A laboratory technician prepares 100.0 mL of a mixture that is 0.050 M in CaCl and…
CHEMISTRY · Multi-part · AP · Chemistry · Chemical Reactions · Chemical Reactions
Problem
A laboratory technician prepares 100.0 mL of a mixture that is 0.050 M in CaCl2 and 0.080 M in Na2CO3. The mixture is thoroughly stirred at 25 °C.
(a) Determine whether a solid forms when the two solutions are mixed. Justify your prediction quantitatively or qualitatively, making explicit reference to established solubility guidelines.
(b) If a precipitate is predicted, calculate the maximum theoretical mass (in grams) of solid that can form. Assume the reaction goes to completion and that the volume change upon mixing is negligible.
(c) After the mixture is filtered, the filtrate is evaporated to dryness. Describe the solid residue that would remain and explain your reasoning.