Four separate beakers each contain 100.0 mL of Fe(NO₃)₃(aq) at the concentrations…

CHEMISTRY · Single correct · AP · Chemistry · Equilibrium · Equilibrium

Problem

Four separate beakers each contain 100.0 mL of Fe(NO₃)₃(aq) at the concentrations listed below. Solid NaOH(aq) is added dropwise to each beaker while the mixtures are stirred and kept at 25 °C. In which beaker will a precipitate of Fe(OH)₃(s) appear at the lowest pH? (a) 0.00010 M Fe3+0.00010\,\text{M}\,\mathrm{Fe}^{3+} (b) 0.010 M Fe3+0.010\,\text{M}\,\mathrm{Fe}^{3+} (c) 0.10 M Fe3+0.10\,\text{M}\,\mathrm{Fe}^{3+} (d) 0.0010 M Fe3+0.0010\,\text{M}\,\mathrm{Fe}^{3+}

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