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4. (1 pt) If a molecule has multiple acidic protons with different acid strengths, how do...
1. How many non-equivalent protons are there in each of the molecule below? Label them (a, b, c, etc.) (0.3 pr, 0.23 pt...
1. How many non-equivalent protons are there in each of the molecule below? Label them (a, b, c, etc.) (0.3 pr, 0.23 pt each) B. CH3-CH=C=C-H CH3 epen 2. Predict the chemical shifts of all the labeled protons (Ha, Hb, Hc, Hd) in the structures below. Please note that the labeled protons could represent one or more equivalent H's. (1 pt, 0.5pt each) Hint: use the table below. TABLE 13-3 Typical Values of Chemical Shifts Type of Proton Type of...
How many different kinds of protons are present in the following molecule? Multiple Choice 2 5...
How many different kinds of protons are present in the following molecule? Multiple Choice 2 5 X 4 3
1 pt 1 pt Compound 4 has the formulu C, Hg. It reacts rapidly with acidic...
1 pt 1 pt Compound 4 has the formulu C, Hg. It reacts rapidly with acidic KMnO, but reacts with only 1 equivalent of H, over a palladium catalyst. On hydrogenation under conditions that reduce aromatic rings, reacts with 4 equivalents of Hy, and hydrocarbon , CyHe is produced. The reaction of A with KMnOgives CO, and a carboxylic acid C, C,H.02. Draw the structure of compound C in the box below. 1 pt 1 pt 1 pt You do...
Organic Lab Techni F 1) How many different sets of equivalent protons are there in the...
Organic Lab Techni F 1) How many different sets of equivalent protons are there in the following compound? CI CH3CCH2C(CH3)3 CH3 A. three B. four C. five D. six 2) Which of the following gives the furthest downfield shift from TMS in its proton NMR spectrum? A. CCI4 B. CHCI3 C. CH2Cl2 D. CH3CI 3) Which of the following has only a single peak in its proton NMR spectrum? H C C H3C CH3 A. only I B. only II...
identify which compound is more acidic and explain your choice. or each of the following compounds,...
identify which compound is more acidic and explain your choice. or each of the following compounds, Make sure you include structures of these which compounds in your answers ounds, 1. F (e) 24-Dimethy-3,5-hepanedione or 4, 4-Dimethy)-3,5-heptanedione (b) 1.2-Cyclopentanedione or 1,3-cyclopentanedione 2. When 2-hepten-4-one is treated with LDA, a proton is removed from one of the gamma (z) positions. identily which gamma position is deprotonated, and explain why the y proton is the most acidie proton in the compound. 3. Rank...
Phosphoric acid, H,PO (aq), is a triprotic acid, meaning that one molecule of the acid has...
Phosphoric acid, H,PO (aq), is a triprotic acid, meaning that one molecule of the acid has three acidic protons. Estimate the pH and the concentrations of all species in a 0.200 M phosphoric acid solution. pKalpKq2pKa3 2.16 7.21 12.32 (H2PO2) = M [H+= [H,P02] = M [OH-]= [HPO-1 = M pH=C pH = [PO]=
Phosphoric acid, H,PO (aq), is a triprotic acid, meaning that one molecule of the acid has...
Phosphoric acid, H,PO (aq), is a triprotic acid, meaning that one molecule of the acid has three acidic protons. Estimate the pH and the concentrations of all species in a 0.150 M phosphoric acid solution. pKq1 2.16 p Kq2 7.21 PK 3 12.32 | | | [H2PO4) = MH*) =( [H,PO,] = M (OH) = (HPO )= M pH = [PO-1=
Organic Lab Technique Problem Set 1) How many different sets of equivalent protons are there in...
Organic Lab Technique Problem Set 1) How many different sets of equivalent protons are there in the following compound? CI CH3CCH2C(CH3)3 CH3 5. Which or the spect A. three B. four C. five D. six 2) Which of the following gives the furthest downfield shift from TMS in its proton NMR spectrum? A. CC14 B. CHCl3 C. CH2C12 D. CH3CI 3) Which of the following has only a single peak in its proton NMR spectrum? I. (CH3)3CCI II. (CH3)2C=C(CH3)2 H,C...
4. (E)-1-methoxyprop-1-ene has two vinylic protons. Does the proton at C1 or C2 have a chemical...
4. (E)-1-methoxyprop-1-ene has two vinylic protons. Does the proton at C1 or C2 have a chemical shift of 4.6 ppm? Explain using multiplicity and resonance. IH 1Н 09 3 PPM 4. The proton with this chemical shift is off (circle one) C1 C2 Show the splitting diagram for this proton on the back AND the resonance structure of this molecule on the back. The multiplicity of this proton is and the resonance structure of the molecule indicates this proton is...
