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In an unsymmetrical alkene, the boron atom adds predominantly to the least substituted carbon atom. Offer a reasonable explanation to account for the unequal ratio attained (2% of one isomer and 98% of the other isomer) in the reaction of BH3 (and the solvent diglyme) with 2-methyl-2-butene.
Molten carbonate fuel cells fueled with H2 convert as much as 60% of the free energy released by the formation of water from H2 and O2 into electrical energy. Determine the quantity of electrical energy obtained from converting 1 mole of H2 into H..
The electron in a hydrogen atom occupies a 6p orbital. What is the longest wavelength of light that can be emitted by this atom? Give answer in nanometres, nm
What is the value of Delta S when 2.7g of CH4 is compressed from 29.0 L to 18.0 L at a constant temperature of 100 C?
The concentration of Mg2+ in seawater is 0.052 M. What is the pH when 95% of the magnesium ions will be precipitated as the hydroxide salt. (Ksp, Mg(OH)2 is 8.9 x 10-12).
Determine the energy of an electron in the given quantum level of each of the following ions. (Hint: Each of the ions has a different number of protons
What two properties of ATP make it ideally useful for a form of energy storage in cells? Describe why the hydrolysis of ATP is highly exergonic (give at least two reasons).
A solution of salt (molar mass 90 g mol -1) in water has a density of 1.29 g/mL. The concentration of the salt is 35% by mass.
Describe how you would prepare each of the following aqueous solutions. - 230 g of a solution that is 0.60 molal in Na2CO3 starting with the solid solute.
How many grams of hydrogen can be theoretically formed. How much of which reactant will be left after the reaction is over
What must the heat rating of the heater, in kJ/min, to accomplish this? Ignore the heat that goes to the heat cup itself. The density of water is 0.997 g/ml.
What is the osmotic pressure of a solution made from dissolving 90.0 g of glucose, rm C_6H_{12}O_6, in 650 mL of water at 14.0{^circ}C.
What is the value of Ksp for Ag2SO4 if 5.54 g is soluble in 1.00 L of water?
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