The following statement taken from the titration scheme in the analysis of coord
ID: 551415 • Letter: T
Question
The following statement taken from the titration scheme in the analysis of coordinated ammonia is incorrecl. Rewrite the statement so it is correct. # mole HCI(aq) + # m ole NH3(coordinatod)-# mole NaOH(in tho titration) The steps in the analysis for Ni2+ in the complex are listed below but not in the correct order. Arrange them in the correct order by placing a number from 1 to 10 in the blank to the left of the step. divide by the slope divide by mass of weighed sample divide by the atomic weight of nickel determine slope of B-L plot dissolve accurately weighed mass of compound in known volume of acid prepare Ni2+ standard solutions correct for the volume of the acid solution measure absorbance of the acid solution read the procedure determine absorbance of Ni2+ standards (continues)Explanation / Answer
For the first question the anlysis of the coordinated ammonia is done by titrating the standard Hcl (excess) through liberated ammonia. THen the remaining HCl in the solution is back titrated using NaOH.
NaOH+HCl= NaCl+H2O.