2. Explain why there is minimal change in the pH when a strong acid is added to a buffer as opposed to when it is added in water.

Q: 4. A salt solution consisting of 10.0% sodium chloride (salt) consists of how many parts per million…

A: Parts per million (ppm) is expressed as mg/Litre where 1 ppm means 1mg/litre. Hence if we dissolve 1…

Q: which of the following is a characteristic of a buffer? a. The pH will go down significantly when…

A: Buffers are solution which resist the change in pH upon addition of acidic or basic compoents.

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: 1. Calculate the pH of the solution with hydrogen concentration provided below: a. [H*] = 1.0 x 10²…

A: pH is the chemical parameter that influences the outcome of the chemical reaction. Different…

Q: . Compared with a basic solution at pH 9, the same volumeof an acidic solution at pH 4 has _________…

A: pH is a quantitative measure of the acidity or basicity of aqueous or other liquid solutions. The…

Q: A solution measuring pH 12 is _________ times __________ concentrated with H+ than a solution…

A: The term "pH" was first described by Danish biochemist Soren Peter Lauritz Sorensen. pH is defined…

Q: 2. How many grams of sodium acetate is needed to add to a 0.2M acetic acid to prepare a buffer of…

A: A buffer is a solution that is used to maintain the pH of the solution to a certain value. The…

Q: THE MAIN BUFFERS OF THE CELLULAR FLUIDS ARE EXCEPT a. HPO4 & H2PO4- b. НСОз- & Н2СОЗ c. NH40H &…

A: Introduction: The buffering system in body fluids provide an immediate response in fluctuations in…

Q: 2. Describe how you would prepare the following solutions: d) 250 mL of 0.10 M NH3 from a 14.8 M…

A: To prepare 250ml of 0.10M solution we need to dilute the 14.8M stock solution. The dilution is…

Q: 10. A neutral aqueous solution has a 7.0 M H3O+ concentration b. contains neither hydronium ions nor…

A: The acidity of an aqueous solution is determined by the concentration of protons or hydronium ions…

Q: The PH of a buffer solution should be at ... * Ka value PKa value O 7 14 7.4 ООО

A: A buffer solution is a solution that changes pH slightly on the addition of a small amount of strong…

Q: 6. Of the following pairs write which ones could be used as buffers and why: (a) 0.1 M NaOH and 0.1…

A: A buffer is defined as an aqueous chemical solution that resists a change in its pH or acidity. It…

Q: The colligative properties depend on the concentration based on the solvent. True O False

A: The given statement is true . The colligative properties depend on the concentration based on the…

Q: 10x

A: A. 10xA difference in 1 unit in pH is equivalent to 10x H+ ion concentration.

Q: 1. COMPARE AND CONTRAST the GEL FILTRATION and ISOELCTRIC PRECIPITATION in terms of the principles…

A: Compare and contrast the gel filtration and isoelectric precipitation in terms of the principles…

Q: What is the cause of evaporation and condensation?

A: Water cycle is the process that goes on in the nature where the water from different sources like,…

Q: 3. Why do some people overdose with folic acid?

A: Folic acid : Synthetic form of folate.

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: A buffer system ....

A: Homeostasis is the state of steady inside, physical, and manufactured conditions kept up by living…

Q: The pKa of the HEPES buffer is 7.55. What is its effective buffering range? Any pH below 7.55 Any pH…

A: HEPES means hydroxyethyl-piperazineethane sulfonic acid. Buffers are the solutions that resist the…

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: 10. Fill up the table and draw the following: a. guard cell in distilled water b. guard cell in 0.5…

A: The guard cells surround the stomatal pore.

