

Ionic Equilibrium

39

Electro Chemistry

40

Chemical Kinetics

41

Adsorption and Catalysis

More Chemistry Resources

Telangana Open School (TOSS) Class 12

Practice Quiz

Test yourself with quick quizzes

Important Questions

Exam-style questions with answers

Revision Notes

Key concepts and quick revision points

Chapter Summary

Understand each chapter at a glance

Concept Maps

Diagrams showing how topics connect

Study Plan

Week-by-week preparation schedule

Flashcards

Quick-fire cards for active recall practice

Syllabus

Chapter list and the topics in each

Other Telangana Open School (TOSS) Class 12 Subjects

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