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Suppose that a linear Na23 molecule could be formed by combining the 3s orbitals on each atom into delocalized MOs. How many nodal planes are in the highest occupied molecular orbital (HOMO) of this molecule
Solid iron reacts with chlorine gas to produce iron(III) chloride. If 10.0 grams of iron reacts with excess chlorine gas and 18.5 grams of iron(III) chloride is produced
The constant-pressure heat capacity of a sample of a perfect gas was found to vary with temperature according to the expression cp/(J K?1) = 20.17 + 0.3665(T/K). Calculate q, w, ?U, and ?H when the temperature is raised from 48°C to 220°C at the f..
If 8686 C of charge is passed through molten magnesium chloride, calculate the number of moles of Mg(l) produced
A baby with a severe bronchial infection is in respiratory distress. The anethetist administers heliox a mixture of helium and oxygen with 92.3 % by mass O2. What is the partial pressure of oxygen being administered to a baby if atnospheric pressu..
Calculate the pH of a solution that is 1.20×10^?3 M in HCl and 1.00×10^?2 M in HClO2. Express your answer using three decimal places
If the methane contained in 4.00 L of a saturated solution at 25 C was extracted and placed under STP conditions, what volume would it occupy?
Write the eqn for each large-extent B/L A/B rxn which occurred on making this mixture. Do this by starting with the rxn that involves the strongest B/L A with the strongest B/L B. Label this rxn (i). Continue writing eqns in this "strength order" ..
A sealed bulb with a gas is immersed in an ice bath, and its pressure is measured as 444 mmHg. Then the same bulb is placed in a heated oven, and the pressure is measured as 648 mmHg. What is the temperature of the oven in celsius
calorimetry can be used to find heats of combustion. suppose a calorimeter helps someone to determine that 4032 kj of heat is released during the combustion of 88.0 grams of propane, C3H8 (44.0 g/mol).
Calculate the weight percent composition of the mixture (hexane, heptanes, hexanol, and toluene). b. Calculate the mole percent composition of the mixture.
A laser pulse with a wavelength of 532 nm contains 3.85 mJ (milliJoule) of energy. (a) Calculate the frequency and energy per photon of the laser light. (b) How many photons are in the laser pulse? (c) What is the energy in kilojoules per mole (kJ..
Determine the concentration of the sulphuric acid (H2SO4) solution If It takes 58 mL of 0.124 M potassium hydroxide(KOH) to neutralize 41.5 mL of sulphuric acid( H2SO4) solution.? Express your answers in units of moles/liter
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