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At a temperature of 500 degrees celsius the equilibrium constant ,Kc, for the following nitrogen fixation reaction 3H2(g)+N2(g)----->2NH3 is 6.0x 10^-2 . If 0.250 mol/L of H2 and 0.050 mol/L NH3 are present at equilibrium, what is the concentration of N2?
If the pressure exerted by ozone in the stratosphere is 3 x 10^-3 and the temperature is 247 , how many ozone molecules are in a liter?
The visible part of the hydrogen atom spectrum is called the Balmer series (n1 = 2). The violet line has a wavelength of 410.2 nm.
Suppose a student creates a solution by dissolving 0.5095 g of a non-dissociating, non-volatile unknown solute in 15.58 g cyclohexane. The freezing point change is -2.0 Celsius. Calculate the number of moles of solute in the solution
2.50 moles of cobr2 are introduced into a 2.00 liter flask at 0degrees and heated to a temp of 73 degree celcius. at
Write a structural formula and a line-angle formula of each isomer of C4H8. Do not include any cyclic structure. Write the IUPAC name of each isomer. Make sure to include the cis- or tran- in the name if applicable.
If the following elements were to form ions, they would attain the same number of electrons as which noble gas? Noble gases- He, Be, Ar
Calculate the pH for each of the following cases in the titration of 50.0 mL of 0.200 M HClO(aq) with 0.200 M KOH(aq). The ionization constant for HClO can be found here.
Does your result agree with the measured overall rate law expression? If not, under what conditions would agreement be observed?
Assuming that the reaction SO2(g) + H2O(l) --> H2SO3(l)is quantitative, how much sulfurous acid is formed when 100.0 g of sulfur dioxideare mixed with 60.0 g of water?
Find the concentration of calcium ions in a solution made by adding 3.50 g of calcium fluoride to 750. mL of 0.125 M NaF. [For CaF2, Ksp = 3.95 ? 10-11.]
What effect would each of the following have on the calculated molecular weight of an unknown. Would the calculated value be higher than the true value. Lower. Same
Determine the mass of Al is needed to combine with 3.077 kilo grams of Ammonium per chlorate NH 4 ClO 4 for this reaction? express your answer in units of g
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