Concept explainers
(a)
Interpretation:
Considering the compound melatonin, the concentration in the human body decreases with age has to be indicated as true or false.
Concept Introduction:
Organic compounds are the important basis of life. They include gasoline, coal, dyes, and clothing fibers etc. The compounds that are obtained from living organisms are termed as organic compounds and those obtained from the earth are known as inorganic compounds. Organic compounds are found in earth also apart from living organisms. All the organic compounds contain the element carbon. Urea was synthesized in the laboratory which is an organic compound.
Organic compounds contain heteroatom also. Some of them are nitrogen, sulfur, oxygen etc. Nitrogen containing organic compounds is of two important types and they are
(b)
Interpretation:
Considering the compound melatonin, “good night’s sleep” is associated with low level of melatonin has to be indicated as true or false.
Concept Introduction:
Organic compounds are the important basis of life. They include gasoline, coal, dyes, and clothing fibers etc. The compounds that are obtained from living organisms are termed as organic compounds and those obtained from the earth are known as inorganic compounds. Organic compounds are found in earth also apart from living organisms. All the organic compounds contain the element carbon. Urea was synthesized in the laboratory which is an organic compound.
Organic compounds contain heteroatom also. Some of them are nitrogen, sulfur, oxygen etc. Nitrogen containing organic compounds is of two important types and they are amines, amides.
(c)
Interpretation:
Considering the compound melatonin, for “jet lag” treatment melatonin is used as a prescription drug has to be indicated as true or false.
Concept Introduction:
Organic compounds are the important basis of life. They include gasoline, coal, dyes, and clothing fibers etc. The compounds that are obtained from living organisms are termed as organic compounds and those obtained from the earth are known as inorganic compounds. Organic compounds are found in earth also apart from living organisms. All the organic compounds contain the element carbon. Urea was synthesized in the laboratory which is an organic compound.
Organic compounds contain heteroatom also. Some of them are nitrogen, sulfur, oxygen etc. Nitrogen containing organic compounds is of two important types and they are amines, amides.
(c)
Interpretation:
Considering the compound melatonin, the number of carbon atoms and nitrogen atoms is equal has to be indicated as true or false.
Concept Introduction:
Organic compounds are the important basis of life. They include gasoline, coal, dyes, and clothing fibers etc. The compounds that are obtained from living organisms are termed as organic compounds and those obtained from the earth are known as inorganic compounds. Organic compounds are found in earth also apart from living organisms. All the organic compounds contain the element carbon. Urea was synthesized in the laboratory which is an organic compound.
Organic compounds contain heteroatom also. Some of them are nitrogen, sulfur, oxygen etc. Nitrogen containing organic compounds is of two important types and they are amines, amides.
Want to see the full answer?
Check out a sample textbook solutionChapter 6 Solutions
Organic And Biological Chemistry
- The number of imaginary replicas of a system of N particlesA) can never become infiniteB) can become infiniteC) cannot be greater than Avogadro's numberD) is always greater than Avogadro's number.arrow_forwardElectronic contribution to the heat capacity at constant volume A) is always zero B) is zero, except for excited levels whose energy is comparable to KT C) equals 3/2 Nk D) equals Nk exp(BE)arrow_forwardPlease correct answer and don't used hand raitingarrow_forward
- Calculate the packing factor of CaTiO3. It has a perovskite structure. Data: ionic radii Co²+ = 0.106 nm, Ti4+ = 0.064 nm, O² = 0.132 nm; lattice constant is a = 2(rTi4+ + ro2-). Ca2+ 02- T14+ Consider the ions as rigid spheres. 1. 0.581 or 58.1% 2. -0.581 or -58.1 % 3. 0.254 or 25.4%arrow_forwardGeneral formula etherarrow_forwardPlease provide the retrosynthetic analysis and forward synthesis of the molecule on the left from the starting material on the right. Please include hand-drawn structures! will upvote! Please correct answer and don't used hand raitingarrow_forward
- Please provide the retrosynthetic analysis and forward synthesis of the molecule on the left from the starting material on the right. Please include hand-drawn structures! will upvote!arrow_forward(please correct answer and don't used hand raiting) Please provide the retrosynthetic analysis and forward synthesis of the molecule on the left from the starting material on the right. Please include hand-drawn structures! will upvote!arrow_forwardCaTiO3 has a perovskite structure. Calculate the packing factor.Data: ionic radii Co+2 = 0.106 nm, Ti+4 = 0.064 nm, O-2 = 0.132 nm; lattice constant is a = 2(rTi4+ + rO-2).(a) 0.581(b) -0.581(c) 0.254(d) -0.254arrow_forward
- In the initial linear section of the stress-strain curve of a metal or alloy. Explain from the point of view of atomic structure?(a) No, the atomic level properties of the material can never be related to the linear section.(b) The elastic zone is influenced by the strength of the bonds between atoms.(c) The stronger the bond, the less rigid and the lower the Young's Modulus of the material tested.(d) The stronger the bond, the less stress is necessary to apply to the material to deform it elastically.arrow_forwardThe degree of polymerization of polytetrafluoroethylene (Teflon) is 7500 (mers/mol). If all polymer chains have equal length, state the molecular weight of the polymer and the total number of chains in 1000 g of the polymer(a) 50 000 g/mol; 0.03·1020 chains(b) 100 000 g/mol; 1.03·1020 chains(c) 750 000 g/mol; 8.03·1020 chainsarrow_forwardIn natural rubber or polyisoprene, the trans isomer leads to a higher degree of crystallinity and density than the cis isomer of the same polymer, because(a) it is more symmetrical and regular.(b) it is less symmetrical.(c) it is irregular.arrow_forward
- Chemistry for Today: General, Organic, and Bioche...ChemistryISBN:9781305960060Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. HansenPublisher:Cengage LearningGeneral, Organic, and Biological ChemistryChemistryISBN:9781285853918Author:H. Stephen StokerPublisher:Cengage Learning
- Organic And Biological ChemistryChemistryISBN:9781305081079Author:STOKER, H. Stephen (howard Stephen)Publisher:Cengage Learning,Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage LearningChemistry: Matter and ChangeChemistryISBN:9780078746376Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl WistromPublisher:Glencoe/McGraw-Hill School Pub Co