What volumes of 50 mM CH3COOH and 30 mM NaCH3COO solutions are needed to prepare 2L of 20 mM acetate buffer pH 3.6? (pKa for acetic acid is 4.74)

Q: What would you expect to see if you were to create a solution that has 20.0 grams of the NaCl and…

A: Chemical compounds are divided into two major types-ionic and covalent compounds. Ionic compounds…

Q: Calculate the normality of a solution that contains 4.5 g of (COOH)2 in 3000 mL of solution? (Assume…

A: The concentration of the solutions is measured by different methods like finding molarity,…

Q: Calculate the pH for a mixture of 0.5 mole of benzoic acid and one mole of sodium benzoate. The pK,…

A: The correct answer is option,g. = 4.2

Q: Calculate the cocentrations of acetic acid (pKa = 4.76) and sodium acetate necessary to prepare a…

A:

Q: Calculate the pH of the following buffers containing; 2.95M HC2H3O2 and 1.5M NaC2H3O2 ka = 1.8X10 ka…

A: According to Handersen Hasselbalch equation pH can be calculated using the following formula pH= pKa…

Q: As a technician in a large pharmaceutical research firm, you need to produce 200. mL of 1.00 M…

A: Given Values:  pH of the potassium phosphate buffer required = 6.96 pKa value of the potassium…

Q: Titration of a 12.0 mL solution of HCl requires 22.4 mL of 0.12 M NaOH. What is the molarity of the…

A: Molarity is considered as the moles of solute present in the solution.

Q: What is the pH of the buffer 0.17 M Na2HPO4/0.25 M KH2PO4?

A: Buffer is the mixture of strong acid and salt of that acid (base). If we add either strong acids or…

Q: Calculate the theoretical pH of a Tris buffer (pH 8.0) at 0 ºC. Assume that room temperature is 22…

A: pH = pka + log(c_base/c_acid) at 25°:   pH = -log(1.76*10^-5) + log(0.117/0.213)

Q: Assuming the molar extinction coefficient for para-nitrophenyl phosphate (PNP) is 55,290 mol "dm…

A: Given Values: ε=55290 c = ?A = 0.77 l = 1.5 cm

Q: Calculate the pH of a buffer that contains 0.15 M MOPS anionic form and 0.25M MOPS zwitterion.  The…

A: The zwitterion is the form of amino acid which has net charge of zero. The Henderson-Hasselbalch…

Q: Determine the mass of baking soda (84 g/mol) needed to completely react with 531mL of vinegar.…

A: Acid and base react to produce salt and water. In some reactions, gas may also be released (hydrogen…

Q: What is the m/v % concentration of a solution of LiCl with a density of 2.07 g/mL in 40.0 mL of…

A: Given Values: Mass or weight of LiCl = 2.07 grams The volume of the solution = 40 ml The density of…

Q: amino glycine pKa is 2.4, 9.8 Calculate the most effective buffering range. if there is two pka,…

A: The amino acid is the smallest monomer of the protein, which acts as a buffer system.

Q: How much magnesium chloride hexahydrate (MW = 203.3 g/mol) is required to make a 500 mL solution ata…

A: MW = 203.3 g/mol Concentration = 10 mmol/L Volume = 500 ml solution = 500/100 L = 0.5 L

Q: What is the pH of a 0.00550 M solution of HCl?

A: Strong acids completely disassociated into ions in solution but weak acids do not. The pH of the…

Q: Calculate pH of buffer prepared by mixing; 10ml of 0.10M of CH3COOH and 20ml of 0.10M of CH3COONa.

A: A buffer is defined as the mixture of a weak acid and its conjugate base or weak base and its…

Q: A 5 ml vial of hydrocortisone is having 2% (w/v) concentration. How many vials will be required, if…

A: KEY WORDS :- Formula for vial required = Dose required to prepareDose in hand×quantity

Q: determine the pKa of the acid and ph of the buffer sol'n of a buffer mixed with 0.1 M tris and 0.5 M…

A: Buffer solutions often are weak acid/strong acid and conjugate base. buffers resist the change…

Q: Would the carbonatelcarbonic acid conjugate base/weak acid system function as a good buffer at the…

A: A buffer is an aqueous solution that is formed of the mixture of weak acid and its conjugate base or…

Q: What is the functional difference between TAE and TBE buffer?

A: A buffer is a solution capable of withstanding pH changes even when a base or acid solution is…

Q: Prepare a 75 ml of a 10% (w/v) FeCl3 solution. How many grams of FeCl3 must be weighed out and…

A: Given Values: Volume of FeCl3 solution = 75 ml Concentration of the FeCl3 = 10% (w/v)

Q: Make the following prescription isotonic with lacrimal fluid: 0.06 g 0.30 g Ephedrine sulfate (E =…

A: A drug, often known as a medicine, is a chemical compound that has a biological effect on the human…

Q: Define the following: - pH - Buffer - pKa

A: An acid-base reaction takes place between an acid and a base and is used to determine pH. An acid is…

Q: What is the final concentration if 239mL of a 3.9M glucose solution is diluted to a volume of 842mL?

