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An initial mixture of nitrogen gas and hydrogen gas are allowed to react in order to reach equilibrium by the following reaction:
3 H2(g) + N2(g) ? 2 NH3(g)
At equilibrium, [H2] = 5.0 M, [N2] = 8.0 M and [NH3] = 4.0 M. What was the initial concentration of H2(g) before any reaction occurred?
A solution of ethanol (C2H5OH) in water is prepared by dissolving 72.0 mL of ethanol (density = 0.79 g/cm3) in enough water to make 300.0 mL of solution. What is the molarity of the ethanol in this solution?
A reaction takes place inside a constant volume or BOMB calorimeter. Pressure is not constant during the reaction. The heat absorbed by the calorimeter is measured to be +15J.
a student reported the follow ing percentages for his unknown mixture 25nh4cl 30 nacl and 50 sio2. assuming that the
A sample of gas occupies 250 mL at STP. What is the temperature if the gas expands to 1500 mL at a pressure of 0.500 atm?
On average, what percentage of random rolls of three (3) regular playing dice should result in a combined value of 5
Some liquid antacids contain suspensions of aluminum hydroxide [Al(OH)3. Write a balance equation for the reaction of AL l(OH)3 with the HCl in stomach acid ( Include the phase of each substance)
Iron exhibits three common oxidation states, as seen in Fe, Fe2+, and Fe3+. Write electron configuarations for each of these species using the noble gas abbreviations and determine the n and l quantum numbers of the electron that is removed in goi..
What are the factors that can influence the rate of a chemical reaction? 2- Why do the rates of most chemical reactions slow down over time?
Calculate D for hemoglobin in water at 25 degrees celsius ( ? = 0.89 cP ), given that Vm= 48000 cm^3/mol for hemoglobin. Assuming the molecules are spherical and estimate the volume of a molecule as Vm/ Na.
Complete and balance the following chemical equation using the smallest whole number coefficients. Assume the reaction takes place in acidic aqueous solution. Use H + to balance charge, not H 3 O +
no2nbspreacts with f2nbspto give no2nbspaccording to the following overall reaction2no2g f2g rarr 2no2fgwhat is the
Cinnamon owes its flavor and odor to cinnamaldehyde (C9H8O). Determine the boiling point elevation of a solution of 89.3 mg of cinnamaldehyde dissolved in 1.00 g of carbon tetrachloride (kb = 5.03 C/m)
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