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The wavefunction inside a long barrier of height V is f =Ne^(-kx). Calculate (a) the probability that the particle is inside the barrier and (b) the average penetration depth of the particle into the barrier.
Calculate the heat evolved in kilojoules by the formation of the solution. Calculate the heat evoled per mole of sulfuric acid. Use n(changeH) = -(mCchangeT)
A 20.0-mL sample of 0.800 M HBr solution is titrated with 0.800 M NaOH solution. Calculate the pH of the solution after the following volumes of base have been added.
We dissolve 2.45g of sugar in 200.0g of water. What is the mass percent of sugar in the solution
for ammonia, Kb is 1.8*10^-5, to make a buffered solution with pH of 10.0, the ratio of [NH4+] to [NH3] must be
If 15.0 mL of 4.5 M NaoH are diluted with water to a volume of 500.0 mL, what is the molarity of the resulting solution? Please include explanation, balanced equation, and calculations.
If 3.70 mol of ethane, C2H6, undergo combustion according to the unbalanced equation given below, how many moles of oxygen are required? C2H6 + O2-> CO2 + H2O
What is the concentration of Br- (aq) in a solution prepared by mixing 75.0ml of 0.62M iron (III) bromide with 75.0ml of water? Assume volumes are additive.
A buffer system contains .55 M acetic acid and .47 M sodium acetate. What is its pH? The Ka for acetic acid is 1.8x10^-5.
The activation energy for a particular reaction is 64 kJ/mol. By what factor will the rate constant increase when the temperature is increased from 50 oC to 80 oC
Calculate the pH of the acid solution before any NaOH has been added. Calculate the pH of the analyte after 10.00mL of 0.100 M NaOH has been added. Calculate the pH of the analyte of the equivalence point. Calculate the pH of the analyte after add..
If you are given a Beer's Law plot and a value for the absorbance of an unknown solution how will you determine the concentration of the unknown solution
How do you rationalize the ordering of the following pairs in the spectrochemical series
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