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Glycolic acid,
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ORGANIC CHEMISTRY-STUDY GDE./SOL.MAN.
- Without writing an equation, specify the molecular ratio in which each of the following acidbase pairs will react. a. HCl and KOH b. H2CO3 and KOH c. HCl and Ca(OH)2 d. H2CO3 and Ca(OH)2arrow_forwardFind the value of Kb for the conjugate base of the following organic acids. (a) picric acid used in the manufacture of explosives; Ka = 0.16 (b) trichloroacetic acid used in the treatment of warts; Ka = 0.20arrow_forwardWhich of the following common food additives gives a basic solution when dissolved in water? (a) NaNO3 (used as a meat preservative) (b) NaC6H5CO2(Sodium benzoate, used as a soft drink preservative) (c) NaH2PO4(used as a emulsifier in the manufacture of pasteurized cheese)arrow_forward
- Place the species in each of the following groups in order of increasing acid strength. a. H2O, H2S, H2Se (bond energies: HO, 467 kJ/mol; HS, 363 kJ/mol; HSe, 276 kJ/mol) b. CH3CO2H, FCH2CO2H, F2CHCO2H, F3CCO2H c. NH4+, HONH3+ d. NH4+, PH4+ (bond energies: NH, 391 kJ/mol; PH, 322 kJ/mol) Give reasons for the orders you chose.arrow_forwardWhich acid has the strongest conjugate base? (a) HNO2 (b) C6H5CO2H (c) HCN (d) HClarrow_forwardGlycolic acid, HOCH2CO2H, is the simplest member of a group of compounds called α-hydroxy acids, ingredients in skin care products that have an OH group on the carbon adjacent to a CO2H group. Would you expect HOCH2CO2H to be a stronger or weaker acid than acetic acid, CH3CO2H?arrow_forward
- Picric acid, used in the manufacture of explosives, has a K₂ = 0.160. What is the K₁ of its conjugate base? O 0.796 1.60 x 1013 O 6.25 x 10¹4 01.00 x 10arrow_forwardFill in the missing chemical formulae in the tables below. acid H₂PO4 + H₂0¹ H₂O conjugate base 0 0 0 base 2- co² HSO4 ΝΗ, conjugate acid X Śarrow_forwardIdentify the acid and the base in each Lewis acid-base reaction. H2O + SO3 → H2SO4arrow_forward
- Which of the following is a weak acid? O H2SO4 O NH3 О Ba(ОН)2 HI Ο ΗΝΟarrow_forwardChemistry The ascending order (from least to greatest) of acidity of the following compounds is: OH 2 OH Br 3 OH OH fla OHarrow_forwardAmmonia, NH3, is also a weak base with Kp = 1.8x105. Which of the following is the best explanation for why dimethylamine is a stronger base than ammonia? The question as stated is incorrect, ammonia is a stronger base than dimethylamine because of the bigger lone pair of electrons on the N of ammonia compared to the N on dimethylamine. The hydrogens on ammonia are more electronegative than the methyl groups on dimethylamine, making ammonia a weaker base than dimethylamine. The two methyl groups on dimethylamine are more electronegative than the hydrogens on ammonia and make dimethylamine a stronger base. The two methyl groups on dimethylamine that replace hydrogens on ammonia are electron rich and donate electron density to the N making dimethylamine a stronger base.arrow_forward
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