As a technician in a large pharmaceutical research firm, you need to produce 200. mL of 1.00 M potassium phosphate buffer solution of pH = 6.96. The pKa of H2 PO4 is 7.21. %3D You have the following supplies: 2.00 L of 1.00 M KH2PO4 stock solution, 1.50 L of 1.00 M K2 HPO4 stock solution, and a carboy of pure distilled H20. How much 1.00 M KH2PO4 will you need to make this solution? Express your answer to three significant digits with the appropriate units. > View Available Hint(s) HA ? Volume of KH2PO4 needed = Valıge Units

Q: How many moles are needed to prepare  95ml of 18%(mVmV)  HCl ?  molar mass HCl =36.45g/mol steps…

A: Concentration of any solution refers to the amount or molecules of solute present in any volume of…

Q: 2) Calculate the pH during the titration of 20.00 mL of 0.1000 M butanoic acid (K,-1.54x10%) with…

A: Step 1:Step 2: Step 3:Step 4:Step 5:

Q: How many ml 2M NaOH would it take to neutralize 20 ml of 0.5M HCI?

A: Given: Concentration of NaOH , M1 = 2 M Volume of NaOH, V1 =? Concentration of HCl, M2 = 0.5 M…

Q: Quinoline is isolated from a reaction mixture by the process of steam distillation. A mixture of…

A: The numerical is based on Raoult's Law Relative lowering of vapour pressure = mole fraction of…

Q: Sodium carbonate reacts with HCI to produce carbon dioxide gas, water, and sodium chloride. Balance…

A: 1. Calculate the number of grams of sodium carbonate neededNote: Convert Units first and Solve for…

Q: 4) Fill in the table below for tubes 2-7 in red text. Table 1. Mixing table for BPB [Starting…

A: A serial dilution is prepared by making a series of dilution with a specific dilution that remains…

Q: Consider the titration of a 23.0-mL sample of 0.110 M HC2H3O3 (Ka=1.8\times 10−5) with 0.120 M…

A: volume of base required to reach equivalence point = (0.110 M x 23 ml)/0.120 M = 21.1ml of NaOH pH…

Q: In a neutral solution, the [H] is : O 1.0x10-14M zero 1.0×107M 1.0x10-7M

A: The acidity of any solution is determined by the molarity of the Hydrogen ions. So, the pH of any…

Q: Concentration You have to Chemical formula weigh Final volume of solution [mL] Miligram percent mg%…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: You record the absorbance of your unknown BSA sample at 0.276. What is the concentration in ug/mL of…

A: Standard curve can be used to determine the concentration of unknown sample by determining their…

Q: 18. Required is 1 L of 3/8 (v/v) strength solution. The usual concentration of the solution is 12%…

A: Acetic acid solutions are made with diluting pure acetic acid with a dilutant like water. Volume by…

Q: What mass of potassium nitrate KNO3 should be added to 255 g of water to prepare a 15% (m/m)…

A: Potassium nitrate is a chemical compound with the chemical formula KNO3. It is an ionic salt of…

Q: Provided Stock solution of Coomassie Blue: 0.500 mg/mL Volume of 0.500 mg/ml Solution Dilution to ID…

A: For calculating volume and concentration,  we should follow the formula V1S1 = V2S2where, V1 =…

Q: Determine the pH for the following solutions.  {H3O+}=2.4x10^-2 M

A: p in pH denotes negative of the logarithm(-log). So pH is negative logarithm of molarity of H pH…

Q: Calculate the pk, of an acid with Ka = 7.77 x 104.

A: pKa of an acid is the pH at which 50% of the acid is deprotonated or dissociated. +1/-1 pH unit…

Q: 50 mL of 5mM NaCl solution from 1 M NaCl solution

A: Dilution is the process by which we decrease the concentration of a solution. This process is vital…

Q: 439 mL of 0.270 M hydrochloric acid is exactly neutralized with 0.920 M potassium hydroxide…

A: Given Values: Volume of HCl = 439 ml The concentration of HCl = 0.270 M Concentration of NaOH =…

Q: BSA Concentration (ug/mL) Abs 2000 2.25 1500 1.715 1000 0.915 750 1.156 500 0.714 250…

A: A standard curve is defined as a calibration curve that is used for quantitative estimations. In…

Q: A neonate patient weighing 3,821 grams is prescribed gentamicin 6 mg/kg in D5W for IV infusion. If…

A: Gentamicin is an antibiotic that is administered to treat bacterial infections such as pneumonia.…

Q: A vial containing 400 mg hydrocortisone sodium succinate powder for injection is to be reconstituted…

A: GIVEN: Amount of hydrocortisone sodium succinate powder for injection = 400 mg Volume of injection =…

Q: Calculate the pH of a blood plasma sample with a total CO₂ concentration of 25.7 mM and bicarbonate…

A: The acid dissociation reaction taking place here is given below, where carbonic acid (H2CO3) gives…

Q: 50X TBE is 87 mM Tris-borate and 4 mM EDTA at pH 8.3. What is the molarity of each of the chemicals…

A: Given In 50X TBE  87 mM tris-borate  4 mM EDTA pH 8.3

Q: 200 microliters of a standard solution of 0.200 mg/mL caffeine was mixed with 4.8 mL of 50 mM sodium…

A: Equation of dilution: M1 × V1 = M2 × V2where:M1 is the molar concentration of the stock solution.M2…

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: can you show how to calculate the amount of two components for the required volume of a buffer with…

A: Given Values: Concentration of Tris = 0.25 M Concentration of Glycine = 1.92 M Concentration of SDS…

Q: What is the molecular weight of the molecule that gets eluted from the column at 10 ml?

A: The given graph shows a linear relationship between the elution volume (ml) on x axis and IgM…

Q: A prescription came in for 34% salicylic acid. The pharmacy has 95% salicylic and 10% salicylic acid…

A: To prepare 500 Mg of 34% salicylic acid using 95% and 10% salicylic acid, you can use the following…

Q: A 99Mo/99mTc generator is elute Monday at 7 am, producing 1.8Ci of 99mTc in the eluate vial, in 20ml…

A: Radiopharmaceuticals are administered precisely to diagnose and treat a wide range of medical…

Q: To prepare 500 mL of a 1X TAE buffer solution, we need to mix solution (so 25 times more…

A: TAE is a standard buffer for the preparation and operation of DNA agarose gels. TBE provides…

Q: 100 mL of 2.5 X NaOH solution from 50X NaOH solution

A: Given Values: Stock solution concentration (NaOH) = 50 X Final Solution concentration (NaOH) = 2.5 X…

Q: 28. Locke-Ringer's solution contains 9 g of sodium chloride, 0.24 g of calcium chloride, 0.42 g of…

A: Locke- Ringer's Solution:  Ringer's solution is a mixture of salts mixed in water that is used to…

Q: A 110.0value - mL buffer solution is 0.255M in NH3 and 0.395 M in NH4Br. The Kb alue for NH3 is 1.76…

A: Step 1: Given:Volume:  110 mL Concentration of NH3 = 0.255 MConcentration of NH4Br = 0.395 MKb of…

Q: Match the provided labels to the appropriate point on the titration curve. 14 4 120867NO Hd B Volume…

A: In this graph, x−axis has volume of strong base and on the y−axis we have pH.According to the given…

Q: From a 50% solution of dextrose, make 500 ml of a 5% solution

A: In your role as a nurse, your objective is to ensure the safety of patients and the correct…

Q: A 510 mL IV bag contains a 25% dextrose solution. How much of the original solution must be replaced…

A: During IV transfusion and medicine administration, the concentration of the drug in a solution must…