Can we use maceration to extract volatile oils? why or why not?
Q: Why can’t nitric acid stains be removed by washing?
A: Nitric acid: it has the chemical formula HNO3. It is a conjugate acid of nitrate and a protic…
Q: Why might Gamma irradiation be considered better than using UV radiation?
A: It is required to provide reason that Gamma irradiation is considered better than using UV radiation…
Q: How can we make soap?
A: Soaps are the salts of fatty acids. Soaps are generally used as surfactants for washing cloths,…
Q: Why should you be careful not to underheat a smear during the heat-fixingprocess?
A: The bacterial strain are so small that it cannot be visualized by naked eyes. It has to be observed…
Q: _____ kills pathogens and some spoilage organisms but does not sterilize substances. Tyndallization…
A: Sterilization refers to any process that removes, kills, or deactivates all forms of life, in…
Q: One reason given by Peruvian officials for not chlorinating their water supply is that chlorine can…
A: Chlorination of water is one of the widely accepted methods used worldwide to eliminate the possible…
Q: Why are plastics/ polyesters hard to degrade biologically? What contributes to their microbial…
A: Plastic may be a broad name given to completely different polymers with high mass, which may be…
Q: Describe the type of media you choose in the laboratory, use and prepare them ,, I want to describe…
A: 1. Glass slides on which the sample is placed. 2. Cover slip made up of plastic. 3. Dropper 4.…
Q: What is the most efficient disinfectant of the following ( Alcohol, chlorine, soap ,hijyn), and…
A: Disinfectants are chemical agents that are built on inert surfaces to inactivate or kill…
Q: Why Nitrogen (or Argon) Gas Is Used as a Wine Preservative?
A: Argon is a highly stable, tasteless, and odourless chemical element. Argon is two and half times…
Q: What purpose does water serve in the “Effects of Antiseptics & Disinfectants”?
A: Answer: ANTISEPTICS : These are the liquid or semi-solid cream having some special properties to…
Q: Which of the following is not used as an antiseptic? A. Chlorhexidine B. Phenol C. Iodophor…
A: Antiseptics are the molecules or substances which has the ability to slow down or stop the growth of…
Q: Four process that may be used to refine oil
A: Refining of oil is an industrial process that involves the conversion of crude oil into useful…
Q: what is the effect of down temperatue on human body
A: Endothermic animals are warm-blooded animals that can maintain constant body temperature regardless…
Q: What are the types of wax bath?
A: There are many types of therapeutic baths that are prescribed by the physician according to the…
Q: A chemical tastes sour, turns litmus paper red and is of phenolphthalein. Which of the following…
A: Every chemical compound has a distinct physical and chemical properties. Physical properties include…
Q: What would happen if you had skipped the heat fixing step and continued with the staining procedure?
A: There are various staining methods are used for staining the bacteria, namely simple staining,…
Q: Why is it that a warm cuvette does not lose any significant heat during the absorbance measurement…
A: An absorption spectrophotometer is defined as a device that is used to calculate the absorbed light…
Q: What structural characteristics are necessary for good drying oil?
A: Drying oils are the ones which get hardened into a tough film when they are exposed to air. These…
Q: which among the following will not produce a translucent spot when placed in a paper? a. none of…
A: Oils and fats are major components of our body and play a vital role in growth, maintenance of…
Q: hat Is Polychrome Methylene Blue?
A: Methylene blue is a popular dye that allows us to glimpse microscopic life in vibrant colors. Before…
Q: Distinguish between a sterilant, a disinfectant, and anantiseptic. What is cold sterilization?
A: The human environment is filled with microorganisms. These tiny organisms are found everywhere on…
Q: Explain the mechanism of soap in cleaning the body
A: Soap is the chemical formulation that acts as the cleaning agent. Chemically soap is the salt of…
Q: What are the different types of disinfectants? How is each one different or similar from the others?…
A: Almost every environment on the planet contains bacteria and microorganisms. In fact, on one square…
Q: What is one advantage of a pour plate over a streak plate?
