1. Tris(hydroxymethyl)aminomethane abbreviated as Tris or TRIZMA is frequently used to make buffers in biochemistry laboratories. Tris has a Molecular weight 121.1 g/mol and its solution in water is basic with pH = 10.5. Describe in details how to prepare 1L of 0.5 M Tris buffer solution at pH 7.5. %3D

Q: 1. A buffer solution of pH 7.30 will be prepared from 50.00 mL solution of 0.075 M NaH₂PO4 (K₂ =…

A: Given : pH = 7.30 Ka = 6.3 ×10^-8 Molar mass of NaH2PO4 = 119.0 g/mol Volume = 50.00ml Moles of…

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Q: A is solution is prepared by mixing 25 mL of 0.1 M HCHO2 with 25 mL of 0.2 M NACHO2. The pH of the…

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Q: Carbonate and bicarbonate can be combined to form a buffer system.  How many grams of magnesium…

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Q: Predict whether Fe(NO3)2 and sodium acetate will be acidic or basic salts. Please explain based on…

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Q: is solution is prepared by mixing 25 mL of 0.1 M HCHO2 with 25 mL of .2 M NaCHO2. The pH of the…

A: Given values-> Volume of HCHO2 = 25ml Molarity of HCHO2 = 0.1 M Volume of NaCHO2 = 25 ml Molarity…

Q: Buffer solution is made by taking 0.404 moles of acid (Pka=5.83) & 0.468 moles of sodium acetate and…

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Q: What is the pH if 0.188 L of 0.206 M KOH is added to the solution be?

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Q: The pk, for the acid dissociation reaction of bicarbonate is 10.33. HCO3 (aq) + H2O(1) 2 CO32-(aq) +…

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Q: Phosphorous acid, H₂PO₂ (aq), is a diprotic oxyacid that is an important compound in industry and…

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Q: A solution is prepared at 25 °C that is initially 0.44M in diethylamine ((C,H,),NH), a weak base…

A: Basic buffer solution: Basic buffer has a basic pH and is prepared by mixing a weak base and its…

Q: 500mL of a saturated solution of PbF2 (Ksp = 7x10-8) is prepared, this sample is titrated with…

A: We have find out the pH.

Q: A student wishes to make a buffer that has a pH of 4.65.  The student has HNO2 and NaNO2.  Nitrous…

A: A buffer mixture is formed by the mixing of weak acid with its conjugate base or mixture of weak…

Q: Cacodylic acid (dimethylarsinic acid, (HAsO2(CH3)2) is a common buffer used in biology to prepare…

A: Given that, a buffer solution is prepared by mixing 10.0 ml of 0.200 M NaOH with 20.0 ml of 0.150 M…

Q: 2) The ionization constant for NH3 in water is 1.8 x 10 - 5. Determine the hydroxide ion…

A: Welcome to bartleby ! As per company norms we cannot answer more than one question per session .So,…

Q: What is the pH of a 80.0 mL solution of 1.25 M concentration acid HA after 40.0 mL of 2.00 M…

A: Equation for the reaction of the monoprotic acid, HA and NaOH is: HA(aq) + NaOH(aq)   ---->…

Q: The chemical 5-amino-2,3-dihydro-1,4-phthalazinedione, better known as luminol, is used by forensic…

A: Molarity of a solution represents the concentration of a solute in the solution, which is expressed…

Q: Write the chemical reactions whose equilibrium constants are K, and K, for imidazole (C, H, N,) and…

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Q: Consider the following equilibrium occurring at 40°C: 2NO3 - (aq) + 9 H2O(l) + 2 Cr3+(aq)…

A: pH is the negative logarithm of hydrogen ion concentration. It can be given as, pH = -log[H+] [H+]…

Q: Draw the structure of the principal chemical form(s) that determines pH when the following compounds…

A: Acid are proton donors whereas bases are proton acceptors. Weak acids do not dissociate completely…

Q: 3) Arsenic acid has 3 pK,'s: 2.19, 6.94, and 11.51. Determine the concentrations of all the species…

A: Since you have asked multiple questions, we will solve the first one for you. For remaining…

Q: What is the total mass (amu) of carbon in CH3(CH2)6CH3?

