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How much heat is absorbed or released in the reaction of 20.0 g of NH3 with sufficient oxygen to produce NO(g) and H2O(l)? 4 NH3(g) + 5 O2(g) g? 4 NO(g) + 6 H2O(l) ?H = -1168 kJ A. 343 kJ is released B. 343 kJ is absorbed C. 1374 kJ is absorbed D. 1374 kJ is released E. 58.4 kJ is absorbed
Given the Rydberg constant of -2.18x10^-18 J, Calculate the wavelength of the emitted photon for the first transition (highest energy) in each series.
Burning a straight chain alkane in oxygen gas yields a reaction: CnH(2n+2) + aO2 = bCO2 + cH2O determine the factor "a" as a function of "n" for equations where n is equal to or greater than 1.
Draw the molecule by placing atoms on the grid and connecting them with bonds. If there is more than one answer, draw all o
Consider a liquid with a vapor pressure of 320. torr at 20.0 degrees C and a vapor pressure of 540. torr at 50.0 degress C. What is the normal boiling point of this liquid?
What is the concentration of the sodium ion (in M) in a solution of 0.681 M sodium chloride
Iron and oxygen react to form iron(III) oxide; 4Fe(s)+3O2(g)-->2Fe2O3(s). Determine the limiting reactant in each of the following mixtures of reactants: a) 2.0 mol of Fe and 6.0 mol of O2. b) 5.0 mol of Fe and 4.0 mol of O2. c) 16.0 mol of Fe and..
Suppose you are given 150 mg of an unknown mixture that contains three compounds, and you are told to separate the compounds using column chromatography
A volume of 32.2 mL of a 1.16 M KMnO4 solution is mixed with 17.7 mL of .692 M KMnO4 Solution. Caclulate the concentration of the final solution.
Explain the factors that affect rate and relative reactivity. Use a mechanism(s) and reactions to support your claims.
Draw additional molecules of sulfanilamide and hypothesize the intermolecular interactions that are most important for providing a stable and selective crystal structure
The boiling point of an aqueous solution is 101.53 °C. What is the freezing point? Constants can be found here.
X rays have wavelength on the order of 1*10^-10m. calculate the energy of 1.0*10^-10m X-rays in units of kilojoules per mole of X rays.AM radio waves have wavelength on the order of 1*10^4m. calculate the energy of 1.0*10^4m radio waves in units o..
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