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Molar mass of AgBr = 188 g/mol, Br = 80 g/mol. Mass of Br = (80/188) × 0.574 = 0.244 g. Percentage = (0.244/0.3) × 100 = 81.33%.
Ref: NCERT Class 11 Chemistry > Chapter 8: Organic Chemistry - Some Basic Principles and Techniques > Topic: Qualitative and Quantitative Analysis - Lassaigne Test and Estimation
For AgBr Ag+ + Br- , Ksp = [Ag+][Br-] = S² = (7.1 × 10⁻⁷)² = 5.04 × 10⁻¹³ .
Ref: NCERT Class 11 Chemistry > Chapter 6: Equilibrium > Topic: Buffer Solutions and Solubility Product and Common Ion Effect
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