Q: After preparing the column, why should the silica get never to dry?
A: Column chromatography is a technique used to spearate organic compounds from a mixture. It works…
Q: As the cell thickness increases, the intensity of the transmitted light also increases. Is this True…
A: Ans - This statement is false. Explain - As the cell thickness increases, the intensity…
Q: The following are the basic components of XRD except-* Source Primary optics Sample Holder…
A: XRD is used to determine the crystal structure of a sample, It is the important characterization…
Q: What is the hottest part of the flame in a bunsen burner when doing a colorimetric flame test?
A: The hottest part of Bunsen burner which is found just above the tip of the primary flame reaches…
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: Mention one disadvantage of a capillary column as compared to a packed column
A: Please find your solution below : Capillary and packed columns are the two types of columns that are…
Q: Which one below is not one of the reasons for adding inorganic additives to organic matrix in…
A: They combine the advantages of the inorganic material (ex: rigidity, thermal stability) and the…
Q: b) Suggest a material (not one already mentioned in the lecture course) that would be an appropriate…
A: MLI (Multi-Layer Insulation) is normally made of multiple reflective films made of polyester and…
Q: What type of ores can be concentrated by magnetic separation method?
A: The magnetic separation process is used when either the ore particles or the gangue connected with…
Q: What are flame tests used to identify?
A: When the electrons of atoms are ground state, the electrons will be present in the lowest possible…
Q: Describe how the melting point range was determined
A: Melting point range is the range of temperature where substance actually melts .
Q: Discuss detail account on fol soft ionization techniques? a. Matrix Assisted Laser Desorption…
A: a. Matrix Assisted Laser Desorption Ionization (MALDI) Used mainly for large biomolecules (Peptides…
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: explain the relationship between the refractice index of a mixture and the molar fractions of the…
A: The detailed solution of your question given below-- Since, we know that how to find mole fraction…
Q: diffrence between roasting and calcination.
A: Roasting:The process in which the ore is heated below its melting point in presence of air to…
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: Which separation technique is based on the affinity of the components with the stationary and moblie…
A: We use various methods to separate component parts from a mixture. By Separation techniques…
Q: The thickness b of very thin film can be determined by the IR interference fringe method. Such…
A: The thickness of polymer material is done by preparing a thin film and observing its infrared…
Q: 3) Figure below shows an x-ray diffraction pattem for single crystal scandium nitride (ScN), having…
A:
Q: give handwritten explanation and answer- Considering the patterns you have identified, estimate the…
A: Here we have to explain the melting point of elements Cadmium, Vanadium and Cobalt-
Q: 4. Determine the expected diffraction angle for the first-order reflection from the (113) set of…
A:
Q: (A) Draw a sketch of the expected chromatrogram (peaks, broadening, relative elution times, etc.)
A: Given: A) To sketch the expected chromatogram.
Q: State if rotation is (+) or (-). Note that all samples were measured using a 1.0 dm tube at 21.5…
A: polarimeter is a optical instrument to measure angle of rotation of a optically active compound.
Q: It is usually recommended to clean the glass surfaces of a refractometer with ethanol or isopropyl…
A: Refractometer is a device that measure the degree to which light changes direction called as angle…
Q: with the aid of a diagram briefly but informatively discuss the principles of the photomultiplier
A:
Q: The bath length in atomic absorption spectrophotometer can usually be changed by.? a. Using higher…
A: A question about atomic absorption spectroscopy, which is to be accomplished.
Q: why is an electro thermal atomizer more sensitive than flame atomizer?
A: The oldest technique used in Atomic absorption spectroscopy is the Flame atomizer.
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: 15. Lenses are coated with thin film to reduce a. Diffraction d. Refraction C. Reflection foronce…
A: Since you have asked multiple question, we will solve the first question for you. If you want any…
Q: What is the advantage of using Buchner filtration in filtering crystals? Q4. Briefly explain how…
A: Solution : Buchner filtering system consists of mainly three parts 1) The Funnel 2) The flask 3) The…
Q: You want to understand the components in your polymer composite as a function of temperature. Which…
A: TGA is abbreviated as thermogravimetric measures the mass of a sample while the sample is heated or…
Q: How can X-ray Diffraction analysis be used in structure and mechanism elucidation? Explain your…
A: X-Ray Diffraction is a non-destructive test method used to analyse the structure of crystalline…
Q: atomic absorption.
