You are hired by a company to make and test buffer solutions for biological labs. The main buffer system that you have to work on is the ascorbic acid/ sodium ascorbate buffer. The molecular formula for ascorbic acid is CH§O6 and the Ka is 8.0 x 105. The molecular formula for sodium ascorbate is C,H¬O6NA. Answer the following questions regarding your work at the company with this buffer system. (Hint: this is content from lecture as well!) а. Write out a balanced equation for the buffer system in water. b. What is the pH of your buffer system if you make a 157.4 mL solution of 0.789 M ascorbic acid and 0.924 M sodium ascorbate? c. How would you make the buffer system from part b if you started with solids of ascorbic acid and sodium ascorbate? d. Using the information given above, what would the resulting pH be if you added 2.10 mL of 1.41 M HCl to your buffer solution?

Q: Which of the following statements about buffers is FALSE? most body fluids contain natural buffer…

A: Answer  Buffer : -  Weak acid and its conjugate salt makes a buffer system…

Q: Which of the fellowing aqueous solutions are good buffer systems? O0.38 M hypochlorous acid + 0.25 M…

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Q: (4d-101) Which two of the following combinations would make functional buffer systems? HF and NaF…

A: The solution of a weak acid and its salt acts as a functional buffer solution. The solution of a…

Q: What is the pH of a buffer solution that is 0.15 M puridine, C6H5N and 0.08 M pyridinium bromide…

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Q: You are working in the laboratory and your manager asks you to prepare a 1 M sodium acetate buffer…

A: You are working in the laboratory and your manager asks you to prepare a 1 M sodium acetate buffer…

Q: The pH of a buffer can be calculated using the formula: 14-pOH = pKb + log of [proton…

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Q: Using the table of the weak base below, you have chosen Ammonia as your weak base in the buffer…

A: Given: pH of buffer solution is 8.8.

Q: 3. Consider the HCN-KCN buffer system, which species would react if a dilute aqueous HBr solution…

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Q: In biological systems, buffers are important because they facilitate changes in pH to enhance…

A: Buffer is a solution contains acid or base or a salt which can maintain the concentration of…

Q: Which of the following could you add to a solution of the weak acid, hydrosulfuric acid (H2S), to…

A: answer- hydrosulphuric acid 's conjugate base , HS- added to the solution of weak acid , H2S to make…

Q: Which of the following pairs of substances can be used to make a buffer solution?   a. CsOH &…

A: In this question, we will select the correct pair of substance which making a buffer solution.  You…

Q: Calculate the pH of buffer solution that contains 0.055 mol of formic acid HCOOH, and0.0175 sodium…

A: Given : Moles of formic acid i.e HCOOH = 0.055 mol. Moles of sodium formate i.e HCOONa = 0.0175 mol.…

Q: A formic acid buffer solution contains 0.18 M HCOOH and 0.13 M HCOO-. The pKa of formic acid is…

A: pH is the negative logarithm of Hydrogen ion concentration, stand for power of Hydrogen ion or…

Q: Part C In Part A, a 35.00 ml aliquot of a 0.195 mol L 2-methylbutanoic acid solution was titrated to…

A: First we will draw ICE table of the salt formed, then calculate pH using Kb value.

Q: raise the PH level of acidified bodies of water (lakes), a process of addition of CaCO3(s) is called…

A: As the pH level increases,  acidity decreases and basicity increases. When CaCO3 added into the lake…

Q: 8) What will be the pH (aq., 25 oC) of 250.0 mL of a solution of 0.821 M HCOOH and 0.909 M HCOOK,…

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Q: Consider the following reaction: CH3​COOH(aq)+OH−(aq)CH3​COO−(aq)+H2​O(l)       See Periodic Table…

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Q: What is the pH of a buffered solution that is 0.12 m lactic acid (HC3H5O3) AND 0.10 m sodium…

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Q: Blood is mainly buffered by HCO; /H2CO3 (H2CO3, Carbonic Acid, K.= 4.4x10 -") buffer system.…

A: The pH of a acidic buffer can be calculated by the Henderson-Hasselbalch equation as follows: pH=pKa…

Q: What is the relevant reaction that occurs when a solution of strong acid is added to a buffer…

A: If a strong acid (H3O+) is added to a buffer, the weak base (A-) will react with the H+ from the…

Q: s this a buffer system? NaF + Ca5 (PO4)3OHCa5(PO4)3F + Na+ + OH-

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Q: Consider the generic dissociation equation... HA + H20 H3O* + A° .where HA is a weak acid Based on…

A: Buffer Solution is a water-based solution that consists of a mixture of a weak acid and its…

Q: C6H4NH2COOH, para-aminobenzoic acid (PABA), is used in some sunscreen agents. Calculate the…

A: Consider the given information is as follows; Concentration of C6H4NH2COOH = 8.0×10-2 MKa =…

