Explain (based on intermolecular forces) why salicylic acid (structure at right; pKa = 3.0) is more soluble at pH 6.0 than at pH 2.0.
Explain (based on intermolecular forces) why salicylic acid (structure at right; pKa = 3.0) is more...
Explain in detail please! A7 The intermolecular attractive forces between two salicylic acid molecules (structure for one molecule shown below) are: ОН ОН (A) Dispersion forces alone (B) T-t (pi-pi) interactions alone (C) Hydrogen bonding alone (D) Dispersion forces and hydrogen bonding (E) Dispersion forces, -T (pi-pi) interactions and hydrogen bonding
Propose a structure for the polymer formed by intermolecular reaction of salicylic acid during the synthesis of aspirin. Which is the stronger acid, aspirin or salicylic acid?
2. A structure of Luminol is shown with all functional groups protonated and their pka labeled. Use words and structures to answer a and b. Luminol pke 2 9 a. Acetic acid was added at the end of the reduction step to obtain a pH of - 3-4.2pts i. Draw the structure of the luminol at pH 3. ii. Refering to the structure in a.i.), explain why the luminol precipitates from the aqueous solution at this pH. NH₂ NH N-H...
Select the single best answer. Explain in terms of intermolecular forces the following: Why NaCl has a higher melting point than 12 Because NaCl is soluble in water, and I, is not. Because NaCl is an ionic compound, and the ion-ion attractions are much stronger than the dispersion forces between the I, molecules. Because NaCl is a solid, and I, is a liquid. Because NaCl can form hydrogen bonds, and I cannot.
Based on their composition and structure, list CH3ClCH3Cl, CH3CH2CH3CH3CH2CH3, and CH3CH2OHCH3CH2OH in order of decreasing intermolecular forces. Explain why
H2A is a diprotic acid of which pKa values are 3.0 and 7.0. Answer to the following questions. (a) The pH of an aqueous solution prepared by dissolution of HzA can be approximately calculated by assuming that H2A is a monoprotic acid. Explain why this assumption is valid in terms of equilibrium constant and fractional composition. (10 pt)
Is KHTar more soluble in water or in 0.10M NaNO3? Explain in terms of the intermolecular forces experienced by the solute ions.
Chemistry 2 help with lab questions! Intermolecular forces are not chemical bonds. Explain the difference. When answering the rest of the essay questions, use language that clearly distinguishes between chemical bonds and intermolecular forces. Why do compounds with higher intermolecular forces have higher boiling points? Show that you understand why a higher temperature is needed to boil a compound that has stronger intermolecular forces. Which has greater dispersion forces, hexane or pentane? How can you use their molecular formulas to...
OH pka 3.1 pKa 4.5 HO -OH pka 5.8 depicts the structure of citric acid with the corresponding pka values for each of the three acids. a. Explain why the carboxylic acid at the top of the structure is the most acidic. b. Suggest a reason why the remaining two acids would have different pka values.
1. What is a structure based explanation for why acetamide is more stable than acetone. I'm pretty sure it has to do with resonance. 2. also for question F im fairly sure it has to do with resonance again but I not sure exactly why. could someone answer and explain? F. Draw the conjugate base for each compound below and draw the appropriate structures to explain the difference in N-H acidity pKa~9.5 pKa 16 N-H N-H