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2.00 L H2 at 475 torr combines with 1.00 L N2 at 0.200 atm. Both are at 25 degrees C. (a) calculate the partial pressures of each of the gasses before reaction to produce ammonia, NH3...N2+3H2---> 2NH3 (b) calculate the moles of each gas before the reaction (c) determine the limiting reactant (d) calculate the moles of ammonia produced (e) calculate the partial pressures of all species in the system (f) the total pressure in the system
The vapor pressure of mercury is .0127 torr at 50 degrees celcius and .0888 torr at 80 degrees celcius. calculate the enthalpy of vaporization of mercury
A gas has a pressure of 4.82035 atm when its volume is 2.75 L. What will the pressure be when the volume is changed to 1.91015 L, assuming constant temperature.
calculate the initial slopes of the plots of the compressibility factor z vs p at 300k and 600k.
A solution of NaOH(aq) contains 11.6 grams of NaOH in 129 mL of solution. Calculate the pH at 25C.
A volume of 60.0mL of aqueous potassium hydroxide (KOH) was titrated against a standard solution of sulfuric acid (H2SO4). What was the molarity of the KOH solution if 24.7mL of 1.50 M H2SO4 was needed?
Compounds like CCl2F2 are known as CFCs and were once widely used as refrigerants. Breaking down of these molecules in the atmosphere releases Cl atoms
How much heat is absorbed in the complete reaction of 3.00 grams of SiO2 with excess carbon in the reaction below?SiO2(g) + 3 C(s) → SiC(s) + 2 CO(g) ?H for the reaction is +624.7 kJ/mol
You carefully weigh out 20.00 g of CaCO_3 powder and add it to 81.00 g of HCL solution. You notice bubbles as a reaction takes place. You then weigh the resulting solution and find that it has a mass of 92.80 g . The relevant equation is
How many grams of sodium formate, NaCHO2, must be added to 750.0mL of .250 M of formic acid, HCHO2, to obtain a buffer with pH of 5.5
what is the average power (energy per unit time) in units of watts (1W = 1J/s) associated with such a pulse? b. How many photons are emitted in such a pulse?
What is the reaction order with respect to chloroform? What is the reaction order with respect to chlorine.
A 35.0 mL sample of 0.225 M HBr was titrated with 42.3 mL of KOH. What is the concentration of KOH?
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