A: Atomic absorption spectroscopy is a spectroanalytical technique used for the quantitative…
Q: Define the following terms used in HPLC: (d) sampling loops (e)…
A: The following terms used in HPLC can be defined as :
Q: It is used with samples in MALDI system to help ionization of the sample and then irradiated with…
A: The objective of the question is to select one of the given options based on the given statement…
Q: From the study with UV-Vis spectroscopy, four samples of solutions with different known…
A: Interpretation: To identify the correct statements regarding the given UV-Vis spectroscopy…
Q: an X-ray diffraction pattern for a powder sample of Cr (crystal system: body-centered cubic and…
A: Given: The wavelength of the radiation is 0.1542 nm. The lattice parameter is 0.2884 nm. The value…
Q: Explain 'why glass cells are not used in, UV-spectroscopy.
A: To explain: Why glass cells are not used in UV-spectroscopy.
Q: State if rotation is (+) or (-). Note that all samples were measured using a 1.0 dm tube at 21.5…
A: A polarimeter is a optical instrument to measure angle of rotation of a optically active compound.
Q: Does the amount of radiation (cpm) increase or decrease as the distance between the sorce and the…
A: Amount of radiation between the source and sensor is determine using the inverse square formula:…
Q: In a GC experiment, a 30.00 m long fused silica capillary column produced 150,000 theoretical…
A: Calculate the plate height for the given problem which contains number of plates, length and height…
Q: Why is the monochromator not placed after the TCH lamp when performing an absorbance or…
A: Since the basis for the AAS process is atomic ABSORPTION, the monochromator seeks to only allow the…
Q: (c)Explain why glass cells are not used in, UV-spectroscopy.
A: Uv or ultraviolet spectroscopy is a kind of absorption spectroscopy where light of wavelength…
Q: How is the MnO4- ion different from the Cu2+ metal ion in regards to UV-Vis?
A: UV-Vis Spectroscopy is a technique that is used to analyze how much light a chemical substance…
Q: What is the main limitation of colorimetric measurement technique while identifying the…
A: Interpretation- To tell about the main limitation of colorimetric measurement technique while…
Explain in detail about the X-ray diffraction analytical method with
suitable example.
Step by step
Solved in 3 steps with 1 images
- Analyzing Polymers (Gray Band of Goggles) Interpretation:Explain how XPS can be used to identify the compositions of the material in the layers below the surface. and state if is it possible to perform depth profile analysis using an X-ray tube such as Cu tube?Why should we use quartz cuvettes for measuring absorbance in the UV range and plastic cuvettes in the visible range?
- Describe the following scanning electron microscopy of powder micrographs of Co1. What is the limitation of the sublimation laboratory technique? 2. When can sublination be applied as a process of separation?Compare briefly between flame and graphite furnace in atomic absorption. Mention the advantages and disadvantages.
- Explain etch process removing copper ferrite chloride? Why a mask used? Why is a negative image required? Why anything black removed and anything white will be copper? If two layers, why does top layer have to be mirrored so that ink surface on tracing paper touches photoresist?In the figure below we present two curves. The sample to multilayers of graphene. The technician who obtained the spectra does not know how many layers each curve corresponds to. But you do. answer the following: a. With what technique were the spectra obtained?Analyze both structures of silica gel and alumina and discuss whether these stationary phases are polar or nonpolar. Justify your answer.
- When the D line of sodium light impinges an air-diamond interface at an angle of incidence of 25.0°, the angle of refraction is 10.1°. What is nD for diamond? (Skoog 144) Skoog, Douglas A., F. Holler, Stanley Crouch. Principles of Instrumental Analysis, 7th Edition. Cengage Learning, 20170101. VitalBook file. The citation provided is a guideline. Please check each citation for accuracy before use.You are given the following data : Peak order (n) Diffraction Angle (2q) 1 38.6 2 55.7 3 70.0 Determine whether sample is fcc or bcc or neither. Give reason for your choice.Would a component with a larger Rf value have a higher or lower affinity for the mobile phase compared to a component with a smaller Rf value? Explain, using specific color spots from your data.
