(2 3 C. (a) Construct four models of the compound CH,CHCICHBRCH3. Take two models and hold them with the two CH3 groups away from you. Now arrange the CI on C-2 and the Br on C-3 so that both groups are on your right on one model and both are on your left on the other model. Test to see if these models are superimposable or are enantiomers (mirror image isomers). Draw projection formulas for these models. If they are the same, only one structure needs to be drawn. If they are enantiomers, draw both structures as mirror image isomers. (b) Take the other two models and arrange them as follows: with the two CH3 groups away from you place the Cl on the right of C-2 and the Br on the left of C-3 in one model, and the Cl on the left of C-2 and the Br on the right of C-3 on the other model. Test to see if these two models are superimposable or enantiomers. Draw their pro- jection formulas.

(2 3 C. (a) Construct four models of the compound CH,CHCICHBRCH3. Take two models and hold them with the two CH3 groups away from you. Now arrange the CI on C-2 and the Br on C-3 so that both groups are on your right on one model and both are on your left on the other model. Test to see if these models are superimposable or are enantiomers (mirror image isomers). Draw projection formulas for these models. If they are the same, only one structure needs to be drawn. If they are enantiomers, draw both structures as mirror image isomers. (b) Take the other two models and arrange them as follows: with the two CH3 groups away from you place the Cl on the right of C-2 and the Br on the left of C-3 in one model, and the Cl on the left of C-2 and the Br on the right of C-3 on the other model. Test to see if these two models are superimposable or enantiomers. Draw their pro- jection formulas.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Please solve parts d and e!
4. Select the correct definition for 1 and 2. 1 Br 2 -Br a) b) c) d) They are cis and trans stereoisomers They are enantiomers They are two conformers of the same molecule They are structural (constitutional) isomers
Check the box under each structure in the table that is an enantiomer of the molecule shown below. If none of them are, check the none of the above box under the table.
Please don't provide handwriting solution
Solve sub-part D,E, and F
please disregard the CH2 it is actually a CH3
5) For the molecule shown below, draw the indicated stereoisomers in the boxes. a) Draw a meso stereoisomer b) Draw a chiral stereoisomer H₂N Bri Br NH2 c) Circle the chiral centers in the original molecule
ITEM #5 (Everyone should look at this question). Consider the two Fischer projections shown at right. They CH CH are NOT of the same molecule. H- -HO- HO In a short paragraph, explain why the molecules shown are NOT the same. OH но- H. HO. но In your explanation, describe how the groups of a Fischer projection are positioned in the ACTUAL molecule (Are the molecules flat in real life, or three-dimensional in real life? If three-dimensional, where exactly are the Hs and OHs positioned when one interprets these projections?) H- HO но H- CH,OH ČH;OH Also in your explanation, describe why the second molecule is not simply the first molecule flipped over (like a pancake).
A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into gaseous products. The cylinder has a piston that moves in or out, as necessary, to keep a constant pressure on the mixture of 1 atm. The cylinder is also submerged in a large insulated water bath. (See sketch at right.) The temperature of the water bath is monitored, and it is determined from this data that 160. kJ of heat flows into the system during the reaction. The position of the piston is also monitored, and it is determined from this data that the piston does 204. kJ of work on the system during the reaction. Is the reaction exothermic or endothermic? Does the temperature of the water bath go up or down? Does the piston move in or out? Does the reaction absorb or release energy? How much energy does the reaction absorb or release? Be sure your answer has the correct number of significant digits. exothermic endothermic Ⓒup down neither in Ⓒout neither absorb Orelease neither KJ 10 X 1…
2. H,N но PE PC In order to synthesize PC from PE, PE is reacted with three S-adenosylmethionine (SAM) molecules, producing three S-adenosylhomoserines (SAH). Draw the chemical reactions leading from PE to PC, including the important intermediates. Use the arrow formalism. Feel free to abbreviate certain groups with R to avoid excessive drawing, but make sure to draw the full substrates and products with all atoms at least once. H2N H2N N- он он N' NH2 NH2 KH Нон он OH OH S-adenosylmethioning S-adenosylhomoserine