A: The pour plate method is a technique used to count the number of colony-forming bacteria found in a…
Q: what is oil immersion and why is it used
A: Light microscope is a microscopic instrument which uses visible light and magnifying lens to to view…
Q: Why are film formers and solvents important in sunscreen formulations
A: In generating medicines or cosmetics formulation plays a key role as it makes sure that the active…
Q: what does it mean if a pigment (let' say 'yellow') traveled beyond the solvent front in paper…
A: Paper chromatography is the process of separation technique which involved in speraration of…
Q: How does an emulsifier work? How does this affect the cleansing action of soaps?
A: Emulsion: a. It is a liquid preparation containing two immiscible liquids, in which one is dispersed…
Q: List the Comparison of Positive and Negative Stains.
A: A light microscope is the most commonly used microscope for viewing specimens. The specimens that…
Q: Given the figure below explain the effect of surfactants in terms of dirt removal on the solid…
A: A Surfactant molecule acts as a mediator between dissimilar boundaries, insoluble dirt, and water.…
Q: Explain the chemical nature of soap - is it hydrophilic or hydrophobic (or both)?
A: Soap is a mixture of sodium salts of various naturally occurring fatty acids. The soap is produced…
Q: What are the three (3) possibilities of humidification process based on water temperature being…
A: Humidification is the process of adding moisture to the air. This can be done by water or steam to…
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: 3) A: Does the oil and detergent mix? а. yes) b. no B: Why or why not?
A: A lipid is any of a number of chemical molecules that are water-insoluble. Lipids are…
Q: What is the pH of bleach?
A: pH is the measure of the acidity or basicity of a solution. pH can be defined as the negative…
Q: Aside from Paraffin, what is your recommended infiltrating medium for routine purposes? why?
A: INFILTRATION is the process in which the clearing agent is completely removed from the tissue and…
Q: Why does UV light have to be directly exposed and waved around an object that needs to be…
A: Ultraviolet (UV) radiation is a part of electromagnetic spectrum that lies between X- rays and…
Q: household bleach reduces microbes because it is a member of what group of chemicals? a. halogen b.…
A: Small organisms that are not visible to naked eyes are called microbes or microorganisms. It…
Q: Why do detergent powders removes stain?
A: Answer 1: Detergents have the power to clean. Detergents are surfactants. Detergents are amphiphilic…
Q: Why acids and boiling are necessary in maceration?
A: Maceration refers to an extraction process that enables contact between a solvent and the plant for…
Q: Sulfamethoxazole is a type of sulfonamide antibiotic. Its absorbance ranges from 250-300 nm in a UV…
A: Sulfamethoxazole Sulfamethoxazole is a sulfonamide based bacteriostatic antibiotic, widely used to…
Q: How does soap clean away dirt?
A: Soap is a cleansing agent used to clean dirt and kill microbes present on a surface. It is made by…
Q: What are the immersion media that need to be used?
A: Immersion media is used to increase the numerical aperture of the microscope by a factor equal to…
Q: Agar is a solidifying agent used in media preparation. How and why does the agar concentration in…
A:
Q: What is saponification? How can we make soap? What is the reaction involve in making soaps? Whats…
A: Soaps and detergents are commonly used in cleaning clothes, utensils and other dirty surfaces.…
Q: Suppose you have an initial chlorine concentration of 5%. Then out of that, you are told to prepare…
A: The concentration of a solution: The concentration of a solution is defined as the amount of the…
Can we use maceration to extract volatile oils? why or why not?
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Solved in 3 steps
- What makes the alcohol harmful to the skin when it has been soak for a very long time? What are the components of ethyl and isopropyl alcohol that make it dangerous when soaking into the skin for 15 minutes long?Why can’t nitric acid stains be removed by washing?What is the function of immersion oil?
- Why do detergent powders removes stain? Does a type of detergent powders differs in terms of rate in removing stains? Why or why not? Explain. Why do you think is the reaspn why some stains are easy to remove while the others are tough? Is it something to do with the detergent powder used or to the type of stain? Expain and justify.Why acids and boiling are necessary in maceration?Suppose you have an initial chlorine concentration of 5%. Then out of that, you are told to prepare 1L chlorine solution with concentration of 200ppm to sanitize the stainless steel table at the processing area. How are you going to prepare the solution?
