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Q: Prepare 200 ml of a 0.125 M stock of NaCl from a 1 M concentrated stock solution of NaCl.
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Q: A 100-mL buffer solution with pH of 4.80 is prepared as a stock solution. Using this stock buffer…
A: Hi! Thank you for the question. We are authorized to answer two subparts at a time, since you have…
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A: Soap is the cleansing or emulsifying agent, which helps to remove dirt.
Q: Many of the buffers used these days, such asHEPES and PIPES, were developed because they have…
A: A buffer is a solution that prevents the pH of a sample from decreasing or increasing when acids or…
Q: what is the molar concentration of 80g of glucose dissolved in sufficient water to make two liters…
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Q: A 7 D
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Q: Calculate the mass percent of this solution
A: 16.7 grams in 645 ml solution Density of solution : 1.09 g/ml
Q: If an aqueous solution has a hydroxyl ion concentration of 1 x 10-6 M, what is the concentration of…
A: Water dissociates into hydrogen ions and hydroxyl ions and at neutral pH (pH =7) the numbers of…
Q: Which of the following solutions has the highest buffer capacity? K, of HCH;O=1.8x104 (а) 0.50 М…
A: Buffers are the solution that resists the change in pH after the addition of a small amount of acid…
Q: How will you prepare a 5% BSA solution? Show all your steps.
A: BSA stands for bovine serum albumin, which is a protein extracted from cows' serum albumin. In lab…
Q: Using chemical equations, explain how bicarbonate ion and carbonic acid function as a buffer pair.
A:
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: Why are buffers important in living systems? please explain
A: A buffer is a solution that can withstand pH changes when acidic or basic substances are added to…
Q: What is the relationship betweenpKa and the useful range of a buffer?
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Q: What is an hypotonic solution?
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Q: Arrange the following compounds in the increasing order of their boiling points :CH3CHO, CH3CH2OH,…
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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: If the equation produces from data is y = 0.300x - 0.857 and the absorbance for the unknown is…
A: Note: Since you have posted multiple independent questions in the same request, we will solve the…
Q: Draw the product formed when oleic acid is hydrogenated
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Q: Calculate the concentration of Y4-ion in 0.0100 M EDTA solution at pH 6. α4 = 2.2 x 10-5 for pH 6.
A: Introduction Fraction of EDTA in the form of Y4- is given as αY4-= [Y4-][EDTA]
Q: give the respective the TOTAL DILUTION FACTOR of respective serial dilutions. show complete…
A: Introduction: A serial dilution is any dilution in which the concentration decreases by the same…
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: We usually say that a perfect buffer has its pH equal to its pKa. Give an example of a situation in…
A: A buffer is a solution that, when adding an acid or basic components, may resist pH changes. Limited…
Q: What are the effects of buffer solutions and what is its importance to life processes?
A: A buffer solution is an aqueous solution consisting of a mixture of a weak acid and its conjugate…
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: Define a buffer and explain how a buffer works. [Note: be sure to address the role of conjugate…
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Q: The spectator ions in the reaction between aqueous perchloric acid and aqueous barium hydroxide are:…
A: 2-
Q: Calculate the volume of TAE buffer that you will need to prepare a 100ml solution of 1X strength…
A: TAE buffer stands for Tris-acetate-EDTA buffer. It is used in lab to do electrophoresis of nucleic…
Q: Suppose you wanted to make a buffer of exactly pH 7.00 using KH2PO4 and Na2HPO4. If the final…
A: The buffer solution is a solution which resists any change in pH on addition of small amounts of…
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: Write the equations for reaction of this buffer with a small amount of HNO3 and with a small amount…
A: Nitric acid is a strong acid and sodium hydroxide is a strong base, both are considered as strong…
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: Using the Henderson-Hasselbalch equation, calculate the pH of a buffer solution made from 0.20 M…
A:
Q: How to determine the relative concentration of H+ and OH- in a solution
A: There is a relationship between the [H+] ion and the [OH-] ion and just like that between the pH and…
Q: Tris NaCl buffer is known as?
A: Tris (with HCl) has a slightly alkaline buffering capacity in the 7–9.2 range. The conjugate acid of…
Q: Determine the pH of a solution composed of 1 M acetic acidand 1 M sodium acetate.
A: pH is a scale that is used to specify the acidity or basicity of an aqueous solution. Acidic…
Q: Table 2. Volume of BSA, protein content, and absorbance readings of reference solutions…
A: Standard curves are graphs of absorbance v/s concentration, It is used to find out the solute…
Q: Beer’s law is strictly obeyed only in dilute solutions. Why?
A: It is frequently expected that Beer's Law is consistently a direct plot portraying the connection…
Q: what is the pH of a solution with a H+ concentration of 1.44 x 10-3 M
A: pH is the potential of hydrogen.pH is a way of measurement of acidity or alkalinity.It measures the…
Q: carbonic anhydride
A: Carbonic anhydride It is the acidic oxide of carbonic acid. It is colourless, odourless and…
Q: In excess of alkaloidal reagent, did the precipitate formed dissolve or not? What is the evidence…
A: Alkaloid reagents such as tannic acid, potassium iodide, potassium ferrocyanide, or mercuric iodide…
Q: By a stoichiometric calculation, determine the pH of a buffer solution prepared by dissolving 25.5 g…
A: The equation that relates the pH of an aqueous solution of an acid to the acid dissociation constant…
Q: Using pearson's square, how to attain 30o Brix syrup using 50oBrix and 20o Brix syrup solutions?…
A: For using persons square we need to make a square first then on the left side of the square we write…
Q: What is the advantage of Benedict’s solution over Fehling’s Solution?
A: Carbohydrates are one of the major components of food intake. They are made up of carbon, hydrogen,…
Q: 950 mL of 1X CuSO₄ * 5H₂O solution from 25X CuSO₄ * 5H₂O solution
A: Given Values: Stock solution = 25 X CuSO4 . 5H2O Final Solution = 1 X CuSO4 . 5H2O Volume = 950 mL
Q: Explain the difference in the melting points of the linoleic acid and linolenic acid:
A: The fatty acids are the compounds that are also present in the cell membranes and allow for the…
explain the characteristics of hartman's solution
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