Why is the equilibrium between the acid NaH2PO4, and its conjugate base Na2HPO4, a suitable buffer for maintaining intracellular pH (pH 6.9-7.3)? Justify your answer using your titration curve from part A.

Q: What is the pH of a solution of Atropine (a weak base) if the concentration of nondissociated form…

A: Given : Weak base Atropine (Assuming B) pKb of base = 4.35  Solubility of base = 0.983 M And initial…

Q: When CaF2 is dissolved in water to reach saturation, the concentration of Ca2+ = 4.2 x 10-4 M. (a)…

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Q: The pH of the given solution of lactic acid and lactate is 4.30. Calculate the pKa of lactic acid,…

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Q: Draw the structures of the predominant forms of glutamic acid and tyrosine at pH 9.0 and pH 10.0.…

A: The pH of weak acids are calculated from Henderson Hassel Bach equation

Q: On the basis of Le Chatelier's principle, explain why Ag2CO3 dissolves when HNO3 is added.

A: Le Chatelier’s principle states that if a given chemical system is present in equilibrium  and a…

Q: 2. Joey was tasked to ensure that an enzyme responsible for keeping his species from extinction…

A: The solutions are given below -

Q: From the Henderson-Hasselbalch equation, calculate the ratio of dihydrogen phosphate (H2PO4) and…

A: Henderson- Hasselbalch equation is used for finding the pH of the buffer solution. Buffer solutions…

Q: What is the pK of the weak acid HA if a solution containing 0.1 M HA and 0.2 M A− has a pH of 6.5?

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Q: 1. What happens to glycine if it is titrated by a strong acid like NaOH? Calculate the Isoelectric…

A: Here we write the reaction about what happens when glycine is titration by a strong acid. We also…

Q: What is the equivalence point pH of a 0.1M solution of phenylalanine that is fully titrated with…

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Q: Write equations for the decomposition of H2CO3 (aq) and H2SO3 (aq).

A: H2CO3(aq) is an aqueous solution of the hydrated form of carbon dioxide gas, CO2(g). H2SO3(aq) is an…

Q: The pKa of salicylic acid is 2.97 whereas the pKa of benzoic acid is 4.19. Why is salycilic acid a…

A: Given statement and information,             Salicylic acid is a much stronger acid compared to…

Q: Write balanced equations and expressions for Ksp for the dissolution of the two compounds: a) BaF2…

A: For a reaction, expression for Ksp is,

Q: An analytical chemist is titrating 150.8 ml. of a 0.8200M solution of trimethylamine ((CH,)N) with a…

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Q: 120 mg of codeine hydrochloride (CodHCl) is dissolved in 10.0 mL of water.  Calculate the expected…

A: Since you have posted multiple completely unrelated questions, we are entitled to answer the first…

Q: The base ephedrine has a pKa value of 9.6. Calculate the theoretical end point pH when a 0.1 M…

A: Ephedrine, the organic molecule used in the prevention of low blood pressure and asthma. The…

Q: Both functional groups of salicylic acid ionize in water, with Ka = 1.0 × 10^-3 for -CO2H group and…

A: Given: Ka for –CO2H group = 1.0 x 10-3 Ka for –OH group     = 4.2 x 10-13 Solubility of salicylic…

Q: solubility of Ag2CO3 in water: a) Decrease on addition of AgNO3 b) Increase on addition of HNO3…

A: Ag2CO3(s)< -----> 2Ag+(aq.) + CO32-(aq.)  1) if we add AgNO3, concentration of Ag+ increases,…

Q: Consider the titration of 50.00 ml of a solution of 0.2574 M of the fully protonated form of the…

A: Determine the number of moles.   Number of moles of glycine = Molarity (M) × Volume (L)…

Q: 2. Phoebe was tasked to ensure that an enzyme responsible for keeping her species from extinction…

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Q: A solution of amino acid having carboxylic side chain was titrated against NaOH. If initial pH  of…

A: A molecule that have equal number of positive charged functional group and negatively charged…

Q: You are supplied with the following: NaCl (Mr = 58.443 g/mol) 2.5 M Tris-Cl, pH 8 solution (1 litre)…

