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Organic Chemistry
- Why is H2SeO4 a weak acidarrow_forwardWill acetylene react with sodium hydride according to the following equation to form a salt and hydrogen, H2? Using pKa values given in Table 4.1, calculate Keq for this equilibrium.arrow_forwardWhich is the stronger base between NH3 and H2O ,is low pka =strong base?arrow_forward
- Calculate the pH of 1M solution of acedic acid (pKa = 4.76)?arrow_forwardOne of the three molecules is much more acidic than the other two. Identify the molecule and explain why it is so much more acidic that the other two. H Harrow_forwardThe pKa of ascorbic acid (vitamin C, page 55) is 4.17, showing that it is slightly more acidic than acetic acid (CH3COOH, pKa 4.74). Compare the most stable conjugate base of ascorbic acid with the conjugate base of acetic acid, and suggest why these two compounds have similar acidities, even though ascorbic acid lacks the carboxylic acid (COOH) group.arrow_forward
- We have a 0.1 M solution of dichloroacetic acid that has a pKa =1.48.Calculate % α [H3O+] [Conjugate Base] and [Acid] in equilibriumarrow_forwardCalculate the pH of a 0.295 M solution of ethylenediamine (H₂NCH,CH,NH₂). The pKa values for the acidic form of ethylenediamine (HNCH,CH,NH) are 6.848 (pKa1) and 9.928 (pKa2). pH = Calculate the concentration of each form of ethylenediamine in this solution at equilibrium. [H2NCH2CH2NH₂] = [H2NCH,CH,NH] = [HNCH,CH,NH3] = M M Marrow_forwardMCQ 112: Cagy + H,Oo→ Ca(OH)2) + Hz- The product Ca(OH), is A. highly soluble in water B. sparingly soluble in water C. insoluble in water D. sparingly insoluble in waterarrow_forward
- Fill in the left side of this equilibrium constant equation for the reaction of diethylmethylamine (C,H13N), a weak base, with water. Ü - K,arrow_forwardHydroxide (-OH) can react as a Brønsted–Lowry base (and remove a proton), or a Lewis base (and attack a carbon atom). (a) What organic product is formed when -OH reacts with the carbocation (CH3)3C+ as a Brønsted–Lowry base? (b) What organic product is formed when -OH reacts with (CH3)3C+ as a Lewis base?arrow_forwardNaHCO3 can deprotonate benzoic acid but cannot deprotonate phenol. On the other hand, NaOH can deprotonate both benzoic acid and phenol. Given this information, rank the molecules numbered I to V in order of decreasing acidity. COH cOH он H,0 H,CO, IV CH3 II I II (A) V > II >I > III > IV (В) II > 1 > V > III IV (C) II > V >I > IV > IIarrow_forward
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