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Ions with a single electron such as He+, Li2+, and Be3+, are explain by the H atom wave functions with Z/a0 substituted for 1/a0, where Z is a nuclear charge. The 1s wave function becomes? (r) = 1/vp (Z/a0)3/2e-Zr/a0. Using this result, compute the total energy for the first state in H, He+, Li2+, Be3+ by substitution in the schrodinger equation.
Assuming that all the other quantum numbers can take only the values possible in our world and that the Pauli esclusion principle applies, give the following.
the molar enthalpy of fusion delta h0 of ammonia is5.650 kjmol and the molar entropy of fusion delta s0of ammonia is
Calculate the percent composition and determine the molecular formula and the empirical formula for the carbon-hydrogen-oxygen compound that results when 30.21 g of carbon, 40.24 g of oxygen, and 5.08 g of hydrogen are reacted to produce a product..
the vapor pressure of pure acetone propanone is 266 torr. when a non-volatile solute is added the vapor pressure of
Arrange the bases in increasing order of strengths. I) deuterated ammonia (ND3) Kb = 1.1 × 10?5 II) hydrazine (NH2NH2) Kb = 1.7 × 10?6 III) ammonia (NH3) Kb = 1.8 × 10?5
The following equilibrium pressures were observed at a certain temperature for the reaction. N2(g) + 3 H2(g) 2 NH3(g) PNH3 = 3.1 10-2 atm PN2 = 8.5 10-1 atm PH2 = 3.1 10-3 atm a)Calculate the value for the equilibrium constant Kp at this temperatu..
Why does surface complex formation with a weak acid lead to a relative maximum in the extent of surface complex formation (adsorption) at a pH which is usually near the value of -log acidity constant of the weak acid (pKHA)
A 10.00 mL sample of vinegar is titrated with 0.5062 M NaOH and 16.58 mL is needed to reach the equivalence point. What is the molarity of the vinegar
What volume in milliliters of a 0.5 solution of copper ll sulfate, CuSO4, is needed to react with an excess of aluminum to provide 11g of copper?
Calculate the molar solubility of Fe(OH)2 in a buffer solution where the pH has been fixed at the indicated values. Ksp = 7.9 x 10-16.
The volume of a gas-filled balloon placed underwater at a constant temperature will decrease as its depth below the surface of the water is increased.
A 10 gram sample of the ionic compound NaA, where A is the anion of a weak acid was dissolved in enough water to make 100 ml of solution and was then titrated with 0.1 M HCL
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