A: We determine the grams of NaCl needed:  15*10-3 mol/1000 mL * 500 mL * 58.433 g/1 mol = 0.438 g…

Q: If 100 mls of 0.02 M HCl added to 400 mls of 0.5 M glycine buffer at pH10.4, what is the resultant…

A: A buffer solution is the solution composed of acid and conjugate base in such a way so that the pH…

Q: Given that pKb for iodate ion (IO-3) is 13.83, find the quotient [HIO3]/[IO-3] in a solution of…

A: For a weak base, pH can be calculated as: pOH=pKb+logHIO3IO3-

Q: 2. Joey was tasked to ensure that an enzyme responsible for keeping his species from extinction…

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Q: What molar ratio of salt to acid would be required to prepare a buffer solution with a pH of 5.9?…

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Q: Given a 0.300 M solution of anserine at its isoelectric point and ready access to 0.100 M HCl, 0.100…

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Q: 2. Phoebe was tasked to ensure that an enzyme responsible for keeping her species from extinction…

A: given  find buffer for store the enzyme At PH =10

Q: The Ka of CH3COOH is 1.8 x 10-5. Calculate the pH of a solution containing both 0.20 M CH3COOH and…

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Q: Calculate the pH of 1.25x10^-2 M of the decongestantephedrine hydrochloride if the pKb of ephedrine…

A: Ka value is calculated.

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

A: Buffer solution is one that resists change in pH. H3PO4 is triprotic acid, so, it has three pKa…

Q: Write the reaction involved when ascorbic acid is titrated with: Iodine Dichloro-indophenol solution

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Q: What is the effect of pH on protein solubility? What is the isoelectric point (pI) of soy protein?

A: Proteins :-        A protein is a naturally occurring organic compound,  extremely complex substance…

Q: A 100.0 mL solution containing 0.973 g of maleic acid (MW = 116.072 g/mol) is titrated with 0.364 M…

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Q: Sketch a titration curve for the amino acid gly-val and indicate the pKa values for all titratable…

A: Solution                         Given that        Draw Sketch a titration curve for the amino acid…

Q: Sketch a titration curve for the amino acid cysteine, and indicate the pKa values for all titratable…

A: Cysteine is a polar uncharged amino acid containing a thiol group (SH), which on reaction with thiol…

Q: (a) What weight of glycine (pKal- 2.4; pKa - 9.6), and what volume of IM HCI are required to make…

A: At the half-equivalence point, the pKa for the solution is equal to pH of the solution. In 100 mL of…

Q: Use

A: We will use Henderson-Hasselbalch equation

Q: Based on the graph, the retention of 4-aminobenzoic acid is not affected changes in mobile phase pH…

A: In the ph (2-9) , 4-aminobenzoic acid remains in zwitterionic form and have both +ve and -ve end…

Q: If 100 mls of 0.02 M HCl added to 400 mls of 0.5 M glycine buffer at  pH10.4, what is the resultant…

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Q: Calculate the pH at 25°C of a 0.68 M solution of potassium butanoate (KC3H7CO2). Note that butanoic…

A: Given, that the pKa of butanoic acid = 4.82 We have to calculate the pH of a 0.68 M solution of…

Q: Calculate the pH of the solution after the addition of each of the given amounts of 0.0651 M HNO3 to…

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Q: Suppose a biochemist has 10 mL of a 1.0 M solution of a compound with two ionizable groups at a pH…

A: Given in following question

Q: Write the reaction of PCl5 with heavy water.

A: Phosphorous pentachloride has chemical formula PCl5 and it is a pale greenish-yellow solid color…

Q: 1.Why is there a need to standardize the NaOH solution? 2. Why is there a need to use CO2-free water…

A: 1. Standardization is the process of determining the exact concentration of a solution.…

Q: A weak acid (HA) with a pKa of 4.0 has a distribution constant of 5.2 between an organic and aqueous…

A: The fraction of HA acid in the organic phase at pH 2 and 6 is calculated:

Q: write equations for the decomposition of h2co3 (aq) and h2so3 (aq)

A: Decomposition reaction:It is a reaction in which a reactant is broken down into multiple products.

Q: Sketch a titration curve for the amino acid lysine and indicate the pKa values for all titratable…

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Q: Please answer 13.3 and 13.4

A: