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!
1)A hypothetical neutral atom has 77 electrons. One of its electrons is held in circular orbit of radius r = 0.244 nm by electrostatic attraction between the electron and the nucleus. Assume: the interaction between electrons is negligible. Calculate the speed of orbit of this electron in m/s.
2)Assume the charge in the nucleus of an atom is evenly distributed through the nucleus.
In a hypothetical 56 electron neutral atom, the radius of the nucleus is 5.93 pm. Find the magnitude of the electric field at the surface of this nucleus, in N/C.
3)Two positive point charges are fixed on the x-axis: q1 is at the origin and q2 = 4.73q1 is at (14.6 cm, 0). You now place a third charge Q on the x-axis at (x,0) and it remains at rest. Find x in cm.
You are asked to prepare an aqueous solution of ethylene glycol (HOCH2CH2OH) with a mole fraction of 0.142.
the lethal inhalation does of sarin for a 200lb person has been determined to be 0.0015 mg. determine the ld50 of sarin
What is the total electronic energy
If a 78.1 mL of a solution of oxalic acid 8.38x10^22 carbon atoms, what is the concentration of H2C2O4 in the solution
Make three-dimensional drawings of the following molecules, and predict whether each has a dipole moment. If you expect a dipole moment, show its direction. c) CH2Cl2 d) H2Cdouble bonded to CCl2
Suppose that you obtain 1.0 g of salicylic acid from the hydrolysis of 1.3 mL of methyl salicylate. Calculate your percent yield.
if 31.82 g of a metal oxide reacted with excess carbon and 4.08 l of co2 formed at 100 c and 1.5 atm what is the
What is the airborne radioactivity concentration? Using 10 CFR 20, if the particles are composed of cobalt oxide, how many DAC does this represent?
the normal respiratory rate for a human being is 15.0 breaths per minute. the average volume of air for each breath is
One of the chair conformations of cis-1,3-dimethylcyclohexane is more stable than the other by 23.1 kJ/mol. Use this to estimate the energy cost of a 1,3-diaxial interaction between two methyl groups.
the fluorocarbon c2cl3f3 has a normal boiling point of 47.6 celsius. the specific heats of c2cl3f3l and c2cl3f3g are
What is the expected boiling point of a solution prepared by dissolving 5.83 g of sodium iodide (NaI) in 59.2 g of water (H20)? For water, Tb = 100.00 degrees Celsius and Kb = 0.512 degrees Celsius m-1. The answer is 100.675. Please show a step by..
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