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(a) Why does the Bohr model of the hydrogen atom violate the uncertainty principle?
(b) In what way is the description of the electron using a wave function consistent with de Broglie's hypothesis?
(c) What is meant by the term probability density? Given the wave function, how do we find the probability density at a certain point in space?
The wave function for the ground state of the quantum harmonic oscillator
The remaining white solid in the filter paper has ammonia water poured through it. This dissolves all of the precipitate in the filter paper. The new filtrate is treated with HCl, giving a white precipitate. What metal ion or ions are in the solut..
What is the enthalpy change for the neutralization reaction of 1 mol of CsOH in kJ?
Suppose that 25 g of each of the following substances is initially at 28.0degrees C. What is the final temperature of each of the following substances upon absorbing 2.35 kJ of heat.
Explain what volume of water (in mL) must be added to 450.0mL of 0.2074 M acid to make the concentration exactly 0.2000 M
A 240L kiln is used for vitrifying ceramics. It is currently operating at 1025°C , and the pressure is 1.100atm . How many moles of air molecules are within the confines of the kiln?
Calculate the pH of a 1 MNH4Cl solution. Express your answer using one decimal place.
Calculate the Gibbs Energy of reaction at 298 K for the following using 2 methods. First use enthalpies and entropies of formation and DrGo = DrH o - TDrS o to calculate DrG o.
NH3 is a weak base (Kb = 1.8 × 10-5) and so the salt NH4Cl acts as a weak acid. What is the pH of a solution that is 0.049 M in NH4Cl
Is the efficiency of a carnot engine affected by the heat capacity of the gas. i.e if the heat capacity varies with temperature.
B)if water is added to 150ml of a 1.2M KCL solutionuntil the volume is 150 ml what is the new molarity?
Nickel nitrate and potassium carbonate react to form nickel carbonate and potassium nitrate. How many milliliters of 0.55M Ni(NO3)¬2 are needed to react with 85 mL of 0.25M K2CO3?
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