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Freshly precipitated aluminium and magnesium hydroxides are stirred vigorously in a buffer solution containing 0.05 mol L−1 of NH4OH and 0.25 mol L−1 of NH4Cl. Calculate the concentration of magnesium ions in solution. Ksp Al(OH)3=6×10−32 Kb NH4OH=1.8×10−5 Ksp Mg(OH)2=6×10−10 |
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Answer» Freshly precipitated aluminium and magnesium hydroxides are stirred vigorously in a buffer solution containing 0.05 mol L−1 of NH4OH and 0.25 mol L−1 of NH4Cl. Calculate the concentration of magnesium ions in solution. Ksp Al(OH)3=6×10−32 Kb NH4OH=1.8×10−5 Ksp Mg(OH)2=6×10−10 |
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