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Which of the following reactions best describes the acid-base properties of acetic acid (HC2H3O2) in aqueous solution?
2 components mixture give the tlc shown when 1:1 mixture of hexanes:ethyl acetate is used as the developing solvent which components is more polar and how can you tell?
A 48.3ml sample of gas in a cylinder is warmed from 22C to 87C. What is its volume at the final temperature?
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
Draw the structures of propene (propylene) and tetrafluoroethene. Draw the basic repeating units when each of these compounds polymerizes. Describe some practical uses of each polymer.
Suppose 110. mmol of electrons must be transported from one side of an electrochemical cell to another in minutes. Calculate the size of electric current that must flow.
derive the irreducible representations for the normal vibrations of XeF4 and determine which are IR active, which are Raman active
It takes 54.0 J to raise the temperature of an 10.3g piece of unknown metal from 13.0C to 25.0 C. What is the specific heat for the metal?
exhibits Kc = 0.0302 at 342 K. If the standard enthalpy change for this reaction is 10.0 kJ/mol, what is the value of Kc for the following reaction
The two products formed are 2-methyl-1-hexene (19%) and 2-methyl-2-hexene (81%). Show the chemical equation for this reaction. Explain fully why 2-methyl-2-hexene is the major product.
How many molecules of ethanol C2H5OH are present in 135 g of ethanol? The density of ethanol is 0.789 g/cm3?
Determine the dissociation constants for the following acids. Express the answers in proper scientific notation where appropriate
if a container of nitrogen, oxygen, carbon dioxide has a pressure of 2.00atm and the partial pressure of O2 is 312torr,
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