Answered: In the space provided, draw the…

In the space provided, draw the structure of valine (val) at each of the following pH values. Valine has a pl of 5.97. a) pH = 4.34 CH3 CH-CH, H2N-C-COOH Valine (Val) b) pH = 5.97 %3D

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter14: Acids And Bases

Section14.6: Molecular Structure And Acid Strength

Problem 14.16CE

See similar textbooks

Related questions

Q: CH2 он Tyrosine Draw the structures of tyrosine as different pH values. Please refer to the lecture…

A: Solution -

Q: Table 1. Smoke point and other physicochemical properties of commercial cooking oil samples. Cooking…

Q: H-0 CH,OH (b) NH, CH, H--0=C (b) 0-H-- (a) CH, CH, CH, CH H-C CH, CH, | (d) (CH.)4–NH, (a) CH, (d)…

A: Hydrophobic Interaction: It is a type of interaction between non-polar molecules (alkyl chains) in…

Q: Acidic drugs tend to ionize in basic medium. Basic drugs tend to be absorbed in basic…

A: 1. Acidic drugs tend to ionize in basic medium. Answer- False Explanation- Acidic drugs are…

Q: As the pH changes in an aqueous solution, Glutamic acid can exist in the neutral (zwitterionic) form…

Q: #9 Classify these amino acids as acidic, basic, neutral polar, or neutral nonpolar. A- Leucine,…

A: Answer Classify these amino acids as acidic, basic neutral polar or neutral non polar

Q: what is the concentration of the unknown protein in nanometers? use the information below! protein…

Q: Consider an amino acid (A) with no ionizable side chains, and call the three species involved in the…

A: Using Hendesen-Hasselbalck equation pH = pKa + log([HA]/[H2A+]) with, [HA] + [H2A+] = 1 mM [HA] = 1…

Q: Na2CO3 (aq) + CaCI2 (aq)

A: Given :- Na2CO3(aq) + CaCl2(aq) → To determine :- Product(s) formed in above reaction

Q: Guanine, as it would appear at physiological pH, is shown below. One of the pKas of guanine, which…

A: The protonated form at N7 is =NH+- The deprotonated form at N7 is =N- pKa of =NH+ is, pKa = 2.4

Q: The structure of the amino acid alanine (CH3CHNH2COOHCH3CHNH2COOH) contains a hydrogen atom, a…

Q: 3. In the space provided, draw the structure of Glycine (Gly) at the following pH value. Glycine has…

A: Answer:- This question is answered by using the simple concept of writing the structure of an amino…

Q: Table 1: Absorbance of Ibuprofen at 221 nm in phosphate buffer (pH 6.8) Concentration of Absorbance…

A: As per Lambert Beer's law, absorbance is directly proportional to concentration of solution.…

Q: Proteins have complex three-dimensional structures. These polymers are held into these specific…

Q: QUESTION 19 Briefly explain why there are + and - charges in the amino acid structures in the table…

Q: β‑Galactosidase (β‑gal) is a hydrolase enzyme that catalyzes the hydrolysis of β‑galactosides into…

A: The molecular mass of β‑galactosidase is 116347.57g/mol.

Q: Calculate the volume of hydrogen at 0°C and 1.00 atmthat is required to convert 500.0 g linoleic…

A: Given mass of linoleic acid is 500.0 g Molar mass of linoleic acid (C18H32O2) = 280.45 g/mole

Q: QI. Shown below is the general structure of alanine. H3C OH NH2 a Without help from unauthorized…

Q: Explain the effect of the pH on the protonation of the functional groups present in ascorbic acid…

A: We know that the functional groups present in ascorbic acid is : (-OH group) hydroxy group, -C=O.…

Q: How many mls of an aminophyllin solution (500mg/20ml) is needed to prepare 425mg aminophyllin in…

Q: CH3 H,C Он NH,

A: An amino acid is represented by the formula RCH(NH2)COOH. Based on this the R group in the given…

Q: The amino acid serine, NH2CH(CH2OH)COOH has the following pKa values: pKa1 = 2.19 pKa1 = 9.21. What…

A: 1) The correct option is - (c) Solution - According to the question Given - Amino acid are…

Q: Modify the structures (if necessary) to show the predominant form of the amino acid tyrosine at each…

A: Tyrosine has a total of 3 acidic groups which are: -COOH (pKa = 2.20), -NH3+ (pKa = 9.21), and -OH,…

Q: Calculate AGrxn

Q: This question is concerning the amino acid methionine. a. Draw methionine in a way such that every…

A: There are two pH sensitive groups in the given molecule ethanol which are -NH2 and -COOH and the…

Q: + O2 (g) → 2 NO2(g) Calculate AGrxn at: a) 25 °C

A: The question is based on the calculation of Gibbs free energy change. we have been provided a…

Q: Given that HO(CH2)2COOH has a pKa = 4.5 and HO(CH2)2 NH3 has a pKa = 9.5, answer the following: %3D…

A: Solubility of a compound is based on the principle of 'like dissolves like.' Water is a polar…

Q: In the chart below, rank the 3 chemicals (1→3) according to the various + headings, where NP =…

Q: 7. The structure of the amino acid alanine is C- COOH H Give the structural formula of the species…

A: The chemical species that contain an amino group and a carboxylic acid group on the same carbon atom…

Q: Erythromycin is a weak base with a pka of= 5.2 What will be the ionisation state of the drug in…

A: Actually Erythromycin is a weak base with pKb = 5.2 Hence pKa = 14 - pKb = 14 - 5.2 = 8.8 The…

Q: If you want to dissolve an amino acid based on its polarity. you need to determine the factor that…

A: The solubility of an amino acid in water depends on the nature of side chains.

