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A: % of MgCO3 = (mass of MgCO3 / mass of sample )*100
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A: The configuration are as follows:
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Q: K =
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- (a) For each structure, identify all of the possible hydrogen bond donors (HBDS) and hydrogen bond acceptors (HBAS). Remember, some functional groups may be able to act as HBDS and HBAS. HO MeO Capsaicin Citalopram HO HO HO HO- Prostaglandin D2 Atropine (b) Eukaryotic cell membranes function as a hydrophobic barrier around the cell and prevent the passage of polar or charged molecules. Briefly explain how cell membranes work and use a simple diagram to aid your explanation. Refer specifically to hydrophobic and hydrophilic components in their structure.But-2-yne has a pK.~ 38. Evaluate the ability of bases to deprotonate the provided acid.To make ethyl acetate, what substrate and reagents and solvent are needed? Example: acetic aicd + ethanol + H2SO4
- What is the purpose of adding Na2CO3 into the collected tea extract beforeextraction with CH2Cl2?(a) Vanillic acid is a phenolic compound found in vanilla and many other plant extracts. It is a flavouring and scent agent that produces a pleasant, creamy odour. Show the biosynthesis route for the formation vannillic acid from phenylalanine (Shikimate pathway). HO. NH2 Phenylalanine Vanillic acidII) a-Draw the proper Haworth form and most stable chair conformation for ß-anomer of L-mannopyranose. b- Write the systematic name of this compound III) What are the principal organic products when L-Gulose is treated under the following conditions? Mechanisms are not necessary. a.) Ac₂O, H₂O* b.) MeOH, H3O* c.) Br₂/H₂O d.) 1.) NaCN 2.) H₂/Pd 3.) H₂O e.) 1.) NH₂OH 2.) Ac₂O/Py 3.) CH3ONa f.) NaBH4/H₂O g.) Tollen's reagent HO- HO H H O H- HO- -H -H -OH -OH CH₂OH I D-Mannose HO- -H HO -H -OH -H -OH L-Gulose