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Freshly prepared aluminium and magnesium...

Freshly prepared aluminium and magnesium hydroxides are stirred vigorously in a buffer solution containing `0.25M` of ammonium chloride and `0.05M` of ammonium hydroxide. Calculate the concentration of aluminium and magesium ions in solution `(K_(b) NH_(4)OH = 1.8 xx 10^(-5), K_(sp) Mg(OH)_(2) = 6 xx 10^(-10), K_(sp) A1(OH)_(3) = 6 xx 10^(-32)`.

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Freshly precipitated aluminium and magnesium hydroxides are stirred vigorously in a buffer solution containing 0.25 mol L^(-1) of NH_4Cl and 0.05(M) of ammonium hydroxide. Calculate the concentration of aluminium and magnesium ions in solution. K_b(NH_4OH)=1.8xx10^(-5),K_(sp)[Al(OH)_3]=6xx10^(-32) K_(sp)[Mg(OH)_2)]=8.9xx10^(-12)

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