why does alkaline phosphatase optimal at pH of 8 rather than pH 7

Q: The measured pH of a 0.100 M solution of triethylamine (NEt3) is 11.68. What pKa of triethylammonium…

A: Given,molarity of triethylamine ( NEt3 ) = 0.100 MpH of the solution = 11.68

Q: I  need help understanding why the ratio of Acetate:Acetic acid = 3.5:1 and why the total amount…

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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: What is the pH of a solution containing 1.316 mol L-1 of a weak acid with pKA = 7.47 and 0.521 mol…

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Q: In my slide, there is a table summarizing the pKa values for different acids. (1) when ranking the…

A: (1)   The pKa quantifies how strongly a positive charge is retained by something like a Bronsted…

Q: A lab technologist needs to generate a 160mL phosphate buffer at 0.1M and pH6.8. The technologist…

A: Given, desired buffer pH = 6.8 Buffer volume = 160 mL The substances provided are 0.2 M HPO42- and…

Q: Why does the pH of the cooking medium influence the texture of cooked fruits and vegetables? What…

A: The pH of the cooking medium can influence the texture of cooked fruits and vegetables due to the…

Q: A stock solution contains 0.058 mM glucose. To 218 uL of this stock solution was added: 607 uL…

A: The number of moles of reaction always remains constant. Variables such as volume and concentration…

Q: Pkas for three titratable groups of histidine are 1.80, 6.04, and 9.33. What is the ratio of…

A: Given data:Pkas for three titratable groups of histidine are 1.80, 6.04, and 9.33To determine:The…

Q: What is the expression for the solubility product constant, Ksp, for Ag2CO3? O Ksp=[Ag+1²[CO3²-]…

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Q: Consider the reaction of pyruvate with NADH and the standard reduction potentials, ?′°,E′°, of…

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

A: Titration curve for H3PO4 versus NaOH

Q: What is the pH of a solution containing 0.692 mol L-1 of a weak acid with pKA 3.8 and 0.89 mol L-1…

A: Given:Concentration of weak acid 1, C1= 0.692 MpKa for weak acid 1 = 3.8As pKa = - log ( Ka ) Ka1 =…

Q: explain anharmonicity.

A: Anharmonicity:

Q: What relative concentration do you want to select for determining λmax​? a. High end of the…

A: Beer Lambert law: Absorbance is directly proportional to concentration, molar absorptivity and path…

Q: If a solution of dissolved acid has pH = 2.5 and the pka for the acid chemical is K 4.3 and you…

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Q: The pK, values for the amino acid leucine (R = CH2CH(CH3)2) are pKa1 = 2.36 and pKa2 = 9.60. Fill in…

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Q: Calculate the ratio of phosphate ions [HPO4]²¯ to H₂PO4]¯ ions in the cell: i) if the pH of the cell…

A: The objective of the question is to calculate the ratio of phosphate ions [HPO4]²¯ to [H2PO4]¯ in a…

Q: What is the pH of a 1.1 M aqueous solution of sodium propionate with a pKa of 5 to which is added…

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Q: 10) What is the pK of a weak acid with a K of 4.7 X 10“?

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Q: At what point does the isoelectric point or pl occur? when the molecule has a single electric charge…

A: Isoelectronic point occurs at that pH where the net charge on the molecule becomes zero The net…

Q: What is the pH when preparing a solution od 1 mol NaOH and 2 mol of solid NaH2PO4? The pKa's of…

A: Given: Moles of NaOH = 1 mol. Moles of NaH2PO4 = 2 mol.

Q: 6) You are making 100 mL of 1 M phosphate buffer [pKa,1 = 2.12; pKa,2 = 7.21; pka,3 12.33] at pH 7.…

A: Required pH of the buffer solution, pH = 7 A buffer solution is made of a weak acid and its…

Q: What is the equilibrium constant for the following reaction that occurs when disodium citrate…

A: We have to calculate he equilibrium constant for the reaction : HC6H5O72– (aq) + H2O(l) ⇌…

Q: What is the pH of a solution containing 1.089 mol L-1 of a weak acid with pKA = 7.27 and 0.712 mol…

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Q: Given the following information: O1 +H,0 HOI + OH" H20 = %H;0+ + ½OH¯ K = 5 x 104 K2 = 1 x 10-7 What…

A: If the reaction is reversed then its new K' will be,K' = 1/K If two reactions are added to get a new…

Q: What is the pH of a 500 mL solution that is 0.40 M H2PO4-  and 0.20 M HPO42-? pKa values for H3PO4…

A: We have to calculate pH of the buffer solution before and after the addition of KOH

Q: If the equilibrium concentration of Ag1+ is 1.28 × 10-4 M, would the following set up for the Ksp…

A: Given:  Equilibrium concentration of Ag+ = 1.28 x 10-4 M To Determine: The given ksp set up for…

Q: 13. What is the AG, of Ce3+? The AG, of H+ is 0 kJ/mol and the AG, of H₂O() is -237.2 KJ/mol. Make…

A: Given Data:To determine:

Q: The pH of a .10M weak base solution is 10.7 at 25C. What is the deltaG rxn in kJ at 25C?

A: Assuming the weak base is monoprotic base BOH. Given : Concentration of weak base taken = 0.10 M…

Q: 6) When the reversible reaction HC;H;O2 (aq) E→ H*(aq) + C¿H3O;'(aq) is at equilibrium at room…

A: The given chemical reaction in equilibrium is: HC2H3O2(aq)  <------> H+(aq) + C2H3O2-(aq) ; pH…

Q: Draw the structure of the amino acid arginine depicted at different ph conditions (ph= 2, 7, and 10)

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Q: The peptide below is placed into a buffer with a pH = 1.54 -NH-CH-C HO- H;N-CH- CH2 -NH -CH-C…

A: We have to find out the direction of movement of peptide at pH=1.54