Final answer:
To prepare zinc sulfate crystals from zinc carbonate, react it with sulfuric acid, filter the solution, then evaporate water to allow the zinc sulfate to crystallize, and collect the crystals by filtration.
Step-by-step explanation:
To prepare crystals of zinc sulfate starting with zinc carbonate (ZnCO3), you'll need to perform a series of chemical reactions. First, zinc carbonate should be reacted with sulfuric acid (H2SO4) to form zinc sulfate and carbon dioxide:
ZnCO3(s) + H2SO4(aq) → ZnSO4(aq) + H2O(l) + CO2(g).
After the reaction, you can filter out any unreacted solids. Then, evaporate some of the water from the filtrate to increase the concentration of zinc sulfate until it reaches saturation. At this point, allow the solution to cool, which will result in the crystallization of zinc sulfate. Finally, collect the zinc sulfate crystals by filtration and let them dry.