Why should we use quartz cuvettes for measuring absorbance in the UV range and plastic cuvettes in the visible range?

Q: 5) When you consider the voltammetric techniques, how is polarography different than the others?…

A: 5. THE SHAPE OF THE POLAROGRAPHY IS OF SIGMOID SHAPE IT IS ELECTROANALLY TECHNIQUE THAT IS APPLIED…

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 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: 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: The monochromator in a UV spectrophotometer (read section 10.1 Harvey): Select the correct response:…

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Q: Explain how XPS can be used to identify the compositions of the material in the layers below the…

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Q: A student measures the solvent height on a TLC plate as 11.5 cm. Spot A was measured at a height of…

A: Formula used :-  RF = distance traveled by compound/distance traveled by solvent

Q: How can gold Nanoparticle influence tetrapyrolic macrocylcle like porphyrin in photo dynamic…

A: Here we have to understand how gold nanoparticles (GNPs) are interacting with tetrapyrrolic…

Q: Strain 0.4 0.7 1.2 2.5 Stress (Pa) 360000 830000 1200000 2500000 What is the average molecular…

A: Average molecular weight of chain lengthMw = N1M12+N2M22+N3M32+. . . .N1M1 + N1M2 + N3M3 + ....

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: what the energy of neutron is suitable for crystal diffraction [the atomic spacing between two…

A: Given  The atomic spacing between two bonded atoms is generally around

Q: You are given the following data  : Peak order (n)…

A: Given: Peak order (n)                                                  Diffraction Angle (2q) 1…

Q: A student prepared a series of starch standards using the iodine method and measured the absorbance…

A: In optics, absorbance or decadic absorbance is defined by the common logarithm of the ratio of…

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

A: 1. Solution -

Q: Type of UV transition

A: Type of UV transitions

Q: While using organic solvent like chloroform (CHCl3) in the visible region measurements what cuvette…

A: Glass cuvettes are typically used in the wavelength range of visible light, where as quartz tends to…

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: What should we use a) to measure 5.50 g of CuSO4·5H2O: ______________________ b) To dry CuSO4 over…

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Q: 4. Determine the expected diffraction angle for the first-order reflection from the (113) set of…

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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: Which composite or chemical do you prefer to capture in Beryllium surface mirrors

A: Beryllium mirrors are polished surfaces of beryllium metal which possesses a highly durable and…

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: 1. You know that these types of compounds can be analyzed by either GC or HPLC but you are told by…

A: GC can only apply to  analyse volatile substance while HPLC can handle any soluble compound…

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: The relationship between liquid height and optical rotation

A: To give: A relationship between the liquid height and the optical rotation.

Q: List the desirable characteristics of HPLC detectors.

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Q: The standard graph contains absorbance values greater than 1.00 Is there a positive error, negative…

A: Yes, absorbance greater than 1 is possible, it's not an error. It just means your solution is too…

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: The diagram below represents the layout of a typical single-beam UV-Vis, explain the function of…

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Q: Explain if we need or not a quartz cuvet when doina UV-visible Absorption spectrometry.

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Q: Assuming that the path length of your cuvette is exactly 1.00 cm, calculate the molar absorptivity…

A: We are given ,the spectroscopic data of absorption of KMnO4 at wavelength of520 nm Tube 8.0×10-2…

Q: A gel filtration column has a radius (r) of 0.80 cm and a length (l) of 20.0 cm. Calculate the total…

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Q: For each of the following statements, answer TRUE or FALSE and explain your answer briefly.   It…

A: True Potassium Dichromate solutions (235 - 430 nm)The most widely recognised reference material for…

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: Explain in detail about the X-ray diffraction analytical method with suitable example.

A: X-rays are the types of electromagnetic radiation with a short wavelength which is produced by –…

Q: The best type of stationary phase for separation of negative ions is alumina C18/silica gel…

A: Negative ions are negatively charged ions. Negatively charged ions binds to only positively charged…

Q: 15. A series of five standard copper solutions are prepared, and the absorbances are measured as…

A: A                                            C(PPM)…

Q: Beer’s law plot is prepared by plotting absorbance vs molar concentration of the absorbing species.…

A: The units for the above given as

Q: Items 1 to 5: What is the log10 MW of the following bands? 1. Band 2 А. 0.943 B. 0.963 C. 0.973 D.…

A: 1) log10 MW of band 2  Correct option is C log (9.40) = 0.973   2) log10 MW of band 4  Correct…

Q: 5. How do you calculate the Numerical aperture of an Optic fiber? Find the numerical aperture '0' of…

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Q: improve

A: We know that resolution is a measure of how well two Elution peak can be differentiated in…

Q: CSH9N .4 2114 3295 IR Spectrum (liquid film) 1200 2000 1600 V (cm' ) 4000 3000 800

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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: does a co spot on TLC plate have two Rf values?

A: co-spot in TLC

Q: The polarizability volume of H2O at optical frequencies is 1.5 × 10−24 cm3. Estimate the refractive…

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