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It has been estimated that about 3.4 x 1013 kg of fossil fuels will be consumed annually by the year 2020. If one-third the resulting carbon dioxide remained in the atmosphere, what would be the annual rate of increase in atmospheric carbon dioxide around the year 2020? Assume that the fuels are 75% carbon by mass.
Calculate (approximate) the pH of a 0.30M solution of ascorbic acid. Must use an ICE table (Initial Concentration, Change in Concentration, Equilibrium Concentration) and the quadratic formula unless the "x is small" approximation can be used.
Which of the following will react with Benedict's reagent?
Draw the structure of the compound that is consistent with the 1H NMR data below. (Assume that long-range coupling is not observed.)
What mass of ethanol, C2H5OH a nonelectrolyte, must be added to 10.0 L of water to give a solution that freezes at -10.0C? Assume the density of water is 1.0 g/mL. Kf of water is 1.86C/m.
a chemical is placed in a beaker containing 20 g of soil and 500 ml of water. at equilibrium the chemical is found in
explain methods of industrial preparation of
Alcohols are less volatile than ethers of the same molecular weight, but the two classes of compounds have approximately the same solubility in water because:
How many moles of each reactant are used in the epoxidation of cholesterol? Assume the 3-chloroperoxybenzoic acid is 80% pure.
What is the mole fraction of solute and the MOLAL (MOLALITY NOT MOLARITY!!!!!) concentration for an aqueous solution that is 14.0% NaOH by mass
If you were transferring 0.2 mL of stock solution to another vial in order to begin performing a 1:5 serial dilution, what volume of DI water must be added to complete the dilution?
Calculate delta g rxn and e cell for a redox reaction with n=3 that has an equillibrium constant of K
Suggest an experimental procedure that could be used to synthesize 1,2-dimethylcyclopentene from1,2-dimethylcyclopentanol. Explain how you might exploit the differences in the boiling points of the reactant and product in designing your experiment..
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