Q: Calculate the mass of 1 molecule of water (Atomic masses: H=1, O=16). Solution: Molecular mass of H2O = (2×1) + 16 = 18 u. Mass of 1 molecule = Molar mass / Avogadro’s number = 18 g / 6.022 × 10²³ = 2.989 × 10⁻²³ g Final Verdict If you aim for 90%+ in ICSE Chemistry, the Viraf J. Dalal book + its solutions are non-negotiable. Keep the solutions for doubt-clearing, not for homework copying.
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If you are an ICSE Class 10 student, you have likely heard the name Viraf J. Dalal . His textbook, "Simplified ICSE Chemistry," is the bible for ICSE board exam preparation. However, let’s be honest—solving the numerical problems, balancing equations, and understanding organic chemistry can be tough.
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The Ultimate Guide to Viraf J. Dalal ICSE Chemistry Class 10 Solutions