Q: 45- NO2 03 40. 35- 30- 25- 20- 15- 10- 5 0- Concentration (ppbv) ||

A: By studying the graph clearly we can infer following details, between the date 14march and 16march.

Q: Draw the sequential transition of glutamic acid as it passes from its fully protonated form to its…

A: The biomolecules in which carbon atom is bonded to carboxylic group, amine group, alkyl group and…

Q: 2. In the space provided, draw the structure of isoleucine at each of the following pH values.…

A: •Given ISOLEUCINE has pI of 6.02 ,here pI means ISOELCTRIC POINT. •So isoelectric point of…

Q: 1. Write the chemical reaction of amino acid when it can act as amphoteric molecule. + HO- H₂N COOH…

A: Amino acid act as amphoteric molecule as it contain both acidic carboxyl group and basic amino…

Q: Draw all the structures of crystal violet as pH is increased from 0-14

A: Crystal Violet is triarylmethane dye which is violet in color. It is also known as Gentian Violet.…

Q: In the case plantation crops, it is highly recommended to apply lime right after the application of…

A: It is false explanation.

Q: All amino acids have two ionizable functional groups: an a-amino group (average pK, of 9.4) and an…

A: The deprotonation of an acidic group takes place at a pH higher than the pKa value. Hence the…

Q: During the hydrolysis of proteins, some amino acids, such as tryptophan, do not survive the reaction…

A: The common group which is present in asparagine and glutamine is an amide group. When these two…

Q: 1 Estrogen is found in many pharmaceuticals and in biologically enhanced foods. Estrogen: C18H24O2 +…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: For the amino acid alanine, the major species in solution at pH 7 is the zwitterionic form, which…

A: Here, we have to estimate the ratio of the concentration of the neutral amino acid species to the…

Q: Select the correct statements about the isoelectric point of a protein. ( all that may applied ) -…

A: Isoelectric point is the pH at which the substance is electrically neutral.

Q: (a) Describe in detail how you will determine the primary structure of protein. You have been given…

A: (a) Primary structure of protein The primary structure of a protein is generally referred to the…

Q: at a pH value of 2, the amino and carboxyl groups in an amino acid will exist as

Q: Q1. The pK, values of Glutamic acid are 2.2, 4.3 and 9.7. H2N но. HO (a) Calculate the pH of a…

A: The question is based on the concept of equilibrium. we have to determine the pH at which 80% of the…

Q: Describe three effects of pH on ionization of a weak acid or base that impact biological stability…

A: The three effects of pH on ionization of a weak acid or base that impact biological stability of a…

Q: For the amino acid glutamate, what fraction of the side-chain (R-group) will be ionized at pH = 3.5?…

Q: At a pH of 7, what charged groups are present in leucine? O a. NH2+ O b. CO2- O c. NH3+ O d. NH3+…

A: pI is the isoelectric point which is the pH at which zwitter ion formation takes place. This means…

Concept explainers

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.

Question

In the space provided, draw the structure of valine (val) at each of the following pH values.
Valine has a pl of 5.97.
a) pH = 4.34
CH3
CH-CH,
H2N-C-COOH
Valine (Val)
b) pH = 5.97
%3D

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

Consider an amino acid (A) with no ionizable side chains, and call the three species involved in the acid/base equilibria H2A+, HA, and A- (see scheme below). Assume that pKa(1) = 2.0 and that pKa(2) = 9.0. Suppose that the total concentration of the amino acid is 1.0 mM. Report to two significant digits. pH [H2A+] (mM) [HA] (mM) [A-] (mM) 10.0 11.0 12.0
Examine the structure of the following amino acid and answer the questions below: Name the amino acid. Does it exhibit optical activity? Why? Describe the acid-base properties of amino acids. What is zwitterion?
What is the net charge on the protein shown below (without pH considerations) at pH 12? a. -2 b. -1 c. +1 d. 0 e. +3 f. +2
There are two pH values in which Glutamic acid will have an a complete net charge of 2.17? what is the lowest PH1 and highest of pH2 round your amswers to the nearest 0.1 no orher information was provided
What type of amino acid has a side chain that contains –COO–? polar neutral nonpolar acidic basic conjugate basic
As the pH changes in an aqueous solution, Glutamic acid can exist in the neutral (zwitterionic) form and three different charged forms (with charge -2, -1 and +1). Draw these four forms of the molecule.
The pKaa of the conjugate acid of guanidine is 13.6, making it one of the strongest neutral organic bases. Offer an explanation.
#9 Classify these amino acids as acidic, basic, neutral polar, or neutral nonpolar. A- Leucine, alanine, arginine, glutamine, asparagine B- phenylalanine, lysin, methionine, proline, serine
What is the actual chemical component for an anthocyanin (assume a cyanidin structure), and a carotenoid (assume a lutein structure), and indicate what is the common feature of these indicators that could act as an acid or base. (While the structures are complicated molecules, compare with acetic acid, CH3COOH, a weak acid).
what is the concentration of the unknown protein in nanometers? use the information below! protein length: 82 amino acids molecular mass of amino acid: 118g/mol concentration of protein in sample (unknown protein): 1.2mg/ml
Select the correct statements about the isoelectric point of a protein. ( all that may applied ) - the charge on the protein will be neutral. - the pH of the solution will always be greater than 7. - the protein molecules will dissolve into solution. - the pH of the solution will ways be less than 7. - the protein molecules coagulate and precipitate from solution - the number of positive charges on the protein will be equal to the number of negative charges. - the pH of the solution will always be exactly 7.
The property of water solutions to conduct electric current is possible for all of the 20 standard amino acids. True or False?