A 0.10 M aqueous solution of the weak base B at 25.0 °C has a pH of 8.00.The value of K_b for B is ________. A)1.0 × 10^-15 B)1.0 × 10^-11 C)1.0 × 10^-6 D)1.0 × 10^-12 E)none of the above

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The pH of 8.00 indicates a pOH of 6.00, which corresponds to an OH⁻ concentration of 1.0 × 10⁻⁶ M. Using the formula Kb = [OH⁻]² / [B], we find Kb = (1.0 × 10⁻⁶)² / 0.10 = 1.0 × 10⁻¹¹.

A 010 M Aqueous Solution of the Weak Base B at at 25.0