At 25 °C, 0.0020 mol of HCl(aq) is mixed with 0.0015 mol of NaOH(aq) and diluted to a…

CHEMISTRY · Single correct · AP · Chemistry · Acids and Bases · Acids and Bases

Problem

At 25 °C, 0.0020 mol of HCl(aq) is mixed with 0.0015 mol of NaOH(aq) and diluted to a final volume of 1.00 L. Assuming complete dissociation and additive volumes, what is the hydroxide-ion concentration in the final solution? (a) 5.0×10−8 M5.0\times10^{-8}\,\text{M} (b) 2.0×10−11 M2.0\times10^{-11}\,\text{M} (c) 1.0×10−7 M1.0\times10^{-7}\,\text{M} (d) 2.0×10−10 M2.0\times10^{-10}\,\text{M}

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