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How would you explain Le Chatelier's Principle if two reactants on one side were a gas and a liquid and the reactants on the other side were a solid and a gas?
You have a 22 g sample of ethanol with a density of 0.7893 g/mL. What volume of ethanol do you have. What mass of lead (density 11.4 g/cm3) would have an identical volume to 14.1 g of mercury (density 13.6 g/cm3).
Calculate the energy of an ultraviolet photon of wavelength 106nm and that of an infrared photon with a wavelength
Hydrazoic acid has a chemical formula of HN3. It is a volatile and toxic acid with a Ka value of 2.5 X 10^-5. Although it might not be the best choice, a student prepares a buffer using HN3 and NaN3 solutions.
An aqueous solution is 1.25 M glucose (C6H12O6). It has a density of 1.08 g/mL the kf value for water is 1.86 degrees Celsius/m. Explain what is the freezing point of this solution
Problem- A reaction calls for you to mix 500 mL of 1.0 M NaCl solution with 250 mL of 3.5 M AgNO3 solution. What mass of NaCl must be dissolved in 500ml of water to make the proper salt solution
Work function. A photon with 250 nm wavelength hits an Au surface (work function 5.28 eV). What's the kinetic energy (in eV) of the ejected electron? What's its speed (in km/s and mph)
ferrocene fec5h52s can be prepared by reacting 3.0 g of fecl2s with an equal mass of cyclopentadiene c5h6l and an
A blight has wiped out the pineapple crop. You are asked to synthesize the ester that is responsible for the scent of pineapple, butyl butanoate. Draw the skeletal structure of the reagents needed to make this scent.
Draw a Lewis structure for each of the following molecules and determine its molecular geometry. What kind of intermolecular forces are present in each substance?
Calculate the mass, in grams, of a single iridium atom (mIr = 192.22 amu ). Express your answer using four significant figures.
Calculate the conditional formation constant Kf for the formation of an EDTA complex with copper (II) at a pH of 5.00, if log Kf= 18.80
Which of the following atoms has the smallest radius? At, Br, Ge, or Pb? Which of the following atoms has the smallest radius? At, Br, Ge, or Pb? The answer is Ge. Based on trends, wouldn't Br have a smaller atomic radius than Ge?
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