Formula reaction with lead nitrate

The equations we ve been writing up to this point have all been molecular equations. That is, all the substances involved in reactions have been written using their full formulas as if they were molecules. In Section 4.1, for example, we wrote the precipitation reaction of lead(II) nitrate with potassium iodide to yield solid Pbl2 using only the parenthetical (aq) to indicate that the reaction takes place in aqueous solution. Nowhere was it indicated that ions are involved ... 

To obtain a final product with the correct molecular formula, the original nitration reaction must lead not to a mononitro but to a dinitro derivative. This is reasonable in view of the fact that this reaction is carried out at elevated temperature (120°C). 

Lead(II) nitrate reacts with cesium sulfate in an aqueous precipitation reaction. What are the formulas of lead(II) nitrate and cesium sulfate Write the molecular equation and net ionic equation for the reaction. What are the names of the products Give the molecular equation for another reaction that produces the same precipitate. 

Suppose the lead(ii) chloride is prepared from radioactive lead-212. The lead(ii) chloride has been labelled, and we can show the labelled radioactive lead ion in a formula by using a star PbCl2. Consider the situation when PbCl2 is added to a solution of Pb(N03)2, left for a number hours to reach equilibrium, and then the solution separated from the solid. The solution can be crystallized, and the lead(ii) nitrate collected. The crystals are radioactive because some of the nitrate is in the form of Pb(N03)2- This result is explained by realizing that an insoluble substance is not 100% insoluble, but slightly or partially soluble. Some of the labelled lead(ii) ions must have left the lattice of the PbCl2 crystals and dissolved in the water. There they became mixed with the ordinary isotopes of lead. When the solution was separated, some of the radioactive lead was left in the solution, and some of the non-radioactive lead found its way into the lead(ii) chloride. This is known as an exchange reaction. 

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