Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
In a technique used for surface analysis called auger electron spectroscopy (AES), electrons are accelerated toward a metal surface. These electrons cause the emissions of secondary electrons-called auger electrons-from the metal surface. The kinetic energy of the auger electrons depends on the composition of the surface. The presence of oxygen atoms on the surface results in auger electrons with a kinetic energy of approximately 485 eV.
What is the de Broglie wavelength of this electron?
[KE = 1/2mv^2; 1 electron volt (eV) = 1.602 x 10^-19 J]
lead (II) sulfide (PbS) has a Ksp of 3.0 x 10^-28 . what is the concentration of lead (II) ions in a saturated solution of PbS
Comment on whether these are made of the same materials or not, and explain your response. The density is different in each, so they are made of different materials.
When methanol, CH3OH, is dissolved in water, a nonconducting solution results. When acetic acid, CH3COOH, dissolves in water, the solution is weakly conductiong and acidic in nature. Describe what happens upon solution dissolution in the two cases..
When 2.00 g of NaOH is added to 50.0 ml of 1.0 M HCl solution in a constant pressure calorimeter, the temperature increased by 13.1oC. Calculate the heat of neutralization in KJ/mol
A chlorine atom can occupy one of the nine possible sites. When a bromine is added to the system it can occupy one of hte eight sites not already occupied by the chlorine
What is the percent yield of a reaction in which 41.5 g tungsten (VI) oxide is combined with excess hydrogen gas to produce metallic tungsten
What is the limiting reactant when 4.5 moles of aluminum react with 6.7 moles of oxygen gas? Unbalanced equation: Al + O2 → Al2O3
How many joules of energy are necessary to heat the steam from 100.0 degrees Celsius to 114.0 degrees Celsius if the specific heat of steam is 2.01J/g degrees Celsius? Write your answer in 3 significant digits.
A 4.50G sample of LiCl at 25.0 degree celcius dissolves in 25.0 mL of water also at 25.0 degree celcius. The final equilibrium temperature of the resulting solution is 60.8 degree celcius. What is the enthalpy of solution of LiCl expressed in kilo..
A solution has a volume of 2.0 L and contains 36.0 g of glucose. If the molar mass of glucose is 180g/mol, what is the molarity of the solution? Answer must be expressed in dimension analysis.
Estimate the final temperature of the gas if 58g of air at 25 degrees Celsius and 50 bar undergoes a Joule-Thomson throttling to a final pressure of 1 bar. Assume the Joule-Thomson coefficient is independent of temperarture and pressure.
Given the concentration of either hydrogen ion or hydroxide ion, use the ion product constant of water to calculate the concentration of the other ion at 298K.
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd