A 1.000L volumetric flask was filled with distilled water at 25∘C. Solid silver(I) chloride was added with continuous stirring until excess undissolved solid remained at the bottom. After filtration to remove the excess, the mass of AgCl that had dissolved in the saturated solution was found to be 1.26×10−2g.
For silver(I) chloride, the formula mass is 143.32g mol−1.
(a) Calculate the molar solubility of AgCl at 25∘C, reporting your answer with an appropriate number of significant figures.
(b) Write the balanced dissolution equation for AgCl(s) in water and, based on that equation, state the general equilibrium-constant expression associated with the process.
(c) Using your result from part (a) and the expression from part (b), determine the numerical value of the solubility-product constant at 25∘C.