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Unformatted text preview: 1 ·1'-~o.OO rnL / a.O mmotes mol -' >(= (O.JOOM)(ao.ooml.) Aceordlrig -to Table::L, -the unl(nown (lel/:! 4. X mg of an unknown acid was titrated with 0.110 M sodium hydroxide. Calculate X by is tAC«Olc Acid} subtracting the last two digits of you student ID in mg from 400 mg. The equivalence point is a~ 25.00 mL. What is the molar mass of the unknown acid? Heela A~ili (II)*'O~15lO'1g5} Name CHE I';4-4E Section 1. Adipic acid has a pK a of 4.40. What is its K a ? Ka ~ 10-r\<o.-== 10 -4· to :=:: ~-3--=. 9;;;"-9-X-W---S-::;:-I<--'o.\ ID~ I0'1ISC,1SS l~ two diqits of Siu.dent ,() t4olo.rr~ == #&r moles 400ma:-BS mq;= 315 mg. .~ uters) J ••• (volu.rne (as.Ooml) (O.IIOM)= ~.'1S rnmoles 3i 5mq.-::: 114. S 9/ mol ~. '15 mmoLes is -the molar mass • o~ the u.nknoW n aCLd...
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This note was uploaded on 09/21/2011 for the course CHE 131 taught by Professor Kerber during the Fall '08 term at SUNY Stony Brook.
- Fall '08