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Question

The Ksp of AgBr is 5.0 × 10⁻¹³ . What is [Ag+] in a saturated solution with 0.05 M NaBr ?

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Explanation

For AgBr <=> Ag+ + Br- , Ksp = [Ag+][Br-] = 5.0 × 10⁻¹³ , [Br-] ≈ 0.05 , [Ag+] = (5.0 × 10⁻¹³/0.05) = 1.0 × 10⁻¹¹ M .

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