Q: 4. Human blood is slightly basic in nature with a normal pH range of 7.35-7.45. The blood pH is…

A: a) The component of the buffer that will react to the added acid has to be determined and explained.…

Q: 9. In `CH,OH 5. A buffer solution contains H2CO3 and HCO3, resulting in the equilibrium shown by the…

A:

Q: What is the pH of 1.000 L of a solution of 100.0 g of glutamic acid (C5H9NO4, a diprotic acid; K1 =…

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Q: The organic compound trishydroxymethylaminomethane is abbreviated Tris and is basic. The conjugate…

A:

Q: Enter your answer in the provided box. A buffer solution is prepared in such a way that the…

A:

Q: Consider the HCN-KCN buffer system, which species would react if a dilute aqueous HBr solution were…

A: Here we are required to find the species which would react with HBr.

Q: A buffer solution is prepared in such a way that the concentration of propanoic acid is    8.0 ×…

A: Given, Ka = 1.34 ×10−5   C2H5COOH(aq)  +  H2O(l)  ⇌  H3O+(aq)  +  C2H5COO−(aq) propanoic acid…

Q: Which of the following can act as buffer solutions? I) 0.1 M HC2H3O2/0.1 M NAC2H3O2 II) 0.1 M…

A: The following solutions that can act as buffer solutions are to be identified- 0.1 M HC2H3O2 / 0.1…

Q: A buffer solution is prepared in such a way that the concentration of propanoic acid is 8.5 × 10−1 M…

A: pH of buffer solution is calculated by using Henderson-Hasselbalch equation. pH = pKa +…

Q: A saturated aqueous solution of o-nitrophenol, HOC6H4NO2 has pH=4.53. What is the solubility of…

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Q: The weak base colloquially known as Tris, and more precisely as tris(hydroxymethyl)-am inomethane,…

A: Buffer solution is the solution which resist to change the pH on the small addition of acid and base…

Q: Consider a buffer solution containing an acid with a pKa of 2.3 and an acid concentration that is…

A:

Q: Which of the following statements about buffers is FALSE? O a buffer consists of a weak acid and its…

A: Buffer is an substance  which resist any change of pH after addition  of  Some amount of acid and…

Q: To produce a formate buffer solution that is at a pH of 4.06, what should the concentration of the…

A: Buffer solution: The solution that resists the change in pH is known as a buffer solution. The…

Q: Which of the following acid/base conjugate pairs could you use to make a buffer solution with a pH…

A: Here we have to make a buffer solutions using conjugate acid/base pairs. The required pH is 12.55.

Q: If you have a ka = 8.25x10^-8, what buffer system will you use? Acetic acid (HC2H302) - Acetate ion…

A: Given: Ka of acid = 8.25 × 10-8

Q: In the textile industry, many dyeing processes utilize buffers to maintain the correct pH for…

A: Buffer solution: The solution which resists the change in it's pH when a small amount of strong acid…

Q: What is the pH of a buffer prepared by combining 0.461 moles of  HC2H3O2 with 0.486 moles of…

A: Given-> Moles of CH3COOH = 0.461 mole Moles of CH3COONa = 0.486 mole  Volume = 531 ml

Q: Adding acid to the buffer, NH3-NH4*, will produce this (net ionic) reaction: H*(aq)+OH(aq) =H₂O(1) O…

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Q: Consider a buffer solution prepared from HOCI and NaOCI. Which is the net ionic equation for the…

A: Buffer solution: The solution that resists the change in pH is known as a buffer solution. The…

Q: By mixing formic acid and sodium formate a buffer solution was prepared in a way that the [Formic…

A: Henderson's equation: pH = pKa + log [salt]/[acid]

Q: Given,  Molarity of glycine hydrochloride (say HA) = 0.1 M  Volume of glycine hydrochloride = 20…

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Q: What is the pH of a buffer solution made by dissolving 0.10 mol of formic acid, HCOOH,  and 0.10 mol…

A: pH of an acidic buffer solution: pH = pKa + logHCOO-HCOOH pH = 3.75 + log 0.100.10 pH = 3.75 + log 1…

Q: How does NaC2H3O2 act as a buffer

A: Answer  NaC22H3O2 is a buffer solution because this solution made by strong…

Q: CO2 + H,0 = H,CO3 = H* + HCO3 = 2H* + CO32- carbonic acid bicarbonate carbonate Shown above are the…

A: CO2 +H2 <=> H2CO3 <=> H+ + HCO3-<=> 2H++CO32- In this equilibrium condition, HCl…

Q: 1. The lonization constant (Ks) of pyridine (CsHsN) is 5.62 x 10-. If 11.3 grams of sample of…

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Q: Calculate the pH of a formic acid (Ka = 1.8 x 10-4) buffer solution that contains 0.35 mol HCOOH and…

A: Given:  Moles of HCOOH present = 0.35 mol Moles of HCOO- present = 0.28 mol Volume of the solution =…