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You add 5 ml of 50 mM HCl to a .01 moles of buffer with a pKa of 6.2. The initial pH of the solution is 6.4. What is the pH after the acid is added.
Consider the following equilibrium process at 686°C: CO2(g) + H2(g) ? CO(g) + H2O(g) The equilibrium concentrations of the reacting species.
Using the orbital diagram outline steps used to describe the formation of a set of sp2 hybridized orbital for a carbon atom
Starting with only the solid, it is found that at 40 degrees Celsius the total gas pressure is .563 atm. Calculate the partial pressure of NH3 and CO2.
Explain how a change in the amount of a product causes a shift in equilibrium?
1-phenyl-3-p-hydroxyphenyl-2-propen-1-one has a lower pKa value than does phenol. Account for this and the color of the phenoxide in terms of resonance structures for the anion.
consider a reaction between ideal gases which occurs at constant temperature. if the total moles of gas does not change
bromine can be obtained from the decomposition of calcium bromide by means of electrolysis. if 10.0 g of calcium
The purification of hydrogen gas is possible by diffusion through a thin palladium sheet. Calculate the number of kilograms of hydrogen that pass per hour (in kg/h) through a 4.7 mm thick sheet of palladium having an area of 0.25 m2 at 500°C.
Starting with benzene, outline a synthesis of each of the following (many of the answers will require more than one step): a) isoproylbenzene b) propylbenzene
Calculate the degrees of unsaturation in a compound with the molecular formula C3H6 and draw two possible structures
Calculate the molar enthalpy of combustion of cinnamaldehyde (delta H comb) (in kilojoules per mole of cinnamaldehyde).
the rate constants of some reactions double with every 10 degree rise in temperature. Assume that a reaction takes place at 305K and 315 K. What must the activation energy be for the rate constant to double as described?
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