EXPERIMENT 8: POST-LABORATORY Reactions in Aqueous Solution Double Displacement

Question

EXPERIMENT 8: POST-LABORATORY Reactions in Aqueous Solution Double Displacement Reactions Post-Laboratory Questions DUE AFTER COMPLETING THE LAB Using the solubility rules, predict the solubility of each of the following compounds in water. (S n soluble, 1-insoluble d) Pb(NO,), b) Al(OH), Predict whether a precipitation reaction will occur when aqueous solutions of ammonium sulfate and calcium acetate are mixed. Write the net ionic equation. 2. 3. Predict whether a reaction occurs when each of the following solutions are mixed. If a reaction does occur, write balanced molecular, ionic, and net ionic equations, and identify the spectator ions Potassium chromate and silver nitrate 4 Complete the following reactions and write net ionic equations for each if any a) Pb(NOJag)+ FeSO), (aq) b) Ni(OH), (s)+(NH.)SO(aq) 5. Complete the following reactions and write spectators for each if any. a) cobalt(lI) chloride (aq) and cesium phosphate (aq) b) sodium phosphate (aq) and calcium chloride (aq) CHEM 1411 Esperiment s | Resctions in Aqueous Solatio

Explanation / Answer

Ans 1 :

a) CaCO3 : I

CaCO3 is insoluble in water . It precipitates out as white precipitate when CO2 is passed into lime water.

b) Al(OH)3 : I

Aluminium hydroxide has has high lattice energy and has extended bonding between Al and O atoms. The reason it it is insoluble in water.

c) HgCl2 : S

It is reasonably soluble in water and yields hydrogen gas and heat in the reaction.

d) Pb(NO3)2 : S

Lead nitrate is the salt which is soluble in water like all other lead salts.

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