Predict which proton in ascorbic acid is the most acidic. Identify the appropriate atom by selecting...
Predict which proton in ascorbic acid is the most acidic.
Identify the appropriate atom by selecting each atom and
assigning it a map number of 1 until all atoms are mapped. To do
this, right-click on an atom and choose Atom Properties. (Mac
users: Use an equivalent for right-clicking.) Then, clear the
check mark to enable the Map field before entering a value.
Draw the form of ascorbic acid that is present in the body
(aqueous solution, pH = 7.4)....
1. How many non-equivalent protons are there in each of the molecule below? Label them (a, b, c, etc.) (0.3 pr, 0.23 pt each) B. CH3-CH=C=C-H CH3 epen 2. Predict the chemical shifts of all the labeled protons (Ha, Hb, Hc, Hd) in the structures below. Please note that the labeled protons could represent one or more equivalent H's. (1 pt, 0.5pt each) Hint: use the table below. TABLE 13-3 Typical Values of Chemical Shifts Type of Proton Type of...
How many different kinds of protons are present in the following molecule? Multiple Choice 2 5 X 4 3
1 pt 1 pt Compound 4 has the formulu C, Hg. It reacts rapidly with acidic KMnO, but reacts with only 1 equivalent of H, over a palladium catalyst. On hydrogenation under conditions that reduce aromatic rings, reacts with 4 equivalents of Hy, and hydrocarbon , CyHe is produced. The reaction of A with KMnOgives CO, and a carboxylic acid C, C,H.02. Draw the structure of compound C in the box below. 1 pt 1 pt 1 pt You do...
Organic Lab Techni F 1) How many different sets of equivalent protons are there in the following compound? CI CH3CCH2C(CH3)3 CH3 A. three B. four C. five D. six 2) Which of the following gives the furthest downfield shift from TMS in its proton NMR spectrum? A. CCI4 B. CHCI3 C. CH2Cl2 D. CH3CI 3) Which of the following has only a single peak in its proton NMR spectrum? H C C H3C CH3 A. only I B. only II...
identify which compound is more acidic and explain your choice. or each of the following compounds, Make sure you include structures of these which compounds in your answers ounds, 1. F (e) 24-Dimethy-3,5-hepanedione or 4, 4-Dimethy)-3,5-heptanedione (b) 1.2-Cyclopentanedione or 1,3-cyclopentanedione 2. When 2-hepten-4-one is treated with LDA, a proton is removed from one of the gamma (z) positions. identily which gamma position is deprotonated, and explain why the y proton is the most acidie proton in the compound. 3. Rank...
Phosphoric acid, H,PO (aq), is a triprotic acid, meaning that one molecule of the acid has three acidic protons. Estimate the pH and the concentrations of all species in a 0.200 M phosphoric acid solution. pKalpKq2pKa3 2.16 7.21 12.32 (H2PO2) = M [H+= [H,P02] = M [OH-]= [HPO-1 = M pH=C pH = [PO]=
Phosphoric acid, H,PO (aq), is a triprotic acid, meaning that one molecule of the acid has three acidic protons. Estimate the pH and the concentrations of all species in a 0.150 M phosphoric acid solution. pKq1 2.16 p Kq2 7.21 PK 3 12.32 | | | [H2PO4) = MH*) =( [H,PO,] = M (OH) = (HPO )= M pH = [PO-1=
Organic Lab Technique Problem Set 1) How many different sets of equivalent protons are there in the following compound? CI CH3CCH2C(CH3)3 CH3 5. Which or the spect A. three B. four C. five D. six 2) Which of the following gives the furthest downfield shift from TMS in its proton NMR spectrum? A. CC14 B. CHCl3 C. CH2C12 D. CH3CI 3) Which of the following has only a single peak in its proton NMR spectrum? I. (CH3)3CCI II. (CH3)2C=C(CH3)2 H,C...
4. (E)-1-methoxyprop-1-ene has two vinylic protons. Does the proton at C1 or C2 have a chemical shift of 4.6 ppm? Explain using multiplicity and resonance. IH 1Н 09 3 PPM 4. The proton with this chemical shift is off (circle one) C1 C2 Show the splitting diagram for this proton on the back AND the resonance structure of this molecule on the back. The multiplicity of this proton is and the resonance structure of the molecule indicates this proton is...
Predict which proton in ascorbic acid is the most acidic.
Identify the appropriate atom by selecting each atom and
assigning it a map number of 1 until all atoms are mapped. To do
this, right-click on an atom and choose Atom Properties. (Mac
users: Use an equivalent for right-clicking.) Then, clear the
check mark to enable the Map field before entering a value.
Draw the form of ascorbic acid that is present in the body
(aqueous solution, pH = 7.4)....
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