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For the first ionization energy for an N2 molecule, what molecular orbital is the electron removed from?
The blade of an ice skate is ground to a knife edge on each side of the skate. If the width of the knife edge is 0.001in., and the length of the skate in contact with the ice is 3 in., calculate the pressure exerted on the ice by a 150lb man.
Problem- What is the percent yield of the solid product when 17.14 g of iron(III) nitrate reacts in solution with excess sodium phosphate and 5.336 g of the precipitate is experimentally obtained
Explain why the benzyl carbocation is more stable than the allyl carbocation?
A buffer solution consists of 1.5 mol/L of sodium acetate and 1.5 mol/L of acetic acid. The Ka of acetic acid is 1.8x10^-5. What's the pH of the buffer
A solution contains 0.10 M of iodide ion I-, and 0.10 M Carbonate ion CO3 2-. If solid Pb(NO3)2 is slowly added to the solution, which salt would precipitate first, PbI2 or PbCO3
Write about the polymerase chain reaction, indicating the basis for the amplification of DNA by the technique.
If 329mL of hydrogen gas is collected over water at 25 Celcius at a total pressure of 748mm Hg , how many grams of { Zn reacted
Assuming the volumes of all gases in the reaction are measured at the same temperature and pressure, calculate the volume of water vapor obtainable by the explosive reaction of a mixture of 725 mL of hydrogen gas and 325 mL of oxygen gas.
Draw a dilution scheme that would produce countable plates if the original culture has 4,730,000 viable cells/mL.
Write the expression for the equilibrium constant, Kc, for the following chemical reaction.
Suppose .050 moles of a substance reacts in 25.0 grams of water. If the water temperature goes from 22 degrees C to 26 degrees C, how much heat was given off. How much heat would be given off if one mole of the substance reacted
At a certain temperature the vapor pressure of pure benzene and pure toluene are 380 torr and 130 torr, respectively.
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