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Formula Sheet

Water

ICSE · Class 9 · Chemistry

All formulas from Water in ICSE Class 9 Chemistry. Key equations, constants, and identities for board exam preparation.

43 questions36 flashcards5 concepts

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A diagram illustrating the arrangement and movement of particles in solid, liquid, and gaseous states of matter.
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14 Formulas · 4 Sections

Formulas

Core facts about water

H2O

Molecular mass of water = 18 amu

Concentration of solution = (Mass of solute / Mass of solution) × 100

Volume percent = (Volume of solute / (Volume of solute + Volume of solvent)) × 100

Solubility = (M2 - M) / [(M1 - M) - (M2 - M)] × 100

Solutions and solubility

Concentration of solution = (Mass of solute / Mass of solution) × 100

Volume percent = (Volume of solute / (Volume of solute + Volume of solvent)) × 100

Solubility = (M2 - M) / [(M1 - M) - (M2 - M)] × 100

Hydrated, anhydrous, and crystal properties

% of water of crystallization = (a - b)/a × 100

Hard and soft water

Ca(HCO3)2 --Boil--> CaCO3↓ + H2O + CO2↑

Mg(HCO3)2 --Boil--> MgCO3↓ + H2O + CO2↑

Ca(HCO3)2 + Ca(OH)2 → 2CaCO3↓ + 2H2O

Ca(HCO3)2 + Na2CO3 → CaCO3↓ + 2NaHCO3

CaSO4 + Na2CO3 → CaCO3↓ + Na2SO4

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Frequently Asked Questions

What are the important topics in Water for ICSE Class 9 Chemistry?
Key topics in Water include Correct Classification of Water Absorption and Loss Phenomena, Chapter Overview: Water — Key Concepts, Chapter Water — Complete Concept Map. These are the concepts ICSE Class 9 examiners draw on most — study them first, then practise related questions.
How to score full marks in Water — ICSE Class 9 Chemistry?
Understand the core concepts first, then work through the 43 practice questions available for this chapter. Revise formulas and 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 Water

All 9 chapters — ICSE Class 9 Chemistry Formula Sheet

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