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- (a) Given that Kb for ammonia is 1.8 x10-5 and that forhydroxylamine is 1.1 x 10-8, which is the stronger base?(b) Which is the stronger acid, the ammonium ion or thehydroxylammonium ion? (c) Calculate Ka values for NH4+and H3NOH+.Choose the stronger acid in each of the following pairs:(a) H₂Se or H₃As (b) B(OH)₃ or Al(OH)₃(c) HBrO₂ or HBrOWhich nitrogen atom is the most basic in compound P? H₂N (a) (b) P CN (c) (A) nitrogen a (B) nitrogen b (C) nitrogen c (D) it is impossible to determine the most basic nitrogen atom
- What is Terephthalic acid and how important it is?5. Which of the following equations shows that isoquinoline, C9H;N, behaves as a Bronsted-Lowry base in water? a) CóH;N(aq) + H2O(1) = b) CH;N(aq) + H2O(1) c) C9H;N(aq) + OH¯(aq) = d) CoH;N(aq) + H;O*(aq) e) CoH;NH*(aq) + H2O(!) C9H;NH*(aq) + OH (aq) = C9H&N°(aq) + H;O*(aq) C9HN¯(aq) + H;O(!) = C9H;NH*(aq) + H2O(1) = C9H;N(aq) + H;O*(aq)Of the following carboxylic acids, which is the most acidic? (A) CH3CO₂H (B) HCO₂H (C) CO₂H (D) Cl₂CCO₂H (E) (CH3)3CCO₂H
- Calculate the Ka's for the following acids: (a) Citric acid, pKa = 3.14 (b) Tartaric acid, pKa = 2.98Write equations for the reactions of the following Bronsted bases with water: (a) NH3 (b) TeO3 2- (c) CH3CH2CO2What is the pOH of:(a) a 0.0100 F solution of phtalic acid?(b) a 0.0100 F solution of monopotassium phtalate? (c) a 0.0100 F solution of dipotassium phtalate?if pKa1 = 2.950 and pKa2 = 5.408 for phtalic acid
- (47) (244) (243 Nonmetal Which is the strongest acid of the following? O HIO O HBRO HOAT O HCIO O HCIO2 PreviousHypoglycin A, an amino acid derivative found in unripened lychee, is anacutely toxic compound that produces seizures, coma, and sometimesdeath in undernourished children when ingested on an empty stomach. (a) Draw the neutral, positively charged, and negatively charged forms of hypoglycin A. (b) Which form predominates at pH = 1, 6, and 11? (c) What is the structure of hypoclycin A at its isoelectric point?CH3 KMnO4 Acid ? [A]