If you needed to make 250 mL of a 1x TBE buffer (final concentrations of 89 mM Tris, 89 mM boric acid, 2.0 mM EDTA), how much of each of the following would you use: solid Tris base (121.1 g/mol); solid boric acid (61.8 g/mol); liquid stock solution of 0.50 M EDTA?

Q: The composition of TBT buffer is: 100 mM Tris buffer, pH 7.4; 150 mM NaCl; 0.01% Triton X-100.…

A: According to the given question, we actually had to use TBT buffer. But accidentally, we make use of…

Q: A 0.7026 g sample of an unknown acid requires 40.96 mL of 0.1158 M NaOH for neutralization to a…

A: Answer: To find out the molar mass of unknown acid it is being titrated against certain quantity of…

Q: One Erlenmeyer contains 50 mL of 0.1 M Na2CO3 solution, the other Erlenmeyer contains 50 mL of 0.1 M…

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Q: Which of the following chemicals would be the best buffer for a pH 9.00 solution: NH3 (Kb =…

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Q: How many grams of sodium fluoride should be added to 40.0 mL of 0.223 M hydrofluoric acid solution…

A: A solution containing a weak acid or a weak base along with it's conjugate base or conjugate acid is…

Q: How would you prepare 1.0 L of a 150 mM Tris buffer at pH 7.8 using Tris base crystalline (MW of…

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Q: In the titration of 50.00 mL 0.0200M weak base B using 0.0150 M HCI, which indicator is the best one…

A: Given: Weak base = 0.0200 M Volume of weak base = 50.0 mL Concentration of base = 0.0150 M pKb of…

Q: Suppose a back titration occurs that consists of 1.895grams of CaCO3 antacid (assume no buffer). The…

A: Introduction: As per the international system of unit (SI), mole is the unit of measurement for the…

Q: are the moles of base

A: Given, mass of base = 1.895g  Moles of acid = 528×10-³  Volume of acid = 1057mL

Q: A 100. mL buffer solution is 0.200 M in HAc and 0.150 M in NaAc. Calculate the pH of the solution…

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Q: A titration of a solution of a diprotic acid H2C3H2O4 with 0.955M NaOH required 33.1mL to reach the…

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Q: Give typed full explanation not a single word hand written otherwise leave it  An experiment…

A: Sodium acetate (NaC2H3O2) is a salt of weak acid acetic acid(HC2H3O2). When in a solution weak acid…

Q: Which of the following chemicals would be the best buffer for a pH 9.00 solution: NH3 (Kb =…

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Q: A 100. mL buffer solution is 0.200 M in HAc and 0.150 M in NaAc.  Calculate the pH of the solution…

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Q: A titration of a solution of a diprotic acid H₂C₃H₂O₄ (malonic acid) with 0.955 M NaOH required 47.8…

A: Given: Concentration of NaOH = 0.955 M Volume of NaOH required to reach second equivalence point =…

Q: 1.You    need    to    prepare    1L    of    a    5xTE    stock    solution    (1x    TE    buffer:…

A: Q1)                 Volume of buffer solution = 1 L (1000 mL)  Conc. of buffer solution to be…

Q: 5.0 mL of a buffer solution were prepared with 2.5 mL of 0.010 M HC2H3O2 and 2.5 mL of 0.010 M…

A: It is given that the 5.0 ml solution is a  buffer solution.  We know that, buffer solution are the…

Q: A buffer solution with pH = 5.0 is required, which one of the following acid, together with its…

A: The pH value of a buffer solution mainly depends upon the pKa value of the acid. If the pKa value of…

Q: When 10.23 ml of an unknown weak acid was titrated, it required 12.08 mL of 0.423M NaOH to reach the…

A: Given that : Volume of NaOH (V1) = 12.08 mL Molarity of NaOH (M1) = 0.423 M Volumes of weak acid…

Q: A buffer solution made with HCN and NACN has a pH of 9.16. Which statement is true? Ka(HCN) =…

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Q: You need to prepare 100.0 mL of a pli 4.00 buffer solution using (0.100 M henzoic acid (pk, = 4.20)…

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Q: Which of the following combinations of acids and conjugate bases would be the best to create a pH…

A: 1- In this question, we will see the best buffer system at pH 7.0  You can see the details…

Q: When 100 mL of a 1.0M strong acid is 50% titrated with 1.0M strong base, the volume of the base…

A: Acid-base titration: Titration is a method to determine the concentration of unknown acid by using…

Q: How many milliliters of 0.100 M HCl should be added to 5.00 g of sodium acetate (82.03 g/mol) to…

A: Given: The molarity of HCl = 0.1 M. The mass of sodium acetate, (m) = 5 g The molar mass of sodium…

Q: part a: A 0.500-L buffer solution was made with 0.25 M NH3 (Kb = 1.8 × 10-5) and 0.40 M NH4Cl. What…

A: Buffer solution is a type of solution that resists the change in its pH on adding small quantity of…

Q: You make a 200mM potassium phosphate buffer (pKa of 7.20) with monobasic potassium phosphate…

A: Given: Concentration of solutes = 200 mM = 0.200 M                                (Since 1 M = 1000…

Q: Calculate the change in pH after adding (2 g) from NaOH and molecular weight (40 g/mol) to a liter…

A: The change in pH after addition of base has to be calculated.

Q: One erlenmeyer contains 50 mL of 0.1 M Na2CO3 solution, the other erlenmeyer contains 50 mL of 0.1 M…

A: A question based on concentration terms that is to be accomplished.

Q: A 20.0 mL solution of 0.200M weak acid HA is titrated with a 0.400M NaOH solution. (Ka of HA = 5.0 x…

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Q: and acetic acid buffer solution was prepared by mixing sodium acetate (0.3 mol/liter), (0.3…

A: 1) a) pH of acetate buffer before addition of NaOH          Moles of CH3COOH = Concentration ×…

Q: You want to make the following buffer: 5% glucose, 100 mM tris and 10 mM EDTA in a final volume of…

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Q: What volumes of 0.200 M HCOOH and 2.00 M NaOH would make 0.600 L of a buffer with the same pH as a…

A: Given: The concentration of formic acid (HCOOH) is 0.200 M The concentration of NaOH (sodium…

Q: How to make a unknown buffer of 150mL of 50mM with PH of 7? The unknown molecule's molecular weight…

A: Suppose the unknown weak acid is HA (MW = 238 g/mol) Sodium salt of the unknown weak acid is NaA(MW…