volumetric flask is made to prepare a certain chemical concentration through dilution for example if there is no volumetric flasks how can you prepare 0.2N or acetic acid from 1 N acetic acid stock solution.

Q: A solution is made by dissolving 9.5 g of sucrose, C12H22O11 (molar mass 342.3 g mol-1) in water to…

A: Molarity of the solution is defined as the mole of solute, which is dissolved in the per (L) liter…

Q: How much of the enzyme proteinase k (solute) is required to make 250ml of a solution with a…

A: A protease (also called a peptidase or proteinase) is an enzyme that catalyzes proteolysis.…

Q: how many mL diluent would you add to get 1600mL of 3/4 strength solution

A: Answer:- Part 1: 10 Oz cans use to get 1200 ml & sustacal is- 400 ml. Part 2: Diluent you add…

Q: Which of the following materials will have the greatest effect on colligative properties of a…

A: Pure water and solutions of ionic or covalent compounds behave differently in their physical…

Q: Indicate whether a solution will have more OH- or H+if the value of the solution is 10

A: The pH of the solution determines the acidity or basicity of the solution by measuring the molar…

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…

Q: What are the following is/are responsible for the denaturation of proteins? Select one: a. All of…

A: In living systems, protein molecules perform a variety of critical functions. Most importantly, the…

Q: Which of the following accurately describes the method of ion-exchange chromatography? more than one…

A: In Ion exchange chromatography proteins are retained with the help of non-covalent interactions and…

Q: What volume of 10X TBE buffer should you use to make 100mL of 1X TBE buffer? 10mL 1mL 0.1mL 100mL

A: TBE buffer stands for Tris-Borate-EDTA buffer. It is used for both agarose and polyacrylamide gel…

Q: A Vitamin C packet is added to a glass of water containing 620.0 mL of water. The Vitamin C packet…

A: Note: Since you have asked multiple question, we will solve first question for you. If you want any…

Q: How much sodium formate (HCOONa, 68.0069 g/mol) do you need to add to 400. mL of 1.00 M formic acid…

A: Given: Volume of formic acid = 400. mL pH=3.500 Ka = 1.77 x 10¯4 To calculate: Mass of sodium…

Q: A can of cola consists mostly of sugar dissolved in water, with some carbon dioxide gas that makes…

A: Answer - Cola consists mostly of sugar dissolved in water, with some carbon dioxide gas that makes…

Q: A pharmacist prepares 80 mL of an isotonic solution of 1.1 %w/v Lidocaine HCl (E-value 0.2). To…

A: The ability of a solvent to cause cells to shrink or swell is referred to as tonicity. A…

Q: A solution at pH 4 is _____ times as _______ as a solution at pH 7.

A: A solution at pH 4 is _____ times as _______ as a solution at pH 7. A pH of 7 is neutral. A pH less…

Q: Which of the following is the best explanation for a gel like this? A. Bromophenol blue was not…

A: SDS-PAGE (sodium dodecyl sulphate–polyacrylamide gel electrophoresis) is a discontinuous…

Q: Which of the following depicts the mild alkalosis? Select one: a. pH=7.33 Ob. pH=7.45 O c. H=7.65…

A: The collecting duct of kidney participates in reabsorption and secretion of selective ions into…

Q: An aqueous solution contains 0.34 M potassium cyanide. One liter of this solution could be converted…

A: pH is the potential of hydrogen. It is measured by a pH meter. A pH scale ranges from 0 to 14. pH…

Q: What volumes of 50 mM CH3COOH and 30 mM NaCH3COO solutions are needed to prepare 2L of 20 mM acetate…

A: Given Values: The pH of acetate buffer = 3.6 Concentration and volume of acetate buffer = 20 mM and…

Q: 12 grams of glucose will make how many mL of a 0.5 g/mL solution?

A: Given Values: Weight of glucose = 12 g Concentration = 0.5 gml How much volume of water needs to…

Q: You made a buffer solution by combining 250.0 mL of a 0.20 M sodium acetate solution with 50.0 mL of…

A: Given Values: Volume and concentration of the sodium acetate = 250 m and 0.20 M Volume and…

Q: Make 100 ml of a 1% solution of boric acid isotonic with blood by adding NaCl. The freezing point of…

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

Q: A solution at pH 7 is considered neutral because (a) its hydrogen ion concentration is 0 mol/L (b)…

A: Answer : D its hydrogen ion concentration is equal to its hydroxide ion concentration.

