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Suppose you have just added 200.0 ml of a solution containing 0.5000 moles of acetic acid per liter to 100.0 ml of 0.5000 M NaOH. What is the final pH? The Ka of acetic acid is 1.77 x 10^-5
A mixture of acetaldehyde CH3CHO and propanal C2H5CHO under basic conditions
The energy bar contains 100 mg of sodium, which constitutes 4% of the maximum recommended daily intake of sodium.
before addition of any HCl (b) after addition of 25.0 mL of HCl (c) after addition of 50.0 mL of HCl (d) after addition of 100.0 mL of HCl
A system at equilibrium contains I2(g) at a pressure of 0.16 atm and I(g) at a pressure of 0.20 atm. The system is then compressed to half its volume
Carbonyl fluoride, COF2, is an important intermediate used in the production of fluorine-containing compounds. For instance, it is used to make the refrigerant carbon tetrafluoride, CF4 via the reaction
An open flask sitting in a lab fridge looks empty, but we know that actually it is filled with a mixture of gases called air. If the flask volume is 4.00 L, and the air is at standard temperature and pressure,
Which formula represents the greatest number of isomers?
An sulphuric acid solution has a concentration 3.75 M and a density of 1.230 g/cm3. Determine the molality of the solution.
Suppose you have made 1L worth of a mixture of methanol and water, by mixing 3 parts of methanol and 2 parts of water by mass. Assume for simplicity that the volume of the mixture is exactly equal to the sum of the volumes of the ingredients (whic..
Apamine is a small monomeric peptide toxin present in the venom of the honeybee. it has the sequence: CNCKAPETALCARRCQQH a)it is known that apamine does NOT react with iodoacetate. how many disulfide bonds are present?
the threshold wavelength for potassium metal is 564 nm. what is its work? what is the kinetic energy of electrons ejected if radiation of wavelength 410 nm is used?
The standard Gibbs-free energy of a system is related to its equilibrium constant through the following equation.
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