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A 36.80-mL sample of 0.250 M HNO3 solution is titrated with 0.221 M KOH. Calculate the pH of the solution a before the additiК, - 1.8 х10-5 К 7.4 х 10-5 К, 5.0 х 10-1о К, 3.0 х 10-1о К, - 4.0 x10-3 К, 1.0 х 10-5 К, - 1.0 x10-4 К, - 6.0 х 10-1о Ка 5.9

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CHN H 25M kOH Mola o-221 M p-992H-1og Ce 25)--60206 v olume 0.03 2 3-2 ml 5 NMoasity o25M koH Molaait .221 M volume 3 Pml 0-0koH:Mo atrtyo22IM koH Molasi td O221M volume 26.74 mla0.02674 volume 3g. 63 ml O3 863 no t moley o 22) 02679 o-00520954 no moKOH Molasitar volume Le2- 23 ml0042.2.3 no otmeles 0.221 x0 0 4223 2000933 283 KOH ENS 0 O00933 283 .009 2 -0-0072 -O.002 2 O

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