Homework Answers
1. Ans: Both (The compound has molecular weight of 94) and (The compound contains an OH group and Sp2 hybridized C-H bonds) are true statements.
2. Ans : The mass of any cataionic species.
3. Ans : A.
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Which of the following statements is (are) true about a compound that has a molecular ion...
An unknown compound A has an empirical formula of c3h6o and a molecular ion peak in...
An unknown compound A has an empirical formula of c3h6o and a
molecular ion peak in its mass spectrum at m/z 116. It also has no
IR absorption at 3200-3600cm^-1 but shows a peak at 1740cm^-1. The
H NMR spectra data of A is given below in table format. Use this
information to answer questions a-d below.
9 (15 Points). An unknown compound A has empiricl rmula of C,HO and a molecular ion peak in its mass spectrum at an...
Which of the following statements is true for the peak in a mass spectrum that corresponds...
Which of the following statements is true for the peak in a mass spectrum that corresponds to the molecular ion? a. It has the highest m/e value of all the peaks in the spectrum b. It has the largest peak height in the spectrum c. The m/e value corresponds to a very stable carbocation d. The m/e value equals the molecular weight of the compound
The mass spectrum of compound A shows molecular ion peak at m/z 88. The IR spectrum...
The mass spectrum of compound A shows molecular ion peak at m/z 88. The IR spectrum of this compound has a broad peak between 3200 and 3550 cm-1. The 1H NMR spectrum of A shows the following peaks: a triplet at d 0.9, a singlet at d 1.1, one more singlet at d 1.15, and a quartet at d 1.6. The area ratio of these peaks is 3:6:1:2. The 13C NMR contains 4 signals. In the space below, propose a...
organic chemistry 4, Identify the following statements as either true (T) or false (F), or circle...
organic chemistry
4, Identify the following statements as either true (T) or false (F), or circle one of the choices provided. The structures references are shown below. The rate of an Syl reaction will double if the concentration of the nucleophile is doubled. A is more stable than B. Compound C has a higher pKa than compound D. The IR spectrum of E would show a strong peak between 1700 cm and 1800 cm. The structure F would be named...
Complete the Lewis structure of the compound shown below and indicate which of the following statements are true. 46 Η...
Complete the Lewis structure of the compound shown below and indicate which of the following statements are true. 46 Η Η H C =C-C-N H=21日 An sp2 hybrid orbital on C-1 overlaps with an sp hybrid orbital on C-2 to form the sigma bond between C-1 and C-2. There are ten o bonds in this molecule. There are five i bonds in this molecule. The C-2 and C-3 atoms cannot rotate about the internuclear axis between the two atoms since...
A compound of unknown structure gave the following spectroscopic data: Mass spectrum: M+ = 88.1 IR:...
A compound of unknown structure gave the following
spectroscopic data:
Mass spectrum: M+ = 88.1
IR: 3600cm-1
1H NMR: 1.4 (2H, quartet, J=7Hz); 1.2 (6H, singlet); 1.0 (1H,
singlet); 0.9 (3H, triplet, J=7Hz)
13C NMR: 74, 35, 27, 25
a. assuming that the compound contains C and H but may or may not
contain O, give three possible molecular formulas.
b. how many protons (H) does the compound contain?
c. what functional group(s) does the compound contain?
d. how many...
3. the followong compound has a molecular formula of C6H10O2 and has two stronf syretching bibration peaks in its FTIR spectrum at 1725 and 1200cm-1 giving rise to a specific functional group. what i...
3. the followong compound has a molecular formula of C6H10O2
and has two stronf syretching bibration peaks in its FTIR spectrum
at 1725 and 1200cm-1 giving rise to a specific functional group.
what is this molecule.
4. based on the mass spectrum below-which heteratom (S, Br,
Cl) is present in the molecule that produces this spectrum?
5. which functional group is present in the molecule that
produces the followong IR spectra?
please answer questions 3-5
Verizon 7:24 PM 3 of...
Which of the following statements is (are) true about free radical halogenation of alkanes? choose only...
Which of the following statements is (are) true about free radical halogenation of alkanes? choose only one 1) The first of the chain-propagating steps is rate-determining. 2) The reaction proceeds by way of a flat sp2 hybridized free radical. 3) The chain-initiating step involves cleavage of a carbon-hydrogen bond to afford a carbon radical and a hydrogen atom. 4) Statements (The first of the chain-propagating steps is rate-determining) and (The reaction proceeds by way of a flat sp2 hybridized free...
