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Concept explainers
(a)
Interpretation: Each double bond in lejimalide B is to be labeled as
Concept introduction: Stereochemistry is defined as the arrangement of molecule in three dimensional and its impact on
The use of prefix
(b)
Interpretation: Each tetrahedral stereogenic center in the given drug is to be labeled as
Concept introduction: Rules for assigning R and S configuration are as follows:
1. The groups are prioritized on the basis of their
2. If the atoms that are attached to the chiral centre are similar to each other, then the priority is given on the basis of the next atom attached.
3. The molecule is oriented in such a manner that the lowest priority group comes at the dashed wedge.
4. If the first three high priority groups are present in a clockwise manner then the molecule is assigned R configuration but if these are present in an anticlockwise manner then the molecule is assigned with S configuration.
(c)
Interpretation: The number of stereoisomers possible for lejimalide B is to be predicted.
Concept introduction: A compound exhibits number of stereoisomers when it contains more than one stereogenic centers. The maximum number of stereoisomers a compound with n number of stereogenic centers can show is
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Chapter 10 Solutions
Organic Chemistry
- 18. Arrange the following carbocations in order of decreasing stability. 1 2 A 3124 B 4213 C 2431 D 1234 E 2134 SPL 3 4arrow_forwardAcetic acid is added to DI water at an initial concentration of 10 -6 M (Ka=1.8x10-5) A. Using the "ICE" Method, what would the pH be at equilibrium? State assumptions and show your work. B. Using the simultaneous equations method, what would the pH be at equilibrium? Show your workarrow_forward1. Show that the change in entropy for a fixed amount of ideal gas held at a constant temperature undergoing a volume change is given by the simple equation AS = NkB In Hint: Start with the equation M dS = du + (Œ) dv - Ž (#) an, dU du+av-dN; j=1 Why doesn't the equation for the entropy of an ideal gas depend on the strength of the intermolecular forces for the gas?arrow_forward
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- 2. Use Hess's law to calculate the AH (in kJ) for: rxn CIF(g) + F2(g) → CIF 3 (1) using the following information: 2CIF(g) + O2(g) → Cl₂O(g) + OF 2(g) AH = 167.5 kJ ΔΗ 2F2 (g) + O2(g) → 2 OF 2(g) 2C1F3 (1) + 202(g) → Cl₂O(g) + 3 OF 2(g) о = = -43.5 kJ AH = 394.1kJarrow_forwardci Draw the major product(s) of the following reactions: (3 pts) CH3 HNO3/H2SO4 HNO3/ H2SO4 OCH3 (1 pts)arrow_forwardProvide the product for the reactionarrow_forward
- What is the net ionic equation for the reaction between tin(IV) sulfide and nitric acid?arrow_forwardThe combustion of 28.8 g of NH3 consumes exactly _____ g of O2. 4 NH3 + 7 O2 ----> 4 NO2 + 6 H2Oarrow_forwardWhat is the molecular formula of the bond-line structure shown below OH HO ○ C14H12O2 ○ C16H14O2 ○ C16H12O2 O C14H14O2arrow_forward
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