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There is a carbon phase diagram shown in the problem where there is a positive sloped curved line separating the graphite anddiamond region. (Temperature is the x axis and Pressure is on they-axis)
On this line (the equlibrium of graphite and diamond) there isa point "A" that is located on the far right side of the line(3/4 of the way if you move to the right on the line). They ask todetermine whether the enthalpy of point "A" is positive ornegative. The answer is negative but i'm not sure why. So to gofrom graphite to diamond the reaction is endothermic. However, isthe enthalpy negative due to the fact that at some point thepressure and temperature will be so high that the equilibrium needs to shift back to the left (diamond --> graphite) in order tocounteraffect these disturbances and so reaction will be exothermicand thus enthalphy will be negative.
What is the molality of a solution in which 15g of I2 is dissolved in 500g of alcohol?
A student is asked to determine the formula of a hydrate of colbalt (II) chloride. The mass of the empty clean, dry crucible and cover, after heating is 22.446 g. A sample of 0.324 g of cobalt chloride is added to the crucible.
Calculate the entropy change for the vaporization of liquid methane and liquid hexane using the following data, Methane CH4 -- Boiling point= 112K Delta H(vap) = 8.20kJ/mol
Assuming that none of the intermediates have appreciable concentrations, what are the values of d[C6H12O6]/dt, d[O2]/dt, d[CO2]/dt, and d[H2O]/dt, given that the overall rate is 1.0 x 10-4 mol·L-1s-1. Assume there is an excess of oxygen in the sys..
if the titrant has a molarity of 0.2000 m and there are 50.00 ml of analyte present what is the molarity of the
Draw the major organic product for (2R,3S)-2-bromo-3-methylpentane reacting with the given nucleophile. Indicate stereochemistry if necessary, including H\'s, at each stereogenic center. You do not have to draw any reaction by-products
What volume of .305M AgNO3 is required to react exactly with 155mL of .274M Na2SO4 solution
A 25.0-mL aliquot of vinegar was diluted to 250 mL on a volumetric flask. Titration of 50.0-mL aliquots of the diluted solution required an average of 34.88 mL of 0.09600 M NaOH. Express the acidity of the vinegar in terms of the percentage (w/v) ..
the speed of a photon is 4.5x10^5 ms^-1. If the uncertainty in its momentum is to be reduced to .01 percent, what uncertainty in its location must be tolerated
Which reagent could be used to separate a mixture of aniline and toluene. A) KMnO4 in H2O B) Dilute NaOH C) Dilute NaHCO3 D) Ag(NH3)2OH E) Dilute HCl
Pentane-2,4-dione (acetylacetone) exists as a tautomeric mixture of 8% keto and 92% enol forms. Draw the stable enol tautomer.
How do i calculate the aveage current that flowed thorugh an electrolytic cell from the delta [OH-] (3.910), volume of the solution (30mL) and the time of electrolysis (15min)
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