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Given the following set of reations and their associated heats of reactions calculate delta H for the following reaction: 2NH3(g) + 3N2O(g) ---- 4 N2(g) + 3 H2O(l) a. 4 NH3(g) + 3O2(g) ---- 2 N2 (g) + 6H20 (l) delta H -1531 kj b. N2O(g) + H2(g) --- N2(g) + H2O (l) delta H = -367.4 kj c. H2(g) + 1/2 O2(g) --- H2O(l) delta H= -285.9 kj
How could you use a conductometric titration to determine the molarity of either reacting solutions, assuming you knew the concentration of one
Write the net ionic equation for the cell and identify which half cell will be cathode A cell constructed with a Ag/Ag+ half-cell and a Cu/Cu+ half cell.
80.0 of is initially at room temperature (22). A chilled steel rod at 2 is placed in the water. If the final temperature of the system is 21.5, what is the mass of the steel bar?
aluminum oxide al2o3 is a widely used industrial abrasive corundum emery with its specific application depending on the
Please explain the following technical terms used in mass spectrometry: a) Molecular ion,
The mass of an electron is 9.11 times 10^{-31}kg. If the de Broglie wavelength for an electron in a hydrogen atom is 3.31times 10^{-10} how fast is the electron moving relative to the speed of light? The speed of light is 3.0 times10^8 m/s.
Synthesis of a Liquid Crystal, experiment in which added 500 mg of cholesterol to 1.5 mL of dry pyridine. Then added 1.7 mmol of benzoyl chloride and heated the mixture.
Crime scene investigators keep a wide variety of compounds on hand to help with identifying unknown substances they find in the course of their duties
Strong, non-charged bases are useful in base-catalyzed reactions. Many non-charged nitrogen bases are commonly used in various reactions. Perhaps the strongest non-charged base is shown below
in an organic compound % of carbon is 75.2%,% of hydrogen is 10.75 and % of oxygen is 14.03..Find the empirical formula of compound?
Calculate the concentration of Cu^2+ in a solution prepared by adding 4.5*10^-3 mol of CuSO4 to 0.490 L of 0.37 M NH3.
An "empty" container is not really empty if it contains air. How may moles of nitrogen are in an "empty" two-liter cola bottle at atmospheric pressure and room temperature (25 C)? Assume ideal behavior. the partial pressure of nitrogen in air at 1..
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