(i)Write the specific type of instrument as shown in figure 1.?(ii)How are the ions produced in the ionization chamber accelerated?(iii) What two properties of the ions determine how much they are deflected by the magneticfield?(iv) Why is it important that there is a vacuum in the instrument?StoragechamberGas inletManometerTo vacuumlonising´electronbeamCollectorResolving slitMolecular-leak lon source60°OscillographAccelerating -regionDC|amplifier uhlMassMagnetAnalyser tubespectrograph

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Answered: (i) Write the specific type of…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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1. State the difference between transmittance, absorbance, molar absorptivity, and fluorescence. Which one(s) is proportional to analyte concentration?
You are working in a laboratory that makes frequent use of a scanning tunneling microscope (STM) to study surfaces of materials. The current through the tip of an STM (see figure) is very sensitive to differences in the width of the gap between the tip and the sample surface. Assume the transmission coefficient for the electron falls off exponentially in this direction with a decay length of 0.100 nm, that is, with C = 10.0 nm¯¹ in T = e−2CL. Your supervisor asks you to determine the ratio of the current when the STM tip is 0.498 nm above a surface feature (I) to the current when the tip is 0.526 nm above the surface (I2). + (i)
What makes the electron beam in magnetic deflection mass spectrometer?
5. Describe the principle on which each of the following GC detectors are based: (a) flame ionization, (b) electron capture,
In a mass spectrometer, two beams of singly ionized isotopes of uranium 23592U and 23892U are injected with velocity 1.4*105m/s into a magnetic field of strength 0.7 T normally. Compute the distance d between the two trace lines of the isotopes after they complete one semi-circle. (Given: masses of the isotopes are m235 = 3.9*10-25 kg and m238 = 3.95*10-25) a) 1.26 cm b) 0.63 cm c) 0.32 cm d) none of these.
(a) What is the main difference between a UV-Vis spectrophotometer and a spectrofluorometer? (b) What is the main advantage of using a spectrofluorometer in quantitative analysis?
The quantum yield of light-induced chemical reactions (called photochemical reactions) measures the efficiency of the process. The quantum yield, ϕ, is defined as:ϕ=numberofreactioneventsnumberofphotonsabsorbed . Suppose a quantum yield for the reaction CH3X→CH3+Xis ϕ= 0.95. A cuvette containing a solution of CH3Xis irradiated with 280-nmwith a power of 885 mWfor 10.0 minutes. Part A Assuming total absorption of the light by the sample, what is the maximum amount (in moles) of CH3Xthat breaks apart?Express your answer to two significant figures. nothingmolCH3Xm o l C H 3 X actual
A solution containing 3.75mg/100 ml of analyte (X) 220 g/mol has a transmittance of 39.6% in a 1.00 cm cell at 480 nm. Calculate a) The molar absorbtivity of X. b) The fraction of light transmitted from a solution three times the mentioned concentration.
An acceleration voltage of 15.0 kV is used to accelerate ions into the 1.48 m flight tube of a time-of-flight (TOF) mass spectrometer. The frequency at which spectra can be recorded is dependent on how long it takes the slowest ion to travel from the source to the detector. If you wish to scan up to m/z 13039, at what frequency (spectra/s) could spectra be recorded if a new spectrum begins each time the slowest ion reaches the detector? frequency: spectra/s
1. Plot the emission intensity vs. wavelength for the four samples on one graph. Be sure to include a legend and axes labels. Attach and submit the graph in the space below. Inensity vs Wavelength PET 3 0.12 0.1 0.08 0.0G 0.04 0.02 215 0 100 200 i. CuCl2- ii. NaCI iii. CaCl₂- iv. KCL 300 400 500 600 CUAZ NACI CACIZ ко 11 Chart Title Report: Experiment 3 7:00 800 900 1000 39 Spring 2024 From your spectra above, write down the emission wavelengths (i.e. the peak wavelength(s)) for each sample. Note: There may be only one OR multiple peaks. Include all of them.
Timer Course Contents » ... » Data, Statistics, and Graphing » Graphing Absorbance (Optical Density) versus Molar Concentration The following table contains some data showing the effect of molar concentration of a solution on the absorbance (optical density) reading from a spectrophotometer. No ↑ Does the solution in your graph follow Beer's Law? Concentration (M) Submit Answer Incorrect. Tries 37/99 Previous Tries 0.13 0.28 0.43 0.58 0.73 0.88 1.03 1.18 1.33 1.48 What is the concentration of a solution that has an Optical Density of 0.21? (Give units in your answer). 0.21M You are correct. Your receipt no. is 155-7520 ? What is the concentration of a solution that has an Optical Density of 0.91? (Give units in your answer). 0.81 M Previous Tries Optical Density To assist in graphing, right click on this excel spreadsheet file, save it to your computer, and open it in Excel. Enter the above data in the appropriate spaces in the spreadsheet. Select the graph that is created, and print…
A 0.0140 M solution of a certain analyte exhibits 49.8% T' at a wavelength of 280 nm. What will the percent transmittance be for a 0.0252 M solution of the same analyte? Assume the pathlengths for each measurement are equal.

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