Explain the mechanism of denaturation for each agent: 1. Heavy metals 2. Organic solvents 3. Heat 4. Acids 5. Salts
Q: 18. (0.1) Is it possible to use UV-VIS spectroscopy to quantify a non- absorber species? Provide a…
A: The spectrometer measures wavelengths of electromagnetic radiation (light) that interacts with a…
Q: Which of the alternatives below indicates techniques used both to purify and to concentrate…
A: Proteins are polymers of amino acids linked by peptide bond and it is one of the important…
Q: Define briefly the term radioactivity.
A: Radioactive atoms contain energy that pours out spontaneously as energetic subatomic particles or…
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: Explain how the following will affect blood film or smear a. Humidity b. Temperature c. Speed d.…
A: White blood cells (WBCs, leucocytes), red blood cells (RBCs, erythrocytes), and platelets can all be…
Q: Give applications of fluorimetric analysis with respect to A) determination of metal ions by the…
A: Fluorometric analysis is a method of chemical analysis in which a sample when exposed to radiation…
Q: tion chromatography separates chemicals base on their differences in
A: Chromatography is a technique that is used for the separation of various mixtures. Depending upon…
Q: 1&1/2 tsp po BID x 14 days #QS How many milliliters should the pharmacy dispense?
A: The drug at a correct concentration helps to attain its therapeutic action. When the drug is taken…
Q: Barium sulfate is often used as a medical diagnostic tracer, however, it can only be administered…
A: Barium sulfate is white or yellowish odorless powder or crystals. The Melting point is 1580°C and a…
Q: 1&3/4 tbs po BID x 7 days #QS How many milliliters should the pharmacy dispense?
A: A drug or medicine is a chemical compound that, when administered, has a biological effect on the…
Q: A water sample contaminated with chloride ion, how can you estimate the sample purity?
A: Water in its pure form is referred to as the universal solvent. It this form it is tasteless,…
Q: The test for starch in water is A. silver nitrate. B. iodine. C. barium ions. D.…
A: Starch is a homopolysaccharide molecule that was composed of alpha-D-glucose units in 1-4 and 1-6…
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: 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: Why did the blank used in experimental procedures contain substrate, buffer and water?
A: A blank or blank determination is an analysis without a sample (Enzyme). Any enzyme assay requires a…
Q: Draw/illustrate the chemical reaction involved in Lugol’s test and explain the purpose of this…
A: Carbohydrates are polymer molecules that are composed of monosaccharide molecules. Monosaccharides…
Q: Drag and drop the labels into their corresponding empty boxes within the figure to complete the…
A: Microbial growth control also referred to as sterilization in which all forms of microbial life has…
Q: Plain soaps have what level of germicidal activity?
A: This question is based on action of the plain soap.
Q: In less than 3-5 sentences, explain the following attributes of water that makes it a polar solvent:…
A: Introduction: A water molecule is made up of three atoms which include one oxygen and two…
Q: 1. B,010H22 (aq) 2. HB,010H4 (aq) 3. H2B4010H4(aq) Using the above chemicals to match the below…
A: Asked : Chemicals to be matched with given terms
Q: UV detection in liquid chromatography requires that the analyte have a
A: HPLC UV detectors are used with high-performance liquid chromatography to detect and identify the…
Q: Which of the following is considered chemical control? O a. None O b. Heat, alcohols, ethylene oxide…
A: Chemical control is way to restricting the growth of pathogens. It is based on substances that are…
Q: What is “Autoradiography”? This method enables the determination of which macromolecule labeled with…
A: The techniques which provide images are useful in biological studies because they provide insight…
Q: Define disinfection. Define sterility. Compare and contrast disinfection with sterility.
A: Microorganisms are responsible for various diseases and food spoilage. It is therefore important to…
Q: Which of the following balanced chemical equations pertains to the chemical reaction involved in…
A: Calcium hydroxide is the chemical with formula CaOH. This is formed when calcium oxide ,CaO react…
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: Arrange the following in order of increasing Rf on thin-layer chromatography: acetic acid,…
A: Thin-layer chromatography is a method of separating non-volatile mixtures. Thin-layer chromatography…
Q: From your data in Table 8.2 choose the correct pH for household chemical listed here. pH 6 purple pH…
A: The pH is considered as the scale, which is used to specify the basicity as well as the acidity of…
Q: Which of the following are solutions?(a) Italian salad dressing(b) Rubbing alcohol(c) Algae in pond…
A: The term mixture in chemistry is defined as a material. It is made up of two or more different…
Q: In sterilization, which among the supplies, instruments, glassware, etc. under the list of materials…
A: Sterilization is a process of killing unwanted microbes on the surface of medical or industrial…
Q: Based on the data chart below, how far did the solvent travel up the chromatography paper?
