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What is the equilibrium constant for the acid-base reaction between ammonia and acetic acid
What type of intermediate is formed upon treatment of 1-chloro-2,4-dinitrobenzene with sodium hydroxide at room temperature to give 2,4-dinitrophenol
The electophilic addition reaction of conjugated dienes that occurs at low temperatures and/or short reaction times is said to be under what? A)thermodynamic control B)kinetic control C)1,2-additon
An aqueous solution of glycerol, C3H8O3, is 4.8 molal and has a density of 1.120 g/mL. Calculate the molarity of the glycerol solution
A 10mL aliquot of this solution, diluted to 25mL, yielded a signal of .235 units. A second 10 mL aliquot was spiked with 10mL of 1ppm standard solution of the analyze and diluted to 25mL. The signal
A city's water supply is fluoridated by adding NaF. The desired concentration of F- is 1.6 ppm. How many milligrams of NaF should be added per gallon treated water if the water is already 0.2 ppm F-
What mass of real van der waal behaving form of N2 gas is present in a 50l container at 400K under 20 atm of N2 pressure where a=1.37 litre^2 bar mole^-2 and b=0.0387 litre/mole
The density of water vapor at 327.6atm and 776.4K is 133.2gm/dm^3. determine the molar volume Vm of water and the compression factor Z from these data
Separate the following four compounds using extraction and isolate them in their neutral (as shown) form. Follow the flow chart in Padias (but draw the compounds instead of using the generic "HA," "
The energy difference of 3.8 kJ/mol between gauche and anti butane corresponds to an equilibrium constant, Keq, of approximately 1.9. Calculate the percentage of each conformer at equilibrium.
Calculate the intermolecular collision frequency and the mean free path in a sample of helium gas with a volume of 5.0 L at 27C and 3 atm. Assume the diameter of a He atom is 50 picometers (pm).
Compute the wavefunction and the probability to tunnel, for a proton in the potential: V(x)=0, when x< -0.20 nm, and x>0.00 nm, and V(x)=2.0*10-19 J otherwise. Consider this wavefunction to ha
Consider the reaction with the rate law, Rate = k[BrO3-][Br-][H+]2 By what factor does the rate change if the concentration of H+ is decreased by a factor of 3
Calculate the separation in energy between the ground state and the first excited state in which one electron occupies the state with n=7. Calculate the frequency of the radiation required to produce
Consider the reaction with the rate law, Rate = k[BrO3-][Br-][H+]2 By what factor does the rate change if the concentration of Br- is doubled? Just put in the number as a whole number or fraction.
What type of transport is used to take up the ribose in I. facto and in your answer,explain all the data. What is the source of energy for the transport of the ribose?
If 13.0 g of MgSO4*7H2O is thoroughly heated, what mass of anhydrous magnesium sulfate will remain. Express your answer numerically in grams.
Determine the linear and volume shrinkages that occur during the drying and sintering of a gel containing 5 vol% solids if the dried gel and the sintered gel have a solids content (relative density)
Describe how you would make 2mL of the solutions that you described in the above using a 1.0 mg/mL solution of hemoglobin and a buffer to dilute it with.
The heat capacity of liquid water 4.18 J/g degree celcius and the molar heat of vaporization 40.7 kJ/mol. How many kilojoules of heat must be provided to convert 1.00 g of liquid water at 67 degree
Producing ethanol as a biofuel from sugars in corn (glucose) has become a major industry in the grain belt. This process can be summarized as follows, where glucose to form ethanol and carbon dioxid
List all possible bonds that can occur between the elements P, Cs, O, and H. Predict the type of bond (ionic, covalent, or polar covalent) one would expect to form for each bond.
Calculate the lower heating value of the Brookeville Seam coal with the analysis given below with 10, 20, 30, 40, and 50% moisture contents . Comment on the percentage of the heat loss based on the
An electron in the n=4 energy level of a He+ atom could be in any number of degenerate energy states or orbitals. List all of the possible values of the 1 and m1 quantum numbers for n=4, identify th
At equilibrium 1.12e-02 mol of HCl is found in the reaction mixture. Calculate the equilibrium pressures of all gases in the reaction vessel and the value of KP for the reaction. Pick the correct st