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Glycolic acid,
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- 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_forwardPicric 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_forward
- Consider the following data on some weak acids and weak bases: acid base Ka name formula name formula HCH3CO2 1.8 × 10 C,H;NH, 4.3 × 10 5 10 acetic acid aniline hydrofluoric acid HF 6.8 x 10 ethylamine C2H;NH2| 6.4 x 10 Use this data to rank the following solutions in order of increasing pH. In other words, select a 'l' next to the solution that will have the lowest pH, a '2' next to the solution that will have the next lowest pH, and so on. solution pH 0.1 М KF choose one 0.1 M C2H5NH3CI choose one 0.1 M NaCl choose one 0.1 M NaCH3CO2 choose onearrow_forwardIdentify the acid and the base in each Lewis acid-base reaction. H2O + SO3 → H2SO4arrow_forwardTrue or false? Ammonia, NH3, will easily take a proton from water. A weak acid has a pKa of 3.0. It's conjugate base will easily take a proton from CH3QH.arrow_forward
- Chemistry The ascending order (from least to greatest) of acidity of the following compounds is: OH 2 OH Br 3 OH OH fla OHarrow_forwardConsider the following data on some weak acids and weak bases: base acid Bo K. Kp name formula name formula HCH;CO2 1.8 × 10¯ NH3 ammonia 1.8 × 10 аcetic acid -4 HF 4 6.8 x 10 ethylamine C,H,NH, 6.4 x 10 hydrofluoric acid Use this data to rank the following solutions in order of increasing pH. In other words, select a '1' next to the solution that will have the lowest pH, a '2' next to the solution that will have the next lowest pH, and so on. solution pH 0.1 M NH4Br v choose one 1 (lowest) 0.1 М КСН3СО2 4 (highest) 0.1 М KI choose one ♥ 0.1 M NaFarrow_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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