A:
Q: 5b. Weight of 20 tablets (in mg) selected randomly is given below: Tablet no Weight (mg) Tablet…
A: To answer first we have to find the uniformity of weight of tablets. This involves calculation of…
Q: Why does PET use different isotopes than that of nuclear medicine exams with gamma cameras? What…
A: Nuclear medicine is a branch of medicine that deals with the use of radioactive substances in…
Q: Measurement of Bacterial Growth in LB, pH 3.2 Plot of Absorbance vs. Time (mins) c 37c 45'c 0.6 0.4…
A: The bacterial growth curve consists of four distinct growth phases: Lag Phase, Exponential Phase,…
Q: What is the difference between an antiseptic and a disinfectant?
A: Antiseptic and disinfectants are used to kill germs, bacterias which attack from outer environment.…
Q: Why must alcohol be diluted with water to about 70 % percent before it could be used as an effective…
A: 70% isopropyl alcohol is most commonly used as disinfectant and killing all surface microorganisms.…
Q: Food dye Initial concentration (µM) | Initial volume (mL) Final concentration (µM) | Final volume…
A: Given Values: Red 40: Initial Concentration (Ci) = 32 μM Initial Volume (Vi) = 1 ml Final…
Q: Explain the effects of the following changes on reactant and product concentrations:
A: A chemical reaction is a process that leads to the chemical transformation of one set of chemical…
Q: What is the difference between a tincture and an aqueous solution?
A: Given: Explain the difference between a tincture and an aqueous solution
Q: Essay type : Answer the following questions. (please intend me atleast 3 to 4 paragraphs) Why are we…
A: Why are we considering water as the universal solvent?
Q: Give the color of the cooked rice mixed with Lugol's iodine solution in these situations before…
A: Lugol's iodine test is a specific test for the detection of polysaccharides from…
Q: n human exist in chemically defined media for 48 hours?
A: A chemically defined medium is one whose constituents and concentrations (or quantities) are known.…
Q: 1. Calculate the pH of the solution with hydrogen concentration provided below: a. [H*] = 1.0x 10²…
A: pH is an important chemical parameter in water analysis. Different solutions will have different pH…
Q: Name the desirable characteristics of chemical control agents.
A: In most cases, chemical agents aren't designed to sterilise. The majority of the time, pathogens are…
Explain the mechanism of denaturation for each agent:
1. Heavy metals
2. Organic solvents
3. Heat
4. Acids
5. Salts
Step by step
Solved in 2 steps
- What is the purpose of: A. The concentrated salt solution? B. adding isopropyl alcohol to the solution? Why does it need to be in low temperature?Consider a HCI solution with a pH of 4.70. a) Calculate the concentration of HCl. b) Identify the two underlying assumptions in part a). c) The original solution is diluted by 1,000 fold. Calculate the pH of the resulting solution. Make sure to indicate if the forementioned assumptions are still valid.Discuss the results and observations in a regular laboratory experiments the denaturation of: 1. acetone 2. nitric acid 3. Heat 4. Acids 5. Salts
- Explain the mechanism of denaturation for the following agent: 1. Hydrochloric acid 2. Lead (II) acetate solution 3. Picric acid 4. Nitric acid 5. EthanolA homogeneous mixture consists of 12% ethanol, 28% methanol and 60% water. Which of these is the solvent for the mixture? A) ethanol B) methanol C) water D) Ethanol and MethanolComplete the table below. Assume that the only reaction is dissolution. Ignore the effects of acid/base hydrolysis. Show complete solutions. Show both the rounded and non-rounded answers. For the rounded answer, express in exactly 5 significant figures. Salt Ksp Common ion [cation] [anion] AgX 2.24 х 103 М х 5.27 х 109м Hg2X2 1.33 x 102 M Hg2* 1.65 x 107 M
- Barium sulfate is often used as a medical diagnostic tracer, however, it can only be administered orally, not by IV. Why isn’t it possible to administer this ionic compound intravenously?To analyze a sample by mass spectrometry, the sample must consist of gas phase ions. a) Explain why it is difficult to make gas phase ions of proteins. b) Generally explain how electrospray ionization turns proteins in solution into gas phase ions.In an electrostatic interaction, the strength of the bond is: Oa) proportional to the charges on the two interacting atoms. b) proportional to the dielectric constant of the medium. c) proportional to the charges of the two atoms and to the dielectric constant of the medium. d) proportional to the Charges of the two atoms and inversely proportional to the distance between the two atoms e) inversely proportional to the distance between the two atoms.
- Mobile phase can be : A) Solid or liquid B) Only solid C) Only gas D) Liquid or gasin a solution, the solvent is: A) always a gas B) always water C) the substance that is dissovled D) the substance in the Greatest amount3. a) An aqueous solution is 3.50% by mass potassium bromide, KBr, and has a density of 1.02 g/mL. The molality of potassium bromide in the solution is _________m. b)An aqueous solution of magnesium nitrate has a concentration of 0.474 molal. The percent by mass of magnesium nitrate in the solution is _________%. c)An aqueous solution of cobalt(II) bromide has a concentration of 0.153 molal. The percent by mass of cobalt(II) bromide in the solution is _________%.