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Pseudoepedrine to metamphetamine? The entire mechanism (with the substitutions and movement of electrons) with explanation of the steps, reactants, and reagents used in each step?
If the initial pressure of NH3(g) is 7.845 atm,calculate the % of NH3(g) left over after the reaction reaches equilibrium according to the balanced equation.
How many kilogram of methane gas must be discharged in a room of 306 cubic meters to reach the lower explosive limit of 5 volume percent?
Calculate the equilibrium concentrations of all species and the pH in a solution where Co(OH)2 is prepared by mixing 100.00 ml of 1.000 M Co(NO3)2 (aq) and 1000.00 ml of 5.000M NH3(aq)
A 12-liter tank contains helium gas pressurized to 160 atm. What size tank would be needed to contain this same amount of helium at atmospheric pressure?
What is the formal charge on the sulfur atom in the resonancestructure of SO2 that has one single bond and one doublebond?
Break the process into the following steps: separation of thecations and anions in the vapor phase and the hydration of the ionsin the aqueous medium.
You know that Mg(s) dissolves in dilute HCl but Cu(s) doesnot. What would happen if you dipped the Cu(s) electrode into0.1 M Mg(NO3)2 solution?What would happen if you did the reverse and dipped
A common lead loading in paint is 30mg/cm2. How large of a single paint chip (in square cm) would produce a soil level above 400mg/kg EPA standard if your soil sample weighs 100grams and has a backg
A 1.00-L flask containing 6.70 g of SO2Cl2 is heated to 375C. What is the concentration of each of the compounds in the system when equilibrium is achieved?
An unscrupulous character wants to gold-plate a cheap watch to sell. He has a solution of aqueous AuNO3 and figures he needs to plate about 0.75 g of Au onto the watch to cover it.
Make a model of propane. If you substitute one bromine atom for one hydrogen atom, how many isomers are possible? Show what they are and name them.
Calculate the probability of all the molecules ending up in thesame flask if the number is 90. Calculate the probability of all the molecules ending up in thesame flask if the number is 900.
A jar test has shown that the optimum dose of ferric chlorideconsumes all of the alkalinity. If the amount of the ferricchloride that is in excess is 10 mg/l, how much lime(Ca(OH)2) in mg/l must be
A flexible vessel maintains constant pressure of 300kPA during acombustion process. The vessel has an initial volume of 0.8 m3 and contains astoichiometric mixture of octane (C8H18) gas and air at 2
The acid dissociation constant for benzoic acidC6H5CO2H is 6.5x10-5.Determine the equillibrium constant of each species in a 0.050Mbenzoic acid solution.
Write the aldol product that would be obtained if dibenzylketone condensed with itself. (Only a single condensation.) This product is not significant because benzil is more electrophilkicthan a simp
A coffee cup calorimeter containing 100 ml of H2O is used. The initial temeperature of the calorimeter is 23C. If 2.40 g ofCaCl2 is added to the calorimeter.
4.6*102 mL of 0.028 M AgNO3 and6.2*102 mL of 0.018 M Na2CO3 aremixed together. Ksp for silver carbonate is 8.1* 10-12. What is the maximum concentration of Na2CO3 that could exist
Polonium-218 is an alpha emitter with a half-life of 3.0 minutes. If a sample contains 55 mg of Po-218 (atomic mass = 218.008965 amu), how many alpha emissions would occur in 25.0 minutes?
Find ΔH for the freezing of water at -8.00 degrees celcius. The specific heat capacity of ice is 2.04 J/g. C and its heat of fusion is -332 J/g. What is the ΔE, q and w for t
Calculate the work done in joules if the gas expands (a) against a vacuum, (b) against a constant pressure of0.80 atm, and (c) against a constant pressure of 3.7 atm.
Gold can be plated out of solution according to the equationAu3+(aq) + 3e- ---> Au(s) What mass of gold in grams will be plated by the flow of 5.5Aof current for 25 minutes?
Determine the molecular formula for ibuprofen, a common headache remedy. Analysis ofibuprofen yields a molae mass of 206 g/mol and a percentcomposition of 75.7% C, 8.80% H and 15.5% O
Determine the carburizing time necessary to achieve a carbonconcentration of 0.45 wt% at a position 2 mm into an iron-carbonalloy that initially contains 0.20 wt% C. The surface concentrationis to