***Please explain why you chose your answer*** н H Which of the following statements about the...
***Please explain why you chose your
answer***
н H Which of the following statements about the molecule vanillin is true? a) Each of the C-H bonds forms by overlap of a hybrid orbital with the s orbital of the hydrogen atom. b) There are 3 atoms with sp3 hybridization. c) There are 8 electrons in pi bonds and 6 lone pairs in the completed Lewis dot structure for vanillin. HO- C d) There are 7 carbons with sp2 hybridization and...
An unknown compound has the molecular formula of CoH13N and produces the following NMR spectrum. Provide...
An unknown compound has the molecular formula of CoH13N and produces the following NMR spectrum. Provide the DOU and Draw the compound. 2. 2 3. The following compound has a Molecular Formula of CoHoO and has two strong stretching vibration peaks in its FTIR spectrum at 1725 and 1200 cm1 giving rise to a specific functional group. What is this molecule (pay attention to J values and stereochemistry)? 15 Hz 12) C1) C1) b. 1-3 H 6.9 5.9 1.9 7.0...
An unknown compound A has an empirical formula of c3h6o and a
molecular ion peak in its mass spectrum at m/z 116. It also has no
IR absorption at 3200-3600cm^-1 but shows a peak at 1740cm^-1. The
H NMR spectra data of A is given below in table format. Use this
information to answer questions a-d below.
9 (15 Points). An unknown compound A has empiricl rmula of C,HO and a molecular ion peak in its mass spectrum at an...
organic chemistry
4, Identify the following statements as either true (T) or false (F), or circle one of the choices provided. The structures references are shown below. The rate of an Syl reaction will double if the concentration of the nucleophile is doubled. A is more stable than B. Compound C has a higher pKa than compound D. The IR spectrum of E would show a strong peak between 1700 cm and 1800 cm. The structure F would be named...
Complete the Lewis structure of the compound shown below and indicate which of the following statements are true. 46 Η Η H C =C-C-N H=21日 An sp2 hybrid orbital on C-1 overlaps with an sp hybrid orbital on C-2 to form the sigma bond between C-1 and C-2. There are ten o bonds in this molecule. There are five i bonds in this molecule. The C-2 and C-3 atoms cannot rotate about the internuclear axis between the two atoms since...
A compound of unknown structure gave the following
spectroscopic data:
Mass spectrum: M+ = 88.1
IR: 3600cm-1
1H NMR: 1.4 (2H, quartet, J=7Hz); 1.2 (6H, singlet); 1.0 (1H,
singlet); 0.9 (3H, triplet, J=7Hz)
13C NMR: 74, 35, 27, 25
a. assuming that the compound contains C and H but may or may not
contain O, give three possible molecular formulas.
b. how many protons (H) does the compound contain?
c. what functional group(s) does the compound contain?
d. how many...
3. the followong compound has a molecular formula of C6H10O2
and has two stronf syretching bibration peaks in its FTIR spectrum
at 1725 and 1200cm-1 giving rise to a specific functional group.
what is this molecule.
4. based on the mass spectrum below-which heteratom (S, Br,
Cl) is present in the molecule that produces this spectrum?
5. which functional group is present in the molecule that
produces the followong IR spectra?
please answer questions 3-5
Verizon 7:24 PM 3 of...
***Please explain why you chose your
answer***
н H Which of the following statements about the molecule vanillin is true? a) Each of the C-H bonds forms by overlap of a hybrid orbital with the s orbital of the hydrogen atom. b) There are 3 atoms with sp3 hybridization. c) There are 8 electrons in pi bonds and 6 lone pairs in the completed Lewis dot structure for vanillin. HO- C d) There are 7 carbons with sp2 hybridization and...
An unknown compound has the molecular formula of CoH13N and produces the following NMR spectrum. Provide the DOU and Draw the compound. 2. 2 3. The following compound has a Molecular Formula of CoHoO and has two strong stretching vibration peaks in its FTIR spectrum at 1725 and 1200 cm1 giving rise to a specific functional group. What is this molecule (pay attention to J values and stereochemistry)? 15 Hz 12) C1) C1) b. 1-3 H 6.9 5.9 1.9 7.0...
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