Q: To make a 1:100 dilution of a concentrated solution, you could O Mix 1 ml concentrated solution and…

A: Dilution in chemistry is the process of lessening the concentration power of a solute by adding in…

Q: Calculate the pH of a dilute solution that contains a molar ratio of potassium acetate to acetic…

A: The Henderson-Hasselbalch equation depicts the measurement of acidity as pH in biochemical…

Q: Calculate the pH of a solution containing 0.0314 M malic acid and 0.020 M potassium hydrogen malate.…

A: Given Values: Ka1 = 3.48×10-4 Ka2 = 8×10-6 Conc. of malic acid = 0.0314 M Conc. of potassium…

Q: Which of the following indicates buffering in the titration given in the image below? 12 1000000 11…

A: A buffer is a aqueous solution which is used to resist the pH change upon addition of acid or base.…

Q: What is the [OH-} concentration of a solution that has a pH of 3? O 10e^-3 O 10e^-10 O 10e^-11 O…

A: pH is defined as the negative logarithm of hydrogen ion concentration.

Q: Which of the following substances would be considered basic? A. hydrochloric acid (pH 1.0)   B.…

A: Introduction  pH plays and important role in determining the concentration of H+ ions in the…

Q: How would you classify a patient with the following laboratory values? Cr 0.9 mg/dl, BUN 51 mg/dl.,…

A: In azotemia, BUN, creatinine in blood and other secondary waste products are increased in body.…

Q: How would I calculate the amount of each component in each solution?  Stock solutions provided:…

A: In-order to perform dilution, we take a specific volume from stock solution and transfer it to…

Q: Which of the following solutions has the greatest concentration of hydroxyl ions [OH-]? Select one:…

A: A solution can be acidic or basic depends upon the concentration of H+ or OH- ions.

Q: rochloric acid Lemon Apple Banana Water Baking soda Drain cleaner Ammonia 12 3 14 Most acidic Most…

A: A solution having a pH value below than 7 is known as an Acidic Solution whereas a solution whose pH…

Q: Why are we using this chemicals?(Determination of solubility and soaping number of lipids)…

A: Lipids  Lipids are a group of compounds that are oily or greasy in nature. They consist of alcohol…

Q: Using a ph meter you find the ph of an unknown solution to be 8.0. How would you describe this…

A: pH scale, which ranges from 1 to 14,  is used to measure how acidic or basic a compound is.

Q: In protein electrophoresis, what reagent present  in the sample buffer is used to eliminate…

A: Protein electrophoresis is  a test used for the measurement of specific protein in a sample. The…

Q: A solution with pH 4 has __________ the H+ concentration of pH 8.

A: pH value is generally used to measure the acidic or basic level of a solution. It ranges from 0 to…

Q: The pH of a solution is 7, what is the H+ concentration?   Group of answer choices   1 x 10e-7 M 1 x…

A: Introduction: pH is an indicator that helps to determine whether the solution is acidic or basic. It…

Q: At what pH does a lysine solution exhibit the highest buffering capacity? (Lysine pKas: pk1 = 2.2,…

A: Buffer has the capability of resisting pH changes when a small amount of acid or base is added. It…

Q: You want to use a serial dilution to make a 1/50 dilution. The first dilution you make is a 1/5…

A: Introduction Dilution is a process by which the concentrations of solute are lowered down in a…

Q: Solution A is 20 degrees celsius, Solution B is 80 degrees celsius (both are the same kind of…

A: The amount of heat required per unit mass to increase the temperature by one degree Celsius is known…

Q: Which of the following is TRUE if pH is higher than the pka of the buffer? O [weak acid]…

A: A buffer is a solution that is composed of a weak acid and its conjugate base. The pKa value is the…

Q: The following are denaturing agents for proteins, except:* Please choose one correct answer only.…

A: Proteins are composed of twenty standard amino acids that are attached together via peptide bonds.…

Q: Each value represents a different aqueous solution at 25 °C. Classify each solution as acidic,…

A: Note: Since you have posted a question with multiple subparts, we will solve the first three…

Q: Which of the following match buffer solution: A- Consists of a mixture of a weak acid and its…

A: Introduction: The solution is a mixture of two compounds in which one dissolves the other. The…

Q: You are a graduate student who is trying to conduct an experiment. For this experiment, you need to…

A: In order to make working solutions, it is often required to dilute the available stock solutions.…

Q: A buffer solution is 0.40 M in acetic acid and 0.38 M sodium acetate (Ka= 1.75X10). Calculate the…

A: Given Values: Ka value of acetic acid = 1.75×10-5 Concentration of acetic acid = 0.4 M Concentration…

Q: You are supplied with the following:   NaCl (Mr = 58.443 g/mol)   250 mM Tris-Cl, pH 8 solution (1…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: A buffer solution consisting of citric acid and citrate in a ratio of 5:1 maintains the pH at 7.4.…

A: The buffer solution is any solution that contains mixture of weak acid and its conjugate base or…