Draw the condensed structure for leucine

Assignment Help Chemistry
Reference no: EM13176627

Leucine is an essential amino acid with the systematic name 2-amino-3-methylpentanoic acid. It has pKa1=2.36 and pKa2=9.60
1. Draw the condensed structure for leucine, and label all chirality centers with an asterisk
2. Draw a Fischer projection of L-leucine and label the chirality center(s) as R or S.
3. What is the pI of leucine?
4. Draw the structure of the predominant form of leucine at pH=1.50
5. Leucine is described as an essential amino acid. What does this mean?
6. Show how leucine might be synthesized using the Knowles enantioselective synthesis.
7. Show the alkyl halide you would use to prepare leucine by the amidomalonate method

Reference no: EM13176627

Questions Cloud

Is uranine a hazardous chemical in thailand : Is there a list of hazardous or safe chemicals for Thailand? Where can I find it?
Which prochiral of naphthalene is hydroxylated in process : Enzymatic oxidation of naphthalene by bacteria proceeds of intermediate cis-diol. which prochiral face of naphthalene is hydroxylated in this process?
Determine the intermolecular distances for the two molecules : Determine the intermolecular distances for the two molecules and account for their similarity or difference.
What is the ratio of glucose concentration outside : The entry of Na+ provides a free-energy input of 10.8 kJ/mol under typical cellular conditions (external [Na+] = 143 mM, internal [Na+] =14 mM and a membrane potential = -50 mV). What is the ratio of glucose concentration outside and inside cells?
Draw the condensed structure for leucine : Leucine is an essential amino acid with the systematic name 2-amino-3-methylpentanoic acid. It has pKa1=2.36 and pKa2=9.60
Determine the amount of ascorbic acid : determine the amount of ascorbic acid? Does the volume of ascorbic acid solution added before titration influence how much iodine solution will be needed?
What is the specific heat of the sample : A sample weighing 25g starts at 99 degrees celsius. It is put in a calorimeter containing 100g water. The water temperature begins at 20 degrees and both water and sample reach equilibrium at 32 degrees. What is the specific heat of the sample?
What is the magnitude of the change in ph : What is the magnitude of the change in pH when 0.005 moles of HCl is added to 0.100 L of a buffer solution that is 0.100 M in CH3CO2H and 0.100 M NaCH3CO2?
What are the other side products present : What are the other side products present in this biocatytic reaction?

Reviews

Write a Review

Chemistry Questions & Answers

  How much energy is released

How much energy is released during the complete combustion of 372 grams of cyclohexane ?

  Explain what is the ph of the h3po3 solution

What are the values of [H+], [H2PO3-], and [HPO32-] in a 3.0 M solution of H3PO3? What is the pH of the solution?

  Compute keq for the reaction at temperature

When 0.0200 mol gaseous NH3 and 0.0180 mol gaseous O2 are placed in a 1.00 L container at a certain temperature, the N2 concentration at equilibrium is 2.20Ã-10-3 M. Calculate Keq for the reaction at this temperature.

  Calculate a value for ksp

25.0 cm3 of a saturated solution of Ca(OH)2 required 21.0 cm3 of 0.0500 mol dm-3 HCl for complete neutralisation. Calculate the [OH-(aq)] and the [Ca2+(aq)] in the saturated solution.

  Find how old is the bone of living organism

The half-life of C-14 is 5730 years. A bone sample with 3.6 g of carbon has 32.6 disintegrations per minute. How old is the bone sample in years?

  Calculate the mass in grams of carbon dioxide

Calculate the mass in grams of carbon dioxide that will be produced when 25.0 g of ethanol is burned.

  Determine the rate law for the reaction

Given the initial rate data for the reaction A + B ? C, determine the rate law for the reaction.

  Find out the equilibrium constant for the reaction

Determine the volume of 6.44*10^-2 M adenosine triphosphate (ATP) that is having 1.68 mol of adenosine triphosphate express your answers in (mL)?

  What is the equilibrium concentration of n2o4

If the initial concentration of N2O4 is 0.50 M, and no NO2 is initially present, what is the equilibrium concentration of N2O4? Kc = 0.0059 at 298 K   N2O4 (g) 2NO2 (g)

  Determine the mass of silver found in the ring

let's pretend a certain sterling silver ring has a mass of 31.25g. silver has 93%. determine the mass of silver found in the ring.

  Explain what is the latent heat of vaporization tsat

What is the latent heat of vaporization Tsat in kJ/mol? (Answers are 1366 kW and 28.4 kJ/mol) Please show work for good rating.

  Define monatomic ideal gas by the pathway

Consider a process carried out on 1.00 mol of a monatomic ideal gas by the following pathway from state A to state B. Pathway

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd