1.give some precautionary measures in the use of microscope

Q: A student measures the absorbence of an unknown after placing a sample in a cuvette which contained…

A: Given scenario is, A student measures the absorbence of an unknown after placing a sample in a…

Q: how are magnetic field line models helpful?

A: The representation of magnetic field lines is very useful in visualizing the strength and direction…

Q: Which area of Analytical Chemistry do you think is the most applicable as a Medical Technologist

A: Analytical chemistry studies and uses instruments and methods used to separate, identify, and…

Q: 2. In one of the experiments this semester we will need to create a graph, find the best-fit slope…

A:

Q: Aqueous ions move at 1.0 m/s through a bloodstream of a person standing near a large magnet. The…

A: Solution -

Q: How does the number of carbon atoms correlate to the refractive index? How about in the case of…

A: The refractive index, represented by symbol n, is the velocity of light in vacuum divided by the…

Q: ) The refractive index (μ) of water is found to have the values 12.9,12.5,12.3 and 11.8. Calculate…

A: The question is based on the concept of analytical treatment. we have been given refractive indices…

Q: What types of samples can be analyzed by IR? How are substances that are opaque (not transparent)…

A: IR spectroscopy is used for the characterization of solid,liquid, or gas samples. Material…

Q: Question 3 Why is it necessary to run a blank before measuring the absorbance of a sample? O To…

A: Why is it necessary to run a blank before measuring the absorbance of a sample ? The reason is given…

Q: How do you call the wavelength where a solvent is no longer transparent ? cutoff O invisible visible…

A: Visible light has range of Wavelength  in between 400 to 800 nm . Wavelengths shorter than 400 nm,…

Q: a) Find the Linear density for FCC (111) direction assuming the atomic radius R-0.230mm b) Find the…

A: Solutions                       Given that A) Find the linear density for FCC B) Find the linear…

Q: Solution.   Vol. of A solution (mL)  [methyl red], M   Absorbance               1…

A: concentration of methyl red (x axis) ) in terms…

Q: You determine the Mg concentration of a water sample using atomic absorption spectroscopy (AAS). The…

A: On dilution, the concentration of the solution decreases. The product of molarity and volume gives…

Q: The part of SEM that is responsible for the production of electrons. * Electron guns Condenser lens…

A: SEM ,TEM ,XPS are the analytical techniques used for surface analysis of samples.

Q: A temporary magnet will O a O b never have a magnetic field have only a weak magnetic field have…

A: C)  have magnetism only within a magnetic field.

Q: what are the applications of Atomis Force Microscopy and explain each

A: Atomic force microscopy (AFM) is a sub-nanometer scale resolution that has  surface scanning…

Q: Assume that you have an "X" solution that you do not know its concentration. But you have other X…

A: Absorbance of a solution is given with the help of lambert-beer's law which is given as follows; A =…

Q: Why should we use quartz cuvettes for measuring absorbance in the UV range and plastic cuvettes in…

A: Cuvettes, a small tube-like container that is transparent and sealed at one, open at the other is…

Q: When the D line of sodium light impinges an air-diamond interface at an angle of incidence of 25.0°,…

A: The solution is given below -

Q: For a simple distillation: Compound Number of carbon atoms Experimental refractive index…

A: When an incident light passes from one liquid medium to another liquid medium, the light bend…

Q: 1. Calculate a reflective loss when a 589 mm beam of radiation light passes through a piece of…

A: 1. Solution -

Q: state if true or false 1. Prior to a fixed point or wavelength reading, spectral scanning can be…

A: A spectrophotometer is an instrument which measures the absorption of light at each wavelength of…

Q: In this lab exercise, you will make use of Beer's law (also called Beer-Lambert Law) which is stated…

A: Beer-Lambert law: According to this law, the absorption of radiation by the substance depends on the…

Q: Type of UV transition

A: Type of UV transitions

Q: For A crystal violet hydroxide lab, The procedure requires to set the wavelength at 595 nm. Why do…

A:

Q: There are three magnetic poles on magnets. O True O False

A: An object that produces a magnetic field is known as a magnet.

Q: In determining the amount of copper and the identity of the copper compound in the unknown sample, a…

A: As 100 mL solution contains 120.8 mg sample so, 5 mL       ,,             ,,          (120.8 mg * 5…

Q: 10. In what ways can a refractive index be used to characterize a liquid sample? 11. Describe how to…

A: A question based on properties of liquids that is to be accomplished.

Q: Mark the beam path with normal refraction, hyperopia and myopia What lens (diffusing or collecting)…

A:

Q: Find Five candidates of RR Lyrae type with magnitude under +11?

A: RR lyare  With periods ranging from a few hours to two days and optical brightnesses that normally…

Q: what are the applications of Atomic Force Microscopy and explain each

A: Atomic Force Microscopy is a technique which is used to image different type of surfaces like…

Q: Intensifying screens can be placed on both sides of the X-ray film (double-sided) or on one side…

A: Intensifying screens can be place in x-beam film in light of the fact that the two sides of x-bar…

Q: If Johnny Joestar measured the amount of light absorbed by the analyte in a sample to determine its…

A: There are various methods use for quantitative analysis of compound in analytical chemistry. Example…

Q: Explain why the zinc ion should not interfere with absorbance measurements of the copper ion.

A: Interference of Zinc ion in the absorbance measurements of Copper ion.

Q: From the following options what's the reason why we use absorption and not percent transmittance for…

A: We use absorption and not percent transmittance for UV-Vis spectrophotometry because The absorption…

Q: Interpret IR data

A: A question based on IR spectra that is to be accomplished.

Q: 100 3000 610 50 1374 1381 1472 2875 3210 2960 1039 D+ 4 D00 3000 2000 15 DO 1000 5DO HAVENUMBERI -…

A: The characteristic peaks are the frequency range of the given compound on the spectrum. As peaks…

Q: Why must solutions with high concentrations be diluted prior to analysis via Beer's Law? A. The…

A: Answer= option 1 (the relation between absorbance and concentration not linear at high…

Q: Monomer-dimer formation can affect the absorbance measurements using Beer's law, it is an example…

A: Real deviation from Beer's law occur if the concentration of solution is higher than 0.01 M.…

Q: A lens (f-number) has following measurements: diameter is 5.4 cm and focal length is 17.6 cm.…

A: The f-number of an optical system (such as a camera lens) is the ratio of the system's focal length…

Q: There are three magnetic poles on magnets.

A: Difine a number of of magnetic poles of magnets

Q: The basic spectrophotometer is composed of four components. Which component listed below is NOT one…

A: Spectrophotometer is an instrument which is used in measurements of absorbance and transmittance.

Q: For the experimental data used in this lab, why was it okay to use the absorbance values instead of…

A: In experiment to determine the concentration of any specie, the value of absorbance for the solution…

Q: undiluted 0.715 1:4 dilution ratio 0.447 1:9 dilution ratio 0.321 a. Calculate the slope,…

A: First plot the graph of absorbance vs concentration . Then find the equation for graph using Excel.

Q: For my lab I had to find the unknown concentration of a solution. I found wavelength max of the…

A: The observed unknown sample concentration is not lying on the graph because the concentrations of…

Q: In determining the amount of copper and the identity of the copper compound in the unknown sample, a…

A:

Q: What causes light refractics, what does the index of refraction (n) express

A: Refraction of light is resulted by the variation of velocity in various medium by which we can see…

Q: The spectroscopic data in the table is generated with five solutions of known concentration.…

A:

Q: Of particle size techniques, which technique can identify the 3-D dimensions of the particles? The…

A: A multiple choice question based on introduction to chemistry that is to be accomplished.