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A hydrocarbon of unknown structure g tHIS Intormation to answer questions 13-14 has the formula CgHz4....
please explain 4. An unknown hydrocarbon has the molecular formula CH10- Upon catalytic hydrogenation over Lindlar...
please explain
4. An unknown hydrocarbon has the molecular formula CH10- Upon catalytic hydrogenation over Lindlar catalyst, 1 equivalent of H2 is absorbed. On hydrogenation over a palladium catalyst, 3 equivalents of H2 are absorbed. a) How many degrees of unsaturation are present in the unknown compound? b) How many triple bonds are present? c) How many double bonds are present? d) How many rings are present? e) Draw a structure that fits the data
4. An unknown hydrocarbon has...
An unknown hydrocarbon (A) with the molecular formula C9H16 reacts with H2 and PD/C to yeild...
An
unknown hydrocarbon (A) with the molecular formula C9H16 reacts
with H2 and PD/C to yeild B (C9H20). Treatment of A with ozone
followed by zinc and acetic acid yielded only acetone (C) and
malonaldehyde (D). What is the structure of A and B?
7. (10pts) An nknown hydrocarbon (A) with a molecular formula CHis reacts with Ha and PdC to yield B (CH2). Treatment of A with ozone followed by zinc and acetic acid yielded only acetone (C) and...
3. (7 points total) Hydrocarbon A, C10H14, has a UV absorption at Amax = 236 nm....
3. (7 points total) Hydrocarbon A, C10H14, has a UV absorption at Amax = 236 nm. Upon catalytic hydrogenation (H2, Pd/C), Hydrocarbon B, C10H18, is formed. Ozonolysis of A, followed by zinc/acetic acid treatment, yields the following diketo dialdehyde: a. (4 points) Propose two possible structures for hydrocarbon A: b. (3 points) Based on the UV data, which proposed structure for A is correct? Why? Justify your answer with Woodward-Fieser calculations.
13. In the molecular orbital model of benzene, how many pi electrons are delocalized about the...
13. In the molecular orbital model of benzene, how many pi electrons are delocalized about the ring? A) 2 в) з C) 4 D) 5 E) 6 14, In the molecularorinl model of benzene,ow manypi electrons are in bonding molecular orbitals? A) 6 B) 5 C) 4 D) 3 E) 2 15. Cyelopentadiene is unusually acidic for a hydrocarbon. An explanation for this is the following statement A) The carbon atoms of cyclopentadiene are all sp'-hybridized B) Cyclopentadiene is aromatic....
Naphthalene, a hydrocarbon, has an approximate molar mass of 128 g/mole. If the combustion of 64...
Naphthalene, a hydrocarbon, has an approximate molar mass of 128 g/mole. If the combustion of 64 produces 0.3599 g H20 and 2.1977 g CO2, what is the molecular formula of this compound? 3. A mass of 0.4113 g of an unknown acid, HA, is titrated with NaOH. If the acid reacts with 28.10 mL of 0.1055 M NaOH(aq), what is the molar mass of the acid? 4. The amount of calcium in a 15.0-g sample was determined by converting the...
Answer questions 7 and 8) based on this energy diagram 14. Choose the correct structure for:...
Answer questions 7 and 8) based on this energy diagram 14. Choose the correct structure for: trans-1,3-diethylcyclopentane CH.CH CHOM CHCH Energy CHOH B. оцон CH.CH 7. How many transition states are there in this reaction? a. 1 b. c. 4 d. 2 15. Which of these Newman projections show bromine antiperiplanar to one another? H-9 8. What type of reaction is this? a. endergonic b. exergonic c. isogonic d. hypertonic BC 9. Which alkane will have the highest boiling point?...
____ 1. The diagram below represents serine, a polar, uncharged amino acid. Which functional group gives...
____ 1. The diagram below represents serine, a polar, uncharged
amino acid. Which functional group gives serine its
distinct property?
a. H3
b. CH2OH
c. –H
d. COO–
____ 2. The monomers shown below are monomers for which of the
following natural polymers?
a. polysaccharides
b. plastics
c. DNA
d. proteins
____ 3. Which of the following processes illustrates the production
of a protein?
a. specific code for amino acids --> amino acid chain -->
gene --> DNA --> specific...
can someone help me find the answeres for these questions? The answer you fill in on...
can someone help me find the answeres for these
questions?
The answer you fill in on your bubble sheet is the one that will You should circle the answer on this sheet for your own reference You can only get the 4 points for this question if you have filled in your name and Do you understand this? а.yes IsU bubble. 1. ly on the bubble sheet and you completely and darkly fill in the ""Check following on the bubble...
e. 18 Test Your Knowledge MULTIPLE CHOICE: Choose the one best answer. 1. Each element has...
e. 18 Test Your Knowledge MULTIPLE CHOICE: Choose the one best answer. 1. Each element has its own characteristic atom in which a. the atomic mass is constant. b. the atomic number is constant. c. the mass number is constant. d. Two of the above are correct. e. All of the above are correct. 2. Which of the following is not a trace element in the human body? a. iodine b. zinc c. iron d. calcium e. fluorine 3. A...
