In a 1911 paper, Ernest Rutherford said: In order to form some idea of the forces required to deflect an alpha particle through a large angle, consider an atom containing a point positive charge Ze at its center and surrounded by a distribution of negative electricity, – Ze uniformly distributed within a sphere of radius R. Derive an expression for the magnitude of the electric field at the center of the atom. - Express your answer using the parameters +Ze and -Ze.

In a 1911 paper, Ernest Rutherford said: In order to form some idea of the forces required to deflect an alpha particle through a large angle, consider an atom containing a point positive charge Ze at its center and surrounded by a distribution of negative electricity, – Ze uniformly distributed within a sphere of radius R. Derive an expression for the magnitude of the electric field at the center of the atom. - Express your answer using the parameters +Ze and -Ze.

Appl Of Ms Excel In Analytical Chemistry

2nd Edition

ISBN:9781285686691

Author:Crouch

Publisher:Crouch

Chapter4: Least-squares And Calibration Methods

Section: Chapter Questions

Problem 8P

See similar textbooks

Similar questions

Use the data in Figure 4.8 to estimate the ratio of radiation intensity at 10,000 Å (infrared) to that at 5000 Å (visible) from a blackbody at 5000 K. How will this ratio change with increasing temperature? Explain how this change occurs.
What are transference numbers and how are they related to ionic mobilities?
The molar absorptivity for aqueous solutions of phenol at 211 nm is 6.17 × 103 L cm-1 mol-1. Calculate the permissible range of phenol concentrations if the transmittance is to be less than 85% and greater than 7% when the measurements are made in 1.00-cm cells.
Two points that lie on the line of best fit for a ln k versus 1/T graph are (0.00412, -1.34) and (0.00649, -4.99). What is the natural log of the frequency factor (ln A)?
Predict relative intensities at m/z 36, 37, and 38 for HCl. Let the intensity of the molecular ion be 100 and disregard contributions ,0.1%.
1) List three factors which would contribure to departure from Nernstian behaviour. 2) Provide as many error sources in calibration of the ISE (up to five).
In an experiment to determine the specific surface area of porous carbon using the Langmuir modal, 12.0 cm3 nitrogen gas is absorbed (at the) nitrogen partial pressure of 11.1 kPa. The volume corresponding to that complete coverage was observed to be 105 cm3 and 5 cm3. Calculate the kinetic equilibrium constant of absorption and desorption in this case.
In an investigation of the influence of experimental variables on detection limits in electrothermal AAS, Cabon and Bihan found several factors to be significant in the optimization of the method. List six of these factors, describe in detail the physical basis for each factor, and discuss why each isimportant.
Explain (with the aid of one or more equations) why a LOWER selectivity coefficient for an interfering ion means an ISE is actually MORE selective for the target ion.
The following calibration data were obtained by an atomic absorption spectrophotometric (AAS) method for the determination of mercury in an herbal product. (show complete solution) 1. What is the detection limit for the method? 2. What is the limit of quantitation for the method?
Explain why small uncertainties in the measured potential of ISEs can cause large errors in the determined analyte concentration.