If we wanted to know how “red” a red liquid solution is, we would use a light transmittance measurement. Based on the lab, what device would be used? a) manometer b) chromatogram c) spectrophotometer d) manometer and spectrophotometer

Q: I have a microscope with oculars that are 20x and am viewing a slide using oculars that are 50x.…

A: Introduction  An instrument used to magnify small objects called a microscope. Even at the cellular…

Q: If a researcher forgot to wipe the outside a sample cuvette to make it free of drops, fingerprints,…

A: Absorbance is the amount of light absorbed by chemical species present in the sample. It is measured…

Q: p between absorbance (A) and transmittance (T) for the basic spectrophotometer technique.

A: A method to measure how much a chemical substance absorbs light by measuring the intensity of light…

Q: How does a contaminant such as salt affect the absorption of light by a spectrophotometric sample?

A: Spectrophotometry is a method in which the absorption or transmission properties of a material is…

Q: 4) Why do you use immersion oil with 100X objective lens? 5) What is the total magnification of a…

A: Microscopes are important and essential tools in microbiology and cell biology. A simple microscope…

Q: Using a compound microscope, if I move my sample from up to down (), in which direction will the…

A: Answer: COMPOUND MICROSCOPE = It is the type of microscope which is used to magnify the…

Q: Objective lens X has a limit of resolution equal to 0.2 mm while objective lens Y has 30 µm. a.…

A: * object lens is the optical element which gathers light from object and focuses light rays to…

Q: eservatives cannot be used for direct + mount ?

A: The disease is a state of the body in which the physiological mechanisms do not function in a normal…

Q: Would phase microscopy be of any particular value when examining a stained specimen? Explain

A: The area or field of study in which microscopes are used to view an object that cannot be seen…

Q: Match the following items: [4] 1.     540 nm A.    Wavescan 2.     Quantity of light of a specific…

A: The absorbance of a solution of a biological molecule is determined by Lambert-Beer law. The law…

Q: What is Audiometer? When is it used?

A: An Audiometer is a subjective device that is used to evaluate the hearing threshold of a person.  It…

Q: WHAT ARE THE Steps in spectrophotometer

A: -Spectrophotometer is an optical instrument which is used to measure the concentration of a known…

Q: If we used the 365nm setting on the UV light box would this have caused more or less UV light…

A: Ultraviolet light cause health issue as it is associated with DNA damage and skin cancer. Sunlight…

Q: What are the light sources used in UV-vis spectrophotometry

A: Spectrophotometer is an instrument used for measuring the concentration of solutes in solution by…

Q: Suppose you were in a research lab in Romania and the lab is equipped with several…

A: Proteins are biomolecules that play a variety of roles in living systems. They include catalysis,…

Q: FOV measured at 100x total magnification is 400 micrometers. What is the FOV at 40X total…

A: NOTE: Hi! Thank you for the question, As per the honor code, we are allowed to answer one question…

Q: Total Magnification is obtained by  Select one: A. Magnifying power of both the objective lens and…

A: Magnification is the term used for the increase in the size of the sample when seen under a…

Q: What is shown? Why did we use the slide? What is the arrow pointing to? What did we use it for? What…

A: Microscope is a instrument which is used to visualise the specimen that can't be seen by naked eyes…

Q: Which of the following methods uses a galvanic cell? -cyclic voltammetry -electrogravimmetry…

A: A galvanic cell which is also called a voltaic cell is an electrochemical cell wherein an electric…

Q: Which of the following choices is the best emulsifying agent? (a) CH3COOH, (b) CH3CH2CH2COOH, (c)…

A: An emulsifying agent is a chemical agent, which helps in stabilizing the hydrophilic and hydrophobic…

Q: How can you tell if the current or the gel electrophoresis is already running and what are the…

A: Gel electrophoresis is the process where DNA, RNA, and protein fragments get separated depending on…

Q: Can colorless samples be analyzed using a UV-Vis spectrophotometer? Yes or No or Maybe?

