Question

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EXP #9: POST-LAB 1. Draw the shape ofa titration curve of diprotic base as a strong acid is added to it. 2. If you were to plot the electrical conductivity of HCl as NAOH is added, what would a plot of electrical conductivity vs. volume NaOH look like? (Hint: Write the net ionic equation): 3. Research and explain the difference between the equivalence point of a titration and its endpoint.

Answer 1

o Titaton OF dipotc base ay follaus Curre streng acid addded is as 14 10 tao eqwivalence Points observest Temre 4 2 lo IS 55 া or qdd वववन्व,

(2 +Naon Nacl t 1) Net Ioni equation- H20 + H t + 8H H20 Conductomemc tihaion of shong acid Hc) vs Shong base (haon Curve Conductance ml Naan added Belore Naon is added the conductance is high due Prejence H ns Whem base is added, th due to replacement hydrogen in conductange till the equivalence point So Contain conductance fails Jon by o n The decrease coninues AFler enuivalence paint te Gnly Nac conductance increases dye to lage canductivily fon

DATE DIFference between equivalence point titeatfon is follous paint The point end Of which exactly equvalont at quantities (sram equivalemts or migram of acid base added to equivalents) ano ther in tira tion is called ea uivatemce ane One HbatHon point of the indicatox changes a Htoation u calred endl point The its colouy during Hhation at ohich point