A: To solve this we will use the formula - M1xV1= M2xV2

Q: You need to prepare 1L of a 5×TE stock solution (1×TE buffer:10mM Tris,1mM EDTA).How much of Tris…

A: The mole is used as a unit in the SI system to quantify the amount of substance present. One mole is…

Q: The solubility product of a metal hydroxide M(OH)2 is 8.65 × 10-6.  What is the molar solubility of…

A: Ionic molecules are formed by the loss and gain of electrons to form respective positive and…

Q: Describe the preparation of 2.00 L of 0.100 M glycine buffer, pH 9.0, from glycine and 1.00 M NAOH.…

A: Glycine-Sodium hydroxide buffer is a common buffer which has good buffering capacity. This buffer…

Q: To make up a solution of phosphate buffered saline (PBS), you need 10 mM Na2HPO4 (anhydrous) (FW:…

A: Convert the constituents in grams by multiplying with the respective molarity to convert grams per…

Q: Calculate the protein concentration (in mg/ml) of an unknown sample with an absorbancy value of…

A: Bradford method of protein estimation is quick and simple method of protein estimation using…

Q: What is the ratio of TRIS/TRIS-H+ in a TRIS buffer at pH 8.7?

A: TRIS is tris aminomethane. It is an organic compound. It is mostly used as a component of buffer…

Q: What is the final volume of NaOH solution prepared from 100.0 mL of 0.500 M NaOH if you wanted the…

A: The solution is a homogenous mixture of two or more components mixed together. It has two…

Q: Which of the following aqueous solutions has the lowest pH: 0.1 M HCl; 0.1 M acetic acid (pKa =…

A: pH is used to specify the acidity or basicity of an aqueous solution. It measures the hydrogen ion…

Q: Calculate the concentration of Y4-ion in 0.0100 M EDTA solution at pH 6. for pH 6, α4 = 2,2 x 10-5

A: Ethylene diamine tetra-acetic acid (EDTA) is an aminopolycarboxylic acid with the formula…

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

A: The Henderson-Hasselbalch equation can be used to determine the pH of the buffer solution. The pH is…

Q: What is the pH of a solution of 100 ml of 0.01 M H3PO4 and 100 ml of 0.01 M Na3PO4?

A: A buffer is an aqueous solution containing a weak acid and its conjugate base or a weak base and its…

Q: s the pH of a 0.0001 M solution of hydrochloric

A: [H+]=0.0001=10-4 pH=-log[H]+ pH=4

Q: Consider a buffer solution that contains 0.55 M NH2CH2CO2H and 0.35 M NH2CH2CO2Na.…

A: NOTE: since you have asked multiple question, we will solve the first question for you. if you want…

Q: An aqueous solution contains 0.448 M dimethylamine ((CH3)2NH). How many mL of 0.240 M hydroiodic…

A: Buffer solution contains a mixture of weak acid and its conjugate base or weak base and its…

Q: A 35 mL of solution of hydrochloric acid is neutralized by 15 mL of 0.5 M potassium hydroxide. What…

A: Hydrochloric acid is the strongest base that will react with potassium hydroxide to produce water…

Q: Describe the preparation of 2.00 L of 0.100 M glycine buffer, pH 9.0, from glycine and 1.00 M NaOH.…

A: Molar concentration is a measure of the concentration of a chemical species, in particular of a…

Q: The density of trifluoroacetic acid vapor was determined at 118.1 °C and 468.5 torr, and found to be…

A: In a chemical reaction, equilibrium is considered the state, where the rate of the forward reaction…

Q: If there is an increase in the hydrogen ion concentration from 38 nmol.l-1 to 82 nmol.l-1, what does…

A: Acids and Bases:Acids: These are solutions that contain many hydrogen ions and it is represented as…

Q: In order to make a solution of the concentration 0.364 M, what mass of NaCl should be dissolved in…

A: The number of moles of a solute dissolved in one liter of solution is called molarity.

Q: The formula for a ciprofloxacin otic drop is given in the literature as follows10: Ciprofloxacin…

A:

Q: A 1.0-L 0.010 M buffer with pH 6.50 is given as an assignment to a group of students. Which is the…

A: A weak acid is used to prevent any change in the pH of the solution, regardless of the solute. On…

Q: What is the pH of the following buffer mixtures?                                            (a) 100…

A: Given values: (a) Volume of acetic acid = 100 ml Concentration of acetic acid = 1 M Volume of sodium…