A: UV-Vis Spectroscopy  It is defined as a quantitative technique that is used to identify the…

Q: What are 2 advantages to using absorbance values (from a Spectrophotometer) over a spread plate and…

A: Introduction: Spectrophotometry is a method utilized for the evaluation and portrayal of drab mixes…

Q: What could potentially happen if you leave the slide exposed for too long to the open flame? Why do…

A: If the slide is overheated the cell wall of the smear will be ruptured . Concentration and freshness…

Q: What is the relationship between the working distance of an objective lens and its magnification…

A: Microscope is an optical instrument that uses a lens or an arrangement of lenses to magnify an…

Q: Why don’t most light microscopes use 303 ocular lenses for greater magnification?

A: The ‘human eye’ is the most valuable and sensitive sense organ. It is a natural optical instrument.…

Q: How is the UV spectrometer work? What is absorbance and how is it determined?

A: Answer of the question given below...

Q: (a) What two adjustments can be made to the condenser? (b) What effect do these adjustments have on…

A: Microscopes are optical instruments that use lenses to magnify an object. They help to observe…

Q: Why does one see methyl orange as orange in color? What blank would be used to standardize this…

A: 1. Methyl orange is a pH indicator frequently used in titration because of its clear and distinct…

Q: What is jack-o'-lantern ?

A: The name Jack- o'- lantern  comes from phenomenon of a strange light flickering over the peat dogs…

Q: Question 1 options:    Length of the sample tube   Concentration of the substance   Temperature…

A: The property of the compound to rotate the plane of polarization of the plane polarized light is…

Q: Suppose you conduct direct visible spectrophotometry with red fruit punch as your solution. Which…

A: Spectrophotometry is a process which uses a spectrophotometer to determine the amount of photos…

Q: If a darkfield condenser causes all light rays to bypass the objective, where does the light come…

A: In bright-field microscopy, thin and transparent objects cannot be seen properly because of the…

Q: What is Ultraviolet (UV) light ?

A: The different kinds of EM radiation that are part of the electromagnetic spectrum, namely: Gamma…

Q: If the total magnification of a slide is 400x and the ocular lenses are 10x, what is the magnifying…

A: Magnification is the process of enlarging the apparent size. This enlargement is quantified by a…

Q: spectrophotometry, what is the role of the green background in the set-up? What does it represent in…

A: Introduction:- Spectrophotometry is a technique for determining how much light a chemical substance…

Q: A doctor referred a patient to have a SPECT scan using a specific radiotracer. That radiotracer was…

A: Radiotrackers are basically considered to be the molecules that can be linked to the radioactive…

Q: If the total magnification of a microscope is 700X and the ocular lens magnifies by a factor of 10x,…

A: According to the question, the total magnification of a microscope is 700X.…

Q: What is the principle behind a UV-Vis spectrophotometer, and what are its key components, and how…

A: UV-vis spectrophotometry or UV spectroscopy types of absorption spectroscopy or reflectance…

Q: Explain why is absorption used for studying the dyes, while fluorescence is used for studying the…

A: The investigation of various fundamental processes in the subject of life sciences relies on the…

Q: Using a good compound light microscope with a resolving power of 0.3 µm, 10X ocular lens, and a 100X…

A: Using a good compound light microscope with a resolving power of 0.3 µm, 10X ocular lens, and a 100X…

Q: What is the differences between ocular magnification and objective magnification?

A: Introduction  A microscope's objective lens is the one near the sample at the bottom. It's an…

Q: What is Magnification?

A: The instrument microscope aims at visualizing the magnified view of the objects/organisms that are…

Q: How do you know the range in microliters within which a given micropipette can accurately measure?

A: A micropipette is a device used to transfer small volume of samples . It is a vital part in…

Q: Blue light has the shortest wavelength in the visible spectrum. If blue light were used with a…

A: Answer  Blue light has a wavelength approximately near to 500 nano- meter. And it has the shorter…

Q: What is the stationary and mobile phase of spectrophotometry?

A: Introduction A biotechnique based on the principle of quantitative measurement of light intensity…

Q: What is the purpose of setting the spectrophotometer to zero absorbance using a blank solution?

A: Spectroscopy is a procedure utilized for the evaluation, portrayal, and basic investigation of a…

Microscopy

Microscopy is a technical field of study about the use of microscopes to observe small objects like cells and micro-organisms that are not visible to the naked eye. A microscope is used in the field of microscopy, in order to see the object or organism that cannot be seen easily. Microscopes help us to observe the fine structure of a cell and its content.