Chemistry

Chemistry

Problem

An aqueous solution of Ca(OH)2\text{Ca(OH)}_2 shows a pOH of 2.30 at 25\,∘^{\circ}C. What is the molarity of Ca(OH)2\text{Ca(OH)}_2 originally dissolved to make this solution? a) 5.0×10−2 M5.0\times10^{-2}\,\text{M} b) 5.0×10−3 M5.0\times10^{-3}\,\text{M} c) 2.5×10−3 M2.5\times10^{-3}\,\text{M} d) 2.5×10−2 M2.5\times10^{-2}\,\text{M}

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