Q: Which of the following is a carbonic acid buffering molecule in a basic solution?   Group of answer…

A:

Q: 2. The hydrogen ion concentration, [H*], of a solution, given its pH, can be calculated by taking…

A: Blood tissue is made of cell types like RBC, WBC, platelets and fluid component like plasma. Plasma…

Q: 8. What is the molarity of the solution prepared by diluting 75 mL of 1.50 M silver nitrate (AgNO3)…

A: Molarity of a solute is the number of moles of solute per liter of solution. The concentration or…

Q: Imagine that I added 5 drops of lemon juice (an acid) to two solutions of water. Solution 1: pH 7,…

A: By the measurement of pH of the solution we can conclude the the nature of the solution. If the pH…

Q: How do I prepare a 1 M ammonium acetate buffer with a pH of 7. I have solid ammonium acetate, .1 M…

A: Ammonium acetate buffer: Ammonium acetate buffer can be prepared from the reaction of ammonia with…

Q: Which mixture acts as buffer solutions? O 50 ml 0.1M H2CO3 and 100 ml 0.1M NAOH 100 ml 0.1M H2CO3…

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

Q: 2. Which of the following is a buffer? Why or why not? Can you give the components responsible for…

A: Buffer: The solution that can prevent the changes in acidity or alkalinity of a substance is called…

Q: 3. write a note on "The Protein Buffer Systems"?

A: Every biological process is pH-dependent, which means that a slight change in pH results in a…

Q: 8. A Patient received three different I.V. drug, each mixed in 50 ml of fluid, over 8 hours. The…

A: I.V (Intravenous fluid) is the amount of fluid administered through the bloodstream or…

Q: 12 If strong-base anion exchange resin is applied to treat raw water with silicate, the pH of raw…

A: Note : Hi ! Thank you for the question. We are authorized to answer one question at a time. Since…

Q: 10% NaCl solution presents a more environment than a 5% NaCl solution. isotonic O hypotonic…

A: The solution is considered to be hypertonic if a cell with a NaCl concentration of 0.9 percent is…

Q: Determine the serial dilution used from the original water sample (100 mL) with 4.8 x 105 CFU as…

A: Introduction:  Dilution is the process of reducing the concentration of a solute in a solution by…

Q: 2. What volume of 0.100 M HCI would have to be added to this buffering system, to reduce the pH to…

A: The pH of the acidic buffer of blood is given as:pH=pKa+log[bicarbonate][carbonic acid]

Q: 1. In a serial dilution, one initially sets a starting dilution and adds an aliquot portion of it…

A: Serial Dilution is a important procedure to obtain the desired concentration of reagent or serum or…

Q: 1) Dilution fraction 2) Water

A: Dilution is a method to dilute the specific sample to achieve the required low concentration of the…

Q: 2. Compute for the lactic acid content of burong mustasa samples given the values below. Show your…

A: Introduction: Using The Given Formula , We Can Easily Find Out The % T.A (Expressed As Lactic Acid )…

Q: 4.If the abnormal pH is due to a change in pCO2, then the condition is (metabolic, respiratory).…

A: The pH of the blood is maintained within a narrow range of 7.35 - 7.45.It is important to do so for…

Q: 2. In orange juice which of these is the solvent? O Water O orange juice concentrate O sugar alcohol

A: The solute is the substance which gets dissolved where as the solvent is the substance in which 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: If the addition of an acid or a base to a solution does not change its pH (or changed minimally),…

A: There are different types of solutions such as acidic solutions containing a lot of acids and basic…

Q: 3. The dose of gentamicin for patients with impaired renal function is adjusted to ensure…

A: Gentamicin is an antibiotic that is used to treat a number of different bacterial infections. Bone…

Q: 2. Which of the following correctly describe the colligative properties of aqueous solutions? I.…

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

Q: 2. By what type of solution can you categorize a solution whose concentration or strength has been…

A: Introduction: Titration is an analytical procedure in which a standard solution is used to find the…

Q: I have a 25x stock solution of buffer. How many ml do I add to water to make 50ml of 1x buffer O A.…

A: The preparation of solutions containing known concentration of solute is important for performing…

Q: 25. What would be the new pH of a 1L buffer solution (pH=7.8) upon the addition of 3mL O.0001 M HCI.…

A: A buffer solution is an aqueous mixture of a weak acid and its conjugate base, or vice versa, known…

Q: Blood is an alkaline buffer having pH around 7.4. If blood would not be a buffer, we may not…

A: Homeostasis is a tendency to maintain the stability of physical and chemical parameters that enable…

Q: 10. Why would it be inaccurate to say that solution that maintains a constant pH? KU a buffer is a

A: The pH of blood is approximately 7.4, which is somewhat basic. This pH fluctuates by less than a…