Hydrogen sulfide has a pKa of 7.05. If hydrocyanic acid has a pKa of 9.21 and...
Homework Answers
In the presence of hydrogen sulfide, hydrocyanic acid would act like a base instead of an acid.
A. No, as in the reaction of a weak acid, hydrogen sulfide with a weak base, hydrocyanic acid, the products formed will be the same on both sides of the reaction equation.
B. Hydrocyanic acid will at as base in presence of hydrogen sulfide because of the higher value of pKa of hydrocyanic acid than that of hydrogen sulfide.
*acid strength is inversely proportional to pKa value, i.e., strong acids have lower pKa value and weaker acid have higher pKa values.
C. Of the three acids mentioned, the weakest acid (with the highest pKa value= 9.21), hydrocyanic acid forms the most stable conjugate base.
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Hydrogen sulfide has a pKa of 7.05. If hydrocyanic acid has a pKa of 9.21 and...
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Which of the following statements best explains the pKa difference between cyclohexanol and phenol? How are...
Which of the following statements best explains the pKa
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of the following acids, which one would be least likely to donate urs proton due to...
of the following acids, which one would be least likely to
donate urs proton due to the unstable conjugate base?
1. which is the donatable hydrogen for each of the given
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2. what is the hybridization of the atom to which the
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Organic Chemistry 4. Below are two molecules, B and C. Explain the differences in pKa of...
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4. Below are two molecules, B and C. Explain the differences in pKa of the two molecules by drawing the conjugate base of molecule C and a resonance structure that would not be found in molecule B. Hint: Draw out the NO2 group. conjugate base of molecule C pKa- 29.5 molecule B NO2 pka= 8.6 molecule C 5. Below is the molecule Abilify, which is a top selling drug that is used to treat schizophrenia, bipolar disorder and...
6) Which of the following statements best explains the pKa difference between cyclohexanol and phenol? 7)...
6) Which of the following statements best explains the pKa
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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. A hydrogen atom in the organic base pyridine, CsHsN, can be substituted by various atoms or groups to give XCsH4N, where X is an atom such as Cl or a group such as CH3. The following table gives K, values for the conjugate acids of a variety of substituted pyridines. Atom or Group X (aq) + HCl(aq) → (aq) + Cl-(aq) NO K, of Conjugate Acid 5.9 x 10-2 1.5 x 10-4 6.8 x 10-6 1.0 x 10-6 н....
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...
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of the following acids, which one would be least likely to
donate urs proton due to the unstable conjugate base?
1. which is the donatable hydrogen for each of the given
structures?
2. what is the hybridization of the atom to which the
donatable hydrogen is attached?
3. do any of the atoms identified in question 2 have a
positive charge? if so explain why this is not a good thing and
makes the hydrogen more donatable as opposed to...
Organic Chemistry
4. Below are two molecules, B and C. Explain the differences in pKa of the two molecules by drawing the conjugate base of molecule C and a resonance structure that would not be found in molecule B. Hint: Draw out the NO2 group. conjugate base of molecule C pKa- 29.5 molecule B NO2 pka= 8.6 molecule C 5. Below is the molecule Abilify, which is a top selling drug that is used to treat schizophrenia, bipolar disorder and...
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...
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