What accounts for/explains the differences in pKa between phenol (pKa = 10) and ethanol (pKa = 17)?
What accounts for/explains the differences in pKa between phenol (pKa = 10) and ethanol (pKa =...
Which of the following statements best explains the pKa difference between cyclohexanol and phenol? How are the following compounds related? Which reagents are needed to convert 1-octyne to 2-octanone? 6. Which of the following statements best explains the pKa difference between cyclohexanol and phenol? a. cyclohexanol has a lower pka than phenol because spoxygens anions are more stable than sp2 oxygen anions. b. phenol has a higher pka than cyclohexanol because the conjugate base is resonance stabilized C. cyclohexanol has...
6) Which of the following statements best explains the pKa difference between cyclohexanol and phenol? 7) How are the compounds related? 8) Which regeants are used to convert 1-octyne to 2-octanone 9) How many stereoisomers are possible for bromo-6-methyl-4-heptene-2-ol? 6. (4 points) Which of the following statements best explains the pka difference between cyclohexanol and phenol? a. cyclohexanol has a lower pka than phenol because spoxygens anions are more stable than sp? oxygen anions. b. phenol has a higher pka...
1. 2,6-dichloroindophenol has a pKa value of 5.9 and is 10,000 times more acidic than phenol (pKa = 10). Draw resonance structures for the conjugate base of 2,6-dichloroindophenol and use them to explain the differences in pKa values.
3) Draw resonance diagrams to explain why phenol has a pka pf 10 whereas aliphatic alcohols like ethanol have a pka of 16. 4) Why are aldehydes generally more reactive towards nucleophilic attack than ketones? 5) Suggest possible steps involved in the synthesis of the following compound starting propene. Note for each step involved your desired product must be a major product. Also note the two arrows indicate an unknown number of steps are involved.
Explain why the different positions have different pKa values, using resonance structures. The pka of phenol (C6H5OH) is 10.0. When a nitro group (NO) is attached to the ring, the pka decreases. Explain why the different positions have different pka values, using resonance structures. OH OH OH - ၄ NO, NO₂ 10. 0 pK, = 7 .23 8.35 7.1
What are the differences between liquids and solids? b. What are the differences between liquids and gases? Define briefly: boiling point melting point What is the difference between a nomadic liquid crystal and a sematic A liquid crystal? Ethanol (C_2H_5OH) Delta H_vap =38.56 kJ/mol. Delta H_fus= 5.02kJ/mol, Boiling point = 78degree C, melting point = -114 degree C Specific heat of solid ethanol = 0.97J/g-K, specific heat of liquid ethanol = 2.3J/g-K How much heat does it take to convert...
(b) Explain the following pKa values by drawing out resonance structures of the conjugate base for the following: (i) pKa 15.5 ethanol pKa 10 (ii) phenol pKa 7.2 (5 marks) (ii) p-nitrophenol
4. (15) A saturated solution of phenol, C6H5OH, a very weak acid with pKa=10.00, has pH=4.90. What is the molarity of phenol in this solution?
draw resonance structures for the conjugate base of 2,6dichloroibdophenol and use them to explain the differences in the pka values a value of 5.9 and is 10.000 times more 2,6-dichloroindophenol (see in Part III) has a pka value of 5.9 and is 10000 acidic than phenol (pKa =10). Draw resonance structures for the conjugate base of 26 dichloroindophenol and use them to explain the differences in the pKa values.
The conjugate acid of ethanol amine (HOCH2CH2NH3+) has pKa = 9.50. What can you conclude about a solution of this amine in which [RNH3+)] = 10 x [RNH2]?) Question 9 options: a) pH = 10.50 b) pH = 9.50 c) pH = 8.50 d) None of the above.