The total number of five-membered rings that are present in the structure of a cholesterol molecule has to be stated. Concept introduction: The structure of the lipid that is based upon the fused system of rings which includes three identical six-membered rings and only one five-membered ring is known as steroid. The fused ring system of the steroid is known as the steroid nucleus. A steroid of C 27 molecule which is a unit of cell membrane and also a precursor of another steroid-based lipid is known as cholesterol.
The total number of five-membered rings that are present in the structure of a cholesterol molecule has to be stated. Concept introduction: The structure of the lipid that is based upon the fused system of rings which includes three identical six-membered rings and only one five-membered ring is known as steroid. The fused ring system of the steroid is known as the steroid nucleus. A steroid of C 27 molecule which is a unit of cell membrane and also a precursor of another steroid-based lipid is known as cholesterol.
Definition Definition Group of atoms that shape the chemical characteristics of a molecule. The behavior of a functional group is uniform in undergoing comparable chemical reactions, regardless of the other constituents of the molecule. Functional groups aid in the classification and anticipation of reactivity of organic molecules.
Chapter 19, Problem 19.98EP
(a)
Interpretation Introduction
Interpretation: The total number of five-membered rings that are present in the structure of a cholesterol molecule has to be stated.
Concept introduction: The structure of the lipid that is based upon the fused system of rings which includes three identical six-membered rings and only one five-membered ring is known as steroid. The fused ring system of the steroid is known as the steroid nucleus.
A steroid of C27 molecule which is a unit of cell membrane and also a precursor of another steroid-based lipid is known as cholesterol.
(b)
Interpretation Introduction
Interpretation: The total number of ester linkages that are present in the structure of a cholesterol molecule has to be stated.
Concept introduction: The structure of the lipid that is based upon the fused system of rings which includes three identical six-membered rings and only one five-membered ring is known as steroid. The fused ring system of the steroid is known as the steroid nucleus.
A steroid of C27 molecule which is a unit of cell membrane and also a precursor of another steroid-based lipid is known as cholesterol.
(c)
Interpretation Introduction
Interpretation: The total number of methyl substituents that are present in the structure of a cholesterol molecule has to be stated.
Concept introduction: The structure of the lipid that is based upon the fused system of rings which includes three identical six-membered rings and only one five-membered ring is known as steroid. The fused ring system of the steroid is known as the steroid nucleus.
A steroid of C27 molecule which is a unit of cell membrane and also a precursor of another steroid-based lipid is known as cholesterol.
(d)
Interpretation Introduction
Interpretation: The total number of functional groups that are present in the structure of a cholesterol molecule has to be stated.
Concept introduction: The structure of the lipid that is based upon the fused system of rings which includes three identical six-membered rings and only one five-membered ring is known as steroid. The fused ring system of the steroid is known as the steroid nucleus.
A steroid of C27 molecule which is a unit of cell membrane and also a precursor of another steroid-based lipid is known as cholesterol.
Lab Data
The distance entered is out of the expected range.
Check your calculations and conversion factors.
Verify your distance. Will the gas cloud be closer to the cotton ball with HCI or NH3?
Did you report your data to the correct number of significant figures?
- X
Experimental Set-up
HCI-NH3
NH3-HCI
Longer Tube
Time elapsed (min)
5 (exact)
5 (exact)
Distance between cotton balls (cm)
24.30
24.40
Distance to cloud (cm)
9.70
14.16
Distance traveled by HCI (cm)
9.70
9.80
Distance traveled by NH3 (cm)
14.60
14.50
Diffusion rate of HCI (cm/hr)
116
118
Diffusion rate of NH3 (cm/hr)
175.2
175.2
How to measure distance and calculate rate
For the titration of a divalent metal ion (M2+) with EDTA, the stoichiometry of the reaction is typically:
1:1 (one mole of EDTA per mole of metal ion)
2:1 (two moles of EDTA per mole of metal ion)
1:2 (one mole of EDTA per two moles of metal ion)
None of the above
Please help me solve this reaction.
Chapter 19 Solutions
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