Question

HCI + NaOH → 0.1 M of HCI 0.1056 M of NaOH Trial ΔΝαΟΗ NaOH begin 5.6 ml NaOH end 27.8ml 9.3 ml 31.4 ml Observation The sol was bright, over titrated The sol was lighter pink than the first one The sol is lighter pink 19.4 ml 41.8 ml Your report should contain a table that lists the volumes of standardized NaOH solution required to titrate 25.00 ml of the HCl solution of unknown concentration. Provide one complete series of sample calculations to show how you determined the concentration of the HCl unknown. Calculate the average concentration of the HCl solution.

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Answer 1

Salve while titrating reaction occurs at equivabince naon with which Point her as acid-base Indicated by Indicator concentration Equivalence point is a point at which of peid eeuels concentration of Base Hal on Naon = 0.1056. volume of her Given. asooml. hat just equivalence point - where indicatar gives/ Pink colour in solution/ I Lx Mucex Gece = L M Naonx Inaon. Unao - Naon end- Noor begin. sor - Triat Is het concentration of unknown Halbex. o sa (27.8-56). X0-1056 LV. 0.093m Triala. more good Indicator nas = (31-4 -9.3 xoloso 20.0933 M

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