The following primary standards can be used for the standardization of bases except. a. Benzoic acid...
The following primary standards can be used for the standardization of bases except. a. Benzoic acid b. Oxalic acid c. CaCO3 d. KHP A solution that may contain NaOH, Na 2CO3, and NaHCO3, alone or in compatible combination was titrated with 0.1200 M HCl. The volume of the acid required to reach the phenolphthalein endpoint was 25.67 mL while 38.13 mL to reach the methyl red endpoint. What are the components of the mixture? a. Na2CO3 only b. NaOH only...
please explain
4. An unknown hydrocarbon has the molecular formula CH10- Upon catalytic hydrogenation over Lindlar catalyst, 1 equivalent of H2 is absorbed. On hydrogenation over a palladium catalyst, 3 equivalents of H2 are absorbed. a) How many degrees of unsaturation are present in the unknown compound? b) How many triple bonds are present? c) How many double bonds are present? d) How many rings are present? e) Draw a structure that fits the data
4. An unknown hydrocarbon has...
An
unknown hydrocarbon (A) with the molecular formula C9H16 reacts
with H2 and PD/C to yeild B (C9H20). Treatment of A with ozone
followed by zinc and acetic acid yielded only acetone (C) and
malonaldehyde (D). What is the structure of A and B?
7. (10pts) An nknown hydrocarbon (A) with a molecular formula CHis reacts with Ha and PdC to yield B (CH2). Treatment of A with ozone followed by zinc and acetic acid yielded only acetone (C) and...
3. (7 points total) Hydrocarbon A, C10H14, has a UV absorption at Amax = 236 nm. Upon catalytic hydrogenation (H2, Pd/C), Hydrocarbon B, C10H18, is formed. Ozonolysis of A, followed by zinc/acetic acid treatment, yields the following diketo dialdehyde: a. (4 points) Propose two possible structures for hydrocarbon A: b. (3 points) Based on the UV data, which proposed structure for A is correct? Why? Justify your answer with Woodward-Fieser calculations.
13. In the molecular orbital model of benzene, how many pi electrons are delocalized about the ring? A) 2 в) з C) 4 D) 5 E) 6 14, In the molecularorinl model of benzene,ow manypi electrons are in bonding molecular orbitals? A) 6 B) 5 C) 4 D) 3 E) 2 15. Cyelopentadiene is unusually acidic for a hydrocarbon. An explanation for this is the following statement A) The carbon atoms of cyclopentadiene are all sp'-hybridized B) Cyclopentadiene is aromatic....
Naphthalene, a hydrocarbon, has an approximate molar mass of 128 g/mole. If the combustion of 64 produces 0.3599 g H20 and 2.1977 g CO2, what is the molecular formula of this compound? 3. A mass of 0.4113 g of an unknown acid, HA, is titrated with NaOH. If the acid reacts with 28.10 mL of 0.1055 M NaOH(aq), what is the molar mass of the acid? 4. The amount of calcium in a 15.0-g sample was determined by converting the...
Answer questions 7 and 8) based on this energy diagram 14. Choose the correct structure for: trans-1,3-diethylcyclopentane CH.CH CHOM CHCH Energy CHOH B. оцон CH.CH 7. How many transition states are there in this reaction? a. 1 b. c. 4 d. 2 15. Which of these Newman projections show bromine antiperiplanar to one another? H-9 8. What type of reaction is this? a. endergonic b. exergonic c. isogonic d. hypertonic BC 9. Which alkane will have the highest boiling point?...
____ 1. The diagram below represents serine, a polar, uncharged
amino acid. Which functional group gives serine its
distinct property?
a. H3
b. CH2OH
c. –H
d. COO–
____ 2. The monomers shown below are monomers for which of the
following natural polymers?
a. polysaccharides
b. plastics
c. DNA
d. proteins
____ 3. Which of the following processes illustrates the production
of a protein?
a. specific code for amino acids --> amino acid chain -->
gene --> DNA --> specific...
can someone help me find the answeres for these
questions?
The answer you fill in on your bubble sheet is the one that will You should circle the answer on this sheet for your own reference You can only get the 4 points for this question if you have filled in your name and Do you understand this? а.yes IsU bubble. 1. ly on the bubble sheet and you completely and darkly fill in the ""Check following on the bubble...
e. 18 Test Your Knowledge MULTIPLE CHOICE: Choose the one best answer. 1. Each element has its own characteristic atom in which a. the atomic mass is constant. b. the atomic number is constant. c. the mass number is constant. d. Two of the above are correct. e. All of the above are correct. 2. Which of the following is not a trace element in the human body? a. iodine b. zinc c. iron d. calcium e. fluorine 3. A...
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