Please write the structures of alginic acid and acrylic acid(just show the repeating unit structure). Please explain what is the behaviour of alginic acid and acrylic acid hydrogel, whenyou increase the Ph? (increasing beyound 7
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Please write the structures of alginic acid and acrylic acid(just show the repeating unit structure). Please explain what is the behaviour of alginic acid and acrylic acid hydrogel, whenyou increase the Ph? (increasing beyound 7)
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- Consider the following dipeptides: PC HE TG IR FL How many of the dipeptides in this group that would stick to an cation exchange column at pH %3D 8? Please give me the whole number as the answer, 0, 1, 2 etcCalculate the concentration of Y4-ion in 0.0100 M EDTA solution at pH 6. for pH 6, α4 = 2,2 x 10-5What are the predominant Intermolecular forces (Dipole-dipole, London dispersion, Hydrogen bonding etc) for the following molecules: TeCl6 AsBr5 XeF4 SiCl4
- If an aqueous solution has a hydroxyl ion concentration of 1 × 10-6 M, what is the concentration of hydrogen ion ([H+]) ? [H+] = 1.0 x10-5 MA 10.00-mL aliquot of unknown oxalic acid solution required 15.44 mL of 0.011 17 M KMnO4 solution to reach the purple end point. A blank titration of 10 mL of similar solution containing no oxalic acid required 0.04 mL to exhibit detectable color. Find the concentration of oxalic acid in the unknown.Glycine hydrochloride (Cl− H3N+CH2COOH) is a diprotic acid that contains a carboxylic acid group and an ammonium group and is therefore called an amino acid. It is often used in biochemical buffers. Solve, In analogy with Figure , sketch the titration curve of this diprotic acid.
- You have been observing an insect that defends itself from enemies by secreting a caustic liquid. Analysis of the liquid shows it to have a total concentration of formate plus formic acid (K₁ = 1.8 x 10-4) of 1.45 M. Further analysis reveals that the concentration of formate ion is 0.015 M. What is the pH of the secretion? pH =What is the pH of a 0.25 M solution of acetic acid, Ka = 1.8 x 105. What percentage of the acid is dissociated?What is the pH of an aqueous solution with {H3O+} = 6x10-12
- Psilocybin is a natural product of psychotropic "magic" mushrooms and has the Following structure: HO HO O=0 Psilocybin The pK a Of the first phosphate oxygen is 1.3, the pK. Of the second phosphate oxygen is 6.2, And the pKa Of the tertiary amine is 10.4. What is the average charge of psilocybin when Dissolved in your carbonic acid buffer of pH=6?A glucosamine solution of unknown concentration was diluted as follows: 1 mL of the solution was diluted to 5.0 mL. A 0.3 mL aliquot of this solution was diluted with 0.7 mL of water; the absorbance of this was measured and found to be 0.440 (uncorrected, must subtract blank). What is the concentration of the original undiluted glucosamine hydrochloride solution in µmol/mL? Given: Corrected absorbance = 0.395 y= 1.165x+0.055 Standard equationH2SO4 is 0,5 mol What is the pH of this solution? What is the pH of 35 ml buffer solution which is 0,3 M in CH3COOH and 0,5 M in CH3COONA ? 7. The pH of buffer solution is 7.0. What is the hydronium-ion conor