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Why the presence of a phenyl group causes loss of stereospecificity in this alkene bromination?
Calculate the concentration of (C6H6O6)2- in an aqueous solution of .0619 M ascorbic acid, H2C6H6O6 (aq).
This wavelength is in the x-ray region of the electromagnetic spectrum. The purple dot is a representation of the x-rays hitting the video camera. Change the Electric Field and Magnetic Field to det
Write the equations that represent the first and second ionization steps for selenic acid (H2SEO4) in water.
Why does it take significantly stronger magnetic and electric field strengths to move the beam of alpha particles compared with the beam of electrons (beta particles)
Start Virtual ChemLab and select Alpha and Beta Particles from the list of assignments. The lab will open in the Quantum laboratory. What source is used in this experiment? Drag your cursor over the
The nuclear mass of 141Ba is 140.883 amu. Calculate the binding energy per nucleon for 141Ba.
Refrierators are usually kept at about 5 degrees Celcius, while room temperature is about 20 degrees Celcius. If you were to take an "empty" sealed 2 liter soda bottle at room temperature and place
Chemists studied the formation of phosgene by sealing 0.73 atm of carbon monoxide and 0.98 atm of chlorine in a reactor at a certain temperature. The pressure dropped smoothly to 1.32 atm as the sys
A balloon was filled to a volume 2.50 L when the temperature was 30.0 degrees C. What would the volume become if the temperature dropped to 11.0 degrees C
According to Charles Law, for a fixed quantity of gas at constant pressure, which of the given quantities is constant? V/T, VXT, or V+T
Where do i draw the line between a good leaving group and an excellent leaving group(sn1)? Do i draw the line for a excellent leaving group at all halides
In an automobile engine, at the end of the upstroke the piston is at its maximum height in a cylinder of exact dimensions. At this time, a precisely measured mixture of fuel and oxidant ignites to f
The energy difference of 3.8 kJ/mol between gauche and anti butane corresponds to an equilibrium constant, Keq, of approximately 1.9. Calculate the percentage of each conformer at equilibrium.
Mercury (I) cyanide is a severely toxic substance with a Ksp of 3.8x10^-40. If the following solutions are combined, what is the final concentration of cyanide? i. 500. mL of a 0.47 M Hg2(NO3)2 solu
The solubility of lanthanum iodate at a certain temperature is 9.55 x 10^-4. What is the Ksp of this compound at that temperature
An aqueous solution at 25 °C is 2.28 x 10^-7 M in CuNO3 and 5.03 x 10^-7 M in AgNO3. What is the lowest cyanide concentration at which a precipitate appears
What concentration of [Cu2+] is in a 1.0 L solution that is 0.0010 M CuCl2 and 0.10 M NH3. The formation constant of [Cu(NH3)4]2+ = 1.7 x 10^13.
What mass of ammonium chloride (mm = 53.49 g/mol) must be added to 335 mL of 0.559 M NH3 to create a solution of pH 8.20
Silver sulfide is the tarnish that forms over time on polished silver. If a saturated aqueous solution of it at a certain temperature has a [Ag+] = 4 x 10^-17, what is the solubility product of silv
Find the pH during the titration of 20.00 mL of .1000 M butanoic acid CH3CH2CH2COOH (kA = 1.54E-5), with .1000 M NaOh solution after the following additions of titrant. a. 20.40 mL b. 26.00 mL
If it takes 3 breaths to blow up a balloon to 1.2 L, and each breath supplies the balloon with 0.060 moles of exhaled air, how many mols of air are in 3 liters
A room temperature aqueous solution is 0.10 M in zinc acetate, 0.50 M in strontium acetate and 15.2 M in nickel (II) acetate. At what concentration of carbonate does a solid first appear in the solu
Consider the reaction N2(g) + 3 H2(g) <=> 2 NH3(g), which is exothermic as written. What would be the effect on the equilibrium position of adding a suitable catalyst