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Q: What is the pH of benzoic acid solution with a %Ionization 2.6%? 7. If 105 mL of 0.25 M NAOH is…

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Q: An analytical chemist is titrating 112.7 mL of a 0.6400M solution of ethylamine (C₂H5NH₂) with a…

A: Given, Molarity of the ethylamine C2H5NH2 = 0.6400 M = 0.6400 mole/L The volume of the ethylamine…

Q: A buffer solution is prepared by dissolving 1.50 g each of benzoic acid, HC7H5O2, and sodium…

A: The objective of this question is to calculate the pH of a buffer solution prepared by dissolving…

Q: You have 100. mL of a 0.10 M solution of phosphoric acid (H3PO4). The pKas of this polyprotic acid…

A: The objective of the question is to determine the pH of the solution.It is given that,The…

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

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Q: 9. An unknown salt is either: NaF, NaCl or NH,CI. When 0.1 mol of the salt is dissolved in 1.0 L of…

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Q: 11.An acid-base equilibrium system is created by dissolving 0.20mol CH3COOH in water and diluting…

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Q: 4. a. A buffer is prepared by mixing 0.900 mole of ammonia and 0.850 mole of ammonium chloride to…

A: Before additionconcentration  = mol / volume[ NH3] = 0.9/0.5 = 1.8 M[NH4Cl] = 0.85/0.5 = 1.7 MpKa of…

Q: Calculate the pH of a buffer solution that prepared by dissolving 0.025 mole of CH3COOK and 0.020…

A: To calculate the pH of buffer solution use formula which is given below. pH=pKa+log[Salt][Acid] Here…

Q: 1. Calculate the concentration of sodium benzoate (NaC,H,O) that must be present in a 0.20M solution…

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Q: Calculate chloride buffered solutions with the following pH value (This problem requires values in…

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Q: A 25.00-mL sample of H2C2O4 solution required 43.88 mL of 0.1891 M NaOH solution to titrate it to…

A: The reaction is a neutralization reaction in which an acid reacts with a base to give salt and…

Q: A solution is prepared by dissolving 0.23 mol of hypochlorous acid and 0.27 mol of sodium…

A: Introduction to Buffer solution- A weak acid and its conjugate base, or vice versa, are combined to…

Q: A solution is prepared that is initially 0.41 M in trimethylamine ((CH N, a weak base, and 0.40M in…

A: In the given question we have to write the reaction to calculate the pH of Solution.

Q: A 75.0 mL sample of 0.0500 M HCN (Ka = 6.2 x 10-10) is titrated with 0.421 M NaOH to the equivalent…

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Q: How many moles of NaOH must be added to 1.0 L of 2.0 M HC2H302 (Acetic Acid, Ka = 1.8x10^-5) to…

A: Buffer is solution which have tendency to resist pH change when small amount of strong acid or…

Q: The acid HZ has a pKa of 7.03.  If 25.00 mL of a 0.111 M solution of HZ are titrated with 0.100 M…

A: The objective of the question is to determine the pH before the addition of any base.It is given…

Q: Consider the titration of 50.0 mL of 0.15 M H3A (K = 8.5 x 10-4, K₁, 4.8 x 108, Ka, = 2.8 x 10-¹1)…

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Q: A solution contains 0.339 M HA (K₂5.39-10) and 0.771 M NaA. What is the pH of this solution? What is…

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Q: A buffer was prepared using the weak base,NH3 of 0.200M, and NH4NO3 of 0.200M,the salt of its…

A: Given  [NH3]          = 0.200 M  [NH4NO3]   = 0.200M  PH  =  ? The buffer is called basic buffer…

Q: Write the balanced equation for each reaction and calculate the equilibrium constant for each…

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Q: NH3 is a weak base (K, = 1.8 × 10-') and so the salt NH4CI acts as a weak acid. What is the pH of a…

A: Given, Concentration of NH4Cl solution = 0.075 M Kb for NH3 = 1.8 × 10-5 pH of the solution = ?…

Q: We want to prepare a buffered solution having a pH of 4.97 using concentrated (23.6 M) formic acid…

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Q: The chemical 5-amino-2,3-dihydro-1,4- phthalazinedione, better known as luminol, is used by forensic…

A: Answer:In dilution process, volume of water is gradually added in the measured quantity of stock…

Q: 10) An aqueous solution has [HC/H5O₂) = 0.100 M and (Ca(CzHsO₂)2] = 0.200 M. K. = 6.3 x 105 for…

A: Given,Molarity of HC7H5O2 = 0.100 M Molarity of Ca (C7H5O2)2 = 0.200 MVolume of the solution = 5.00…

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.