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Look up the critical constants for difluorochloromethane as well as compute the pressure exerted by 100g of CHF2CL in a 75 cm3 vessel at 227 C by means of a) the perfect gas equation of state b) The VDW equation of state, and c) The virial equation of state.
Calculate the enthalpy of the reaction: 2NO(g) + O2(g) --> 2NO2(g) given the following reactions and enthalpies of formation: 1/2 N2(g) + O2(g) --> NO2(g), delta H *A = 33.2 kJ 1/2 N2(g) + 1/2O2(g) --> NO(g), delta H *B= 90.2 kJ
If the coal is burned in a power plant that uses 1900 tons of coal per day, what mass of calcium oxide is required daily to eliminate the sulfur dioxide?
A 75mL sample of NaOH was triated with >45 M HCL. 36 mL of HCL were necessary to reach the equivalent point. Compute the molarity of the NaOH.
A 2.50 g sample containing As2O5, NA2HAsO3, and other materials is dissolved and neutralized. The As(III) is fully titrated by (oxidized by) 11.3 mL of 0.150M I2. All the arsenic present is now in the +5 state. Excess KI is added.
When the Vmax and the Km of an enzyme are not known, it is essential to determine the enzyme's initial velocity (Vo) at different [S]. To determine the initial velocity, one would have to: Select one: a. Use the Michaelis Menten equation
Given the tabulated data, what is the lattice energy of crystalline calcium chloride?
Aquated iron (II) ions undergo a disproportionation reaction to give Fe (s) and aquated iron (III) ions. That is, iron (II) ions are both oxidized and reduced in the same reaction
Using structural formulas, and arrows to show electron movement, write reaction mechanisms for the pyrolysis of the aryl sulfonate ester to produce alkene(s) assuming that: (a) the mechanism is E1, and (b) the mechanism is E2.
dissolved in water to produce a 0.0172 M solution. The pH of the resulting solution is 2.34. Calculate the Ka for the acid.
a solution contains 8.90g of kbr in 500.0ml of solution and has an osmotic pressure of 6.99atm at 25 degree c.
600.0 ml of 0.240 m perchloric acid hclo4aq was added to a high quality constant-pressure calorimeter containing 400.0
For what signs of ?H and ?S will a process be spontaneous at high temperatures but not at low temperatures? not be spontaneous at any temperatures
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