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- Which of the following is a hydroxide ion? H3O + H + H2O - OH -Which of the following has the compounds shown in the correct order of decreasing acidity (i.e., more acidic > less acidic)? OH 2>1>3 3 > 21 1>3>2 1 2 3 ΝΗΣ 2 3At pH=2.2, which of the following is true COOH Ç00 COO ÇO0 H3N-CH H,N-CH H,N-CH H2N-CH CH2 CH2 CH CH2 pK1 CH2 pKr CH2 pK, CH2 CH COOH СООН CO COO 1. II IV O50 % of carboxylic acid group in the side chain is ionized O Most of the molecules are in the form II C None 50% of carboxylic acid group attached to alpha carbon is ionized 50% of amino group is ionized
- GRA H-C-OH C=0 HO-C-H H-C-OH H-C-OH H-C-OH CH₂OH H HH HO Select the correct molecule for each of the following questions. You may use each OH H H OH -CH₂ 0-P-0- 0 40 40 EEEEEEEEEE CCCCCCCCCCE AXCCCCCES voor m dAt pH 10, [OH-] is— 10 M 5 M 10-10 M 10-4 M 0.0000001 Mblank 1 hydorgen or disulfide or covalent or ionic blank 2 heme nitrogen or O2 or distal histidine or promixmla histidine or heme iron blank 3 hydorgen or disulfide or covalent or ionic blank 4 heme nitrogen or O2 or distal histidine or promixmla histidine or heme iron