Chem-15-unknown-acids-table - 2 COOH 134.1 3.5 5.1 Malonic,...

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Chem 15, Fall 2011 T ABLE of P OSSIBLE U NKNOWN W EAK A CIDS FOR L AB 2 Name Mol.Wt. p K a ’s Adipic, HOOC.(CH 2 ) 4 .COOH 146.1 4.4 5.4 Citric, HOOC·CH 2 ·C(OH).(COOH) CH 2 ·COOH.H 2 O, monohydrate 210.1 3.14 4.77 6.39 Ethylenediaminetetraacetic acid,(NaOOC·CH 2 ) 2 N·(CH 2 ) 2 ·N(CH 2 CO OH) 2 ·2H 2 O, disodium salt dihydrate 372.2 6.2 10.0 Fumaric 116.1 3.0 4.5 Histidine 155.2 1.8 6.0 9.1 Hydrazine sulfate, N 2 H 4 ·H 2 SO 4 130.1 0.3 7.9 p -Hydroxybenzoic, HO·C 6 H 4 ·COOH 138.1 4.6 9.5 Iminodiacetic, HN(CH 2 ·COOH) 2 133.1 3.0 9.9 Itaconic, HOOC·CH 2 ·(C=CH 2 )·COOH 130.1 3.9 5.5 Maleic, HOOC·CH=CH·COOH ( cis ) 116.1 1.9 6.2 Malic, HOOC·CH(OH) ·CH
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Unformatted text preview: 2 COOH 134.1 3.5 5.1 Malonic, HOOCCH 2 COOH 104.1 2.8 5.7 Oxalic, HOOCCOOH2H 2 O 126.1 1.2 4.2 Phosphoric, H 3 PO 4 98.0 2.2 7.2 NaH 2 PO 4 H 2 O 138.0 Phthalic, C 6 H 4 (COOH) 2 166.1 3.1 5.4 HOOCC 6 H 4 COOK 204.2 5.4 Succinic, HOOC.(CH 2 ) 2 .COOH 118.1 4.2 5.6 Tartaric, HOOC(CHOH) 2 COOH 150.1 2.7 4.0 Note : Some of these acids are also included in Harris' Appendix G, and you may find it useful (or at least interesting) to compare pKa values given in the two tables (e.g., Harris includes pKa values for both =0 and =0.10M)....
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