A solution of tyrosine is made by dissolving 0.005 mole of tyrosine in 1.0 L of 0. M NAOH solution. Draw the structure of the principal chemical form of tyrosine found in this solution at equilibrium given the data below. NH2 pKa (CO2H) = 2.41 pka (NH2) = 8.67 pKa (OH) = 11.01 CHCH2 HO- CO2H

Q: O Calculate the ratio of sodium benzoate to benzoic acid so that the pH of the solution =4.7 ? If…

A: Given: pKa of benzoic acid = 4.1 pH of the solution = 4.7 Solution contains weak benzoic acid and…

Q: Calculate the pH and the percentage of ionization of 30 grams of sodium glycolate (C2H3O3Na) in 20…

A: Sodium glycolate(C2H3O3Na) is a conjugate base of glycolic acid(HC2H3O3). The Ka of glycolic…

Q: . Which of the following acid/ conjugate base pairs would function best as a buffer at physiological…

A: Physiological pH is 7.40 and buffer range is ( pH - 1 ) to ( pH + 1 ) that means 6.40 to 8.40 and…

Q: Calculate the ratio of the concentrations of acetate and acetic acid required in a buffer system of…

A: Given -       pH = 5.80     and       pka = 4.70   Find -         Calculate the ratio of the…

Q: What is the pKb of the conjugate base of a weak acid that has a pKa equal to 3.52? (temperature is…

A: Given that : pKa = 3.52  pKb = ?

Q: Given that the solubility reaction for calcium phosphate is…

A: Hare product PO43-  is a conjugate base so addition of acid give a soluble salt . according to La…

Q: Calculate the % CO2 for the following compounds: Na2CO3, KHCO3, K2CO3, NaHCO3

A: For sodium carbonate:

Q: С. F3C HO, pka, = 3.9 %3! %3D

A:

Q: Chemistry How do I calculate the %ionisation at pH of a drug (compound code;UQPC 22-606-Q) the “Q”…

A: percent ionization = [H+]/[unionized form ] ×100

Q: Part II. Write the hydrolytic reaction corresponding to the Ka2 of the following acids. 3. Н.SeOз 4.…

A: Polyprotic acid is the acid that consists of two or more acidic hydrogen atoms. On hydrolysis,…

Q: 2NH4Cl + H2CO3 → CO(NH2)2 + 2HCl + 2H2O a) The maximum daily dose of NH4Cl for adults is 12 g.…

A:

Q: In which of the following aqueous solutions would you expect PbCl2 to have the lowest solubility? O…

A: The solubility of a partially soluble salt decreases due to the common Ion effect. It can be…

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: Calculate the pH for a mixture of one mole of benzoic acid and one mole of sodium benzoate. The pKa…

A: Given: pKa of benzoic acid = 4.2 Mole of benzoic acid = 1 Mole of sodium benzoate = 1

Q: Write a net ionic equation to show that pyridine, C,H,N, behaves as a Bronsted-Lowry base in water.

A: Any chemical species that are capable of donating H+ ions to another molecule are called…

Q: 9. Phosphotyrosine (shown below) has four ionizable functional groups (pK1 = 2.5, pKR1 = 2.1, pKr2 =…

A: a) Given is the phosphotyrosine molecule, with four ionizable groups.

Q: M anserine buffered solution, pH 7.20. Answer the below questions: Volume of stock solution needed =…

A: Given 0.200 M solution of anserine at its isoelectric point  0.200 M HCl, 0.200 M NaOH and distilled…

Q: Proteins are complex biological molecules made of smaller molecules called amino acids. Five common…

A:

Q: calculate the ph and poh of a solution that is 0.18 M in HC2H3O2 and .43 M in Mg(C2A3O2)2 where the…

A: pH of a solution is defined as the negative logarithm of concentration of H3O+ ion. Again pH + pOH =…

Q: The structure for the amino acid cystine is provided:  pka for (CO2H)= 1.8 pka for (NH2)= 10.75…

A: A group ionizes into proton and negative charge if pH of the medium is greater than pKa. Neutral…

Q: Write the equilibrium constant expression for the formation of thiocyanoiron (III) from iron (III)…

A: The formation reaction of thiocyanoiron (III) is given as, => Fe3+ (aq) + SCN- (aq)…

Q: 3. Calculate the pKa value of hydroxylammonium cation (HO-H3N*)(protonated on nitrogen hydroxyl…

A:

Q: Neutralization of phosphate . Given that phosphoricacid (H3PO4) can give up three protons with…

A: Titration curve for H3PO4 versus NaOH

Q: 3. Show the reaction between aqueous hydrochloric acid and alanine. Define the equilibrium constant.

