The concentration of the nitrate ion in a cc solution can be determined in a three-step process:
1.the zinc metal recycles nitrate ions into ammonia in a basic aqueous solution.
2.the ammonia is transferred to a solution containing a known but excess amount of hcl(aq).
3.the hcl(aq) that did not react with a solution of naoh(aq) standard solution
a. write a balanced chemical equation for the three reactions.
b. for sampling in volume of 25.00 ml, extracted from rustic well water contaminated with no3- (aq); added base and excess zinc metal. the ammonia gas which was emitted in the reaction was transferred into 50.00 ml of aqueous solution of hcl(aq) 2.5*10^-3m . the unreacted hcl(aq) solution was titrated to the stoichiometric point with 28.22 ml of 1.5*10^-3m naoh(aq)
what is the molecular concentration of the nitrate ion in the well water?