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Formula Sheet

Ionic Equilibrium — Formula Sheet

Telangana Open School (TOSS) · Class 12 · Chemistry

15 formulas from Ionic Equilibrium (Telangana Open School (TOSS) Class 12 Chemistry) on one page, grouped by topic.

53 questions35 flashcards15 formulas & key relations5 concepts

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15 Entries · 6 Sections

Formulas and Key Relations

Ionization Constants & pH

K_a = [H₃O⁺][A⁻] / [HA]

K_b = [BH⁺][OH⁻] / [B]

pH = -log[H₃O⁺]

pOH = -log[OH⁻]

pH + pOH = 14

Buffer Solutions

pH = pK_a + log([Salt]/[Acid])

pOH = pK_b + log([Salt]/[Base])

Solubility Equilibrium

K_sp = [A⁺][B⁻]

K_sp = 4s³

K_sp = 108s⁵

Self-Ionization of Water and pH Scale

Water undergoes auto-ionization

H₂O + H₂O ⇌ H₃O⁺ + OH⁻.

Ionic product of water, Kw = [H₃O⁺][OH⁻] = 1.0 × 10⁻¹⁴ at 298 K.

pH = -log[H₃O⁺], pOH = -log[OH⁻], and pH + pOH = 14.

For weak acids

α = √(Kₐ/c)

Key relations

pH is defined as the negative logarithm of hydronium ion concentration: pH = -log[H₃O⁺].

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Frequently Asked Questions

What are the important topics in Ionic Equilibrium for Telangana Open School (TOSS) Class 12 Chemistry?
Key topics in Ionic Equilibrium include Concepts of Acids and Bases, Strength of Acids and Bases, Self-Ionization of Water and pH Scale, Common Ion Effect and Buffer Solutions. Study these first, then practise questions on each for the Telangana Open School (TOSS) Class 12 board exam.
How many formulas are in Ionic Equilibrium?
This sheet lists 15 formulas from Ionic Equilibrium, grouped by topic. Learn what each symbol stands for so you can apply the formula, not just recall it.
How should I revise Ionic Equilibrium for the Telangana Open School (TOSS) Class 12 board exam?
Learn the core ideas first, then work through the 53 practice questions on Ionic Equilibrium. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

More resources for Ionic Equilibrium

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

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