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What approaches do we use to treat the inter electron repulsion part of the Hamiltonian for multi-electron atoms including helium and beyond.
At -11.0 °C (a common temperature for household freezers), what is the maximum mass of sorbitol (C6H14O6) you can add to 2.50 kg of pure water and still have the solution freeze? Assume that sorbitol is a molecular solid and does not ionize when i..
Give the structure that corresponds to the following molecular formula and 1H NMR spectrum: C4H10O2: ? 1.36 (3H, d, J = 5.5 Hz); ? 3.32
Calculate rate constant for 1. level reaction where 81% of the matters have already react after 27 seconds.
what is the pkaof the acid, what is the molarity of the original acid solution and what is the molecular weight of the acid
What is the mass of one mole of the gas when the density of a gas is 0.0151 g/mL at 150 degrees Celsius and 1.50 atmospheres?
Construct a Molecular Orbital Diagram showing the various energy levels for an Octahedral Transition Metal Complex (?-bonding only case!). Label (i) all initial metal orbitals
If 45.4g of H2O are produced in the reaction given below, the number of grams of magnesium carbonate used is.?
Consider an apparatus shows gases in two containers and one empty container. When the valves are opened and the gases are allowed to mix at constant temperature, what is the distribution of atoms in each container
The molecular mass of propanoic acid is 75.1 amu. Calculate the molecular mass of methyl ethanoate, an isomer of propanoic acid. Express your answer with appropriate units.
A galvanic cell Zn / Zn2+ // Cu2+ / Cu generates a current of 4.00 Amperes for 1.00 hour. The cathode increases in mass by 10.0g . If charge on an electron is 1.602 x 10-19 coulombs/ electron.
Calculate the change in entropy that occurs when 18.66 g of ice at -14.6°C is placed in 54.05 g of water at 100.0°C in a perfectly insulated vessel.
What was the percentage by mass of Mg(OH)2 in the original sample? [Hint: When Mg(OH)2 or Al(OH)3 reacts with HCl(aq), the products are a chloride salt, water and CO2(g). Assume that all of the CO2(g) leaves the solution without reacting.]
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