A: Amino acids have the following general formula: Different amino acids have different R group,…

Q: Draw the structure of the most abundant form of cysteine in solutions whose pH values are 1, 4, 6,…

A: The molecules found inside human body which have carboxylic and amine group containing monomer units…

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: 6. The pKa of lactic acid (CH3CH(OH)COOH) at 298 K is 3.85 write the equilibrium expression for this…

A: Lactic acid is a weak acid. The weak acid dissociates partially in the aqueous solution to give…

Q: What is the conjugate acid of HPO2²- ? Express your answer as a chemical formula.

A: • We need to write the conjugate acid of HPO22-

Q: Since the Coomassie Brilliant Blue G-250 is a highly (basic, acidic) dye, it cannot be used for…

A: The structure of Coomassie brilliant blue G-250 is:

Q: What is the pH of a 0.20 M solution of sodium acetate? The Ka for acetic acid is 1.8 x 10⁻⁵?

A:

Q: Molecule A is C6H9O2F and an aqueous solution of 0.0130 M of molecule A has a pH of 1.0 .  Calculate…

A:

Q: Calculate the pH of a 0.20 M HA solution, given the pKa of HA is 2.22.

A:

Q: From the reaction CaCO3+CO2+H2O= Ca2+ + 2HCO3-   A.) Show how it affects the chemistry of water,…

A: CaCO3 is a salt of a weak acid, H2CO3, and strong base, Ca(OH)2, therefor the solution of CaCO3 is…

Q: Calculate the pH of a 0.91 M solution of morpholine at 25 °C. Ro

A:

Q: Acetic acid was dissolved in water to a concentration of 0.10 mol.L-. The pKa of acetic acid is 4.8.…

A: a.) Acetic acid is an acid , so it would donate protons . For this we would write a chemical…

Q: H,N. „CH, H,N. HO, но Phenylalanine (1) Tyrosine (2) H,C. HN „CH, H,C CH, H,C HO Triethylamine (4)…

A:

Q: A0.300 M solution of nitrous acid (HNO2) had a pH of 2.07. What is the Ka value for nitrous acid. 1.…

A: The molarity of a nitrous acid solution is = 0.300 M The pH of the solution is =2.07 The Ka value of…

Q: Carbonic acid, H2CO3, undergoes the following acid base equilibria: H2CO3,=H*(aq) + HCO;¯(aq) =…

A: The relation between pKa and pH can be known as, ph = pKa + logsaltacid

Q: Q.6.Calculate the pH of a 0.36 M CH3COONA solution given the pKa of acetic acid is 4.745.

A: We know that, pH = 7 + (1/2)pKa + (1/2)logC  Given,  pKa of acetic acid = 4.745 Concentration, c =…

Q: Determine the Ksp of J3(PO4)2 if its molar solubility in H2O is 7.78 x 10–10 M

A: Many ionic compounds are completely soluble. But in actual case, even insoluble compounds will…

Q: Phosphoric acid (H₃PO₄) is a triprotic acid with pKa values of 2.12, 7.21, and 12.32. It is a useful…

A: "Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: For an acid HA with a pKa of 5.2, what is the ratio of the concentration of the conjugate base to…

A: The dissociation reaction of acid HA can be written as  => HA ------> H+ + A-  Conjugate base…

Q: For an acid with a pKa of 5.00, what is the pKb of its conjugate base?

A:

Q: 38. Determine the pH of 0.42 M for formic acid, HCOOH solution. The value of pka for HCOOH is 3.75.…

A: We have to calculate the pH of Solution.

Q: 4. If, when acetic acid is dissolved in water, the [H3O*]= 1.2 x 103, what is the [C2H;O2]? If the…

A:

Q: What is the reducing agent in the following reaction?2 Br-1aq2 + H2O21aq2 + 2 H+1aq2 ¡ Br21aq2 + 2…

A: The species which lose electrons undergo oxidation. The species which accepts electrons undergo…

Q: Calculate the concentration of free Zn+2 in 0.08 M ZnY2- solution at pH = 9 . (Kf = 3.2 x 1016 , α4…

A: Based on the number of donating sites, the ligands are named as mono, di, tridentate ligands, and so…

Applications of Molecular Spectroscopy

When light sources pass through the diffraction grating then light splits into different wavelengths. The light source produces two types of patterns that are shown as destructive and non-destructive. The light source is in the form of quanta that is quantitation.