Equal volumes (50.0 mL each) of 0.20 M aqueous sodium carbonate and 0.20 M aqueous…
CHEMISTRY · Multi-part · AP · Chemistry · Chemical Reactions · Chemical Reactions
Problem
Equal volumes (50.0 mL each) of 0.20 M aqueous sodium carbonate and 0.20 M aqueous calcium nitrate are mixed in a beaker at 25 °C. A solid forms immediately, and the mixture is stirred until equilibrium is reached. Assume volumes are additive and that only one insoluble product forms.
(a) Write the balanced molecular equation, the complete ionic equation, and the net ionic equation for the reaction that occurs.
(b) Calculate the mass (in grams) of solid product formed after the reaction goes to completion.
(c) After the reaction is complete, a small, transparent region of the mixture is magnified to create a particle-level "snapshot." Draw a diagram of that snapshot that includes:
• All aqueous ions that remain in solution, shown separately and in correct relative amounts.
• A representation of the solid product, drawn as an aggregated cluster rather than individual ions.
Label each particle type clearly.
(d) Justify why certain ions appear only in the aqueous phase of your diagram, whereas others are incorporated into the solid.