Experiment 2: H₂N SYNTHESIS OF A PROTECTED AMINO ACID OH +gbla OH Learning outcomes: 1. Solubility of compounds in different environment 2. Track product through extraction in separatory funnel 3. TLC Background Protection of one of the functional groups of an amino acid, allows for selective reactivity in coupling reactions (SEE LECTURE NOTES). Pre-practical "MUST DO" to be included in your lab-book: 1. Calculate MW of all reagents, moles and theoretical yield 2. Reaction mechanism 3. What is the role of NaOH? 4. An R+ is given for the product, how will it change if the eluent mixture was more polar?

Experiment 2: H₂N SYNTHESIS OF A PROTECTED AMINO ACID OH +gbla OH Learning outcomes: 1. Solubility of compounds in different environment 2. Track product through extraction in separatory funnel 3. TLC Background Protection of one of the functional groups of an amino acid, allows for selective reactivity in coupling reactions (SEE LECTURE NOTES). Pre-practical "MUST DO" to be included in your lab-book: 1. Calculate MW of all reagents, moles and theoretical yield 2. Reaction mechanism 3. What is the role of NaOH? 4. An R+ is given for the product, how will it change if the eluent mixture was more polar?

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 answer in text form and in proper format answer with must explanation , calculation for each part and steps clearly
[Review Topics] [References] Draw a structural formula for the major ionic form of the amino acid shown below when in aqueous solution at pH 1.5. . O H₂NCH₂COH 0- You do not have to consider stereochemistry. You do not have to explicitly draw Hatoms. Do not include lone pairs in your answer. They will not be considered in the grading. VI/@ 81 ///// 262 As 000. [F
This is an ungraded practice exam in which he gives us the answers but I would still like to know the reasoning behind
Shift Ctrl Tab Caps Esc c) d) https://session.masteringchemistry.com/myct/mastering Type here to search 6. b) CH3 5. 75 Circle each amino functional group. Amines are weak bases. CH H₂N-CH-COOH 2-aminopropanoic acid (alanine - an amino acid) CH₂- add NaOH to fraction 1 and filter add NaOH to fraction 1 and filter CH 4-toluidine 4-toluic acid 4-toluidine H -NH₂ -COOH CH- a) Which is likely to be on top, the aqueous or the organic layer*? *hint: which is more dense? -NH₂ + add NaOH 2 to fraction 2 to fraction and filter The organic base 4-toluidine is prepared by reduction of 4-nitrotoluene (which is not basic). Both solids dissolve readily in dichloromethane (density = 1.316 g/mL), but poorly in water. A student trying to prepare 4-toluidine found that the reaction had not gone to completion. She then used solvent extraction to separate the 4-toluidine from unreacted 4-nitrotoluene as illustrated. Complete the balanced ionic equation for the reaction in step 2. add NaOH to fraction 2…
Can you please answer sub questions A and B and show all of the steps please and thank you
true or false, please sir solve first 3 parts
Pls solve this question correctly instantly in 5 min i will give u 3 like for sure
Hoping for solutions since I’m having a hard time with this. Pls skip if unsure or not willing to answer the subitems (these are all connected for one item). Thanks in advanced. Kr‎iel just dis‎covered a new p‎rotein, Kriel‎ase an‎d for it no‎t to unf‎old and lo‎se its fu‎nction, he realiz‎ed that the p‎rotein needs to be consta‎ntly imm‎ersed in a pH = 6.50 solut‎ion. He is the‎refore inte‎rested in pr‎eparing a 50 mL 0.08 M pH = 4.50 buff‎er to con‎tain the protein. He lis‎ted down the pu‎re acid‎s availabl‎e to his dis‎posal, and also looke‎d for their acid dissociation constant (Ka) values. Acid Name Ka1 Ka2 Ka3 Nitrous Acid (HNO2) 4.00 x 10-4 N/A N/A Acetic Acid (CH3COOH) 1.76 x 10-5 N/A N/A Ascorbic Acid (HAsc) 7.90 x 10-5 1.60 x 10-12 N/A Phosphoric Acid (H3PO4) 7.52 x 10-3 6.23 x 10-8 4.28 x 10-13 A. Iden‎tify which w‎eak acid sys‎tem is best to use in p‎reparing the buffer? Why? B. Ide‎ntify the spe‎cies which will ma‎ke up the bu‎ffer system?…
***not graded, just a practice problem I do not understand. Thank you so much!
balance the following equations: (Use the lowest possible whole number coefficients for all reactions.) a b LiClO3 (s)→ LiCl(s) + O2(g) LICIO3(s) -> LiCl(s) + C4H8 (g) + O2(g) → CO2(g) + H₂O(l) C4H8 (g) + 0₂ (g) CO₂(g) + - nitrogen + nitrogen + oxygen → dinitrogen pentoxide O2(g) oxygen - BeCl2 (s) + H₂O(g) → BeO(s) + HCl(g) BeCl₂ (s) + dinitrogen pentoxide H₂O(g) ->> BeO(s) + - BaH₂ (s) + H₂O(l) → Ba(OH)2 (s) + H₂(g) BaH₂ (s) + H₂O(l) H₂O(l) HCl(g) Ba(OH)2 (s) + H₂(g)
*(f) 1. xs 1. i-PrMgBr - abbreviation 6 2. H20 2. H20 Isopropyl 4-oxo- pentanoate Excess isoprору! magnesium bromide followed by water
1 Submit Q10. !! Unanswered Q10. An average amino acid is about 110 Da (Daltons). If there are 1273 amino acids in the SARS-CoV-2 spike protein, what do you expect the mass of spike to be? How does that compare to the expected mass of about 200 KDa? more than expected by about 90 Da Less than expected by about 90 Da B. more than expected by by about 60 KDa less than expected by about 60 KDa Submit odf 0/11 answered