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The Haber process for the production of ammonia relies on a heterogeneous catalyst. How does the use of this catalyst affect the yield of the reaction at equilibrium? N2(g) + 3H2(g) 2NH3(g) H = 92.2 kJ
a 0.5123g sample molar mass 204.23gmol of khp was dissolved in about 25 ml of distilled water and titrated to the
Calculate the pressure that CCl4 gas will exert at 40 degrees celsius if 1.00 mol occupies 28.0 L, assuming that: A. CCl4 obeys the ideal-gas equation
A student following the procedure of the experiment determining the molar mass of a volatile liquid by the dumas method obtaint the following data for an unknown volatile liquid
How to start a HIV bibliography?
What is the pH of a dilute 0.00336 M solution of formic acid? Formic acid is monoprotic with a Ka of 1.70 x 10-4. You should use the quadratic equation for this one because the solution is very dilute.
Explain what is the pressure of the gas in a mercury mamometer if h=91mm as well as atmospheric pressure is 781 mmHg
what is the mass in grams of 30.0 mL of the liquid propylene gylcol, a moisturizing agent for foods, which has a density 1.036 g/mL at 25 degree Celsius.
Explain what are the potential sources of error for determining the molar extinction coefficient for methylene blue. Explain which sources contribute most to the uncertainty in the coefficient
How many Kilowatt hours of energy are necessary to heat the air in the room from 7'c to 28'C? The heat capacity of air is 1.03 J/g'C
What concentration of sodium chloride in water is needed to produce an aqueous solution isotonic with blood (blood, pi=7.70 atm at 25 degree C)
A reference sample of the same size, from a plant alive today, has a carbon-14 activity of 160.0 counts/min. If carbon-14 has a half-life of 5730 years, what is the age of the plant fossil in years
You have separate solutions of HCl and H2SO4 with the same concentrations in terms of molarity. You wish to neutralize a solution of NaOH. Which acid solution would require more volume (in mL) to neutralize the base. Why
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