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A certain reaction has a ?H of -213 KJ/mol and a ?S of -27.0 J/mol.K at 625°C. Determine the free energy change in the reaction and whether the reaction is spontaneous under these conditions.
a 5.50 g sample of sih4 and an excess of oxygen were placed in a reaction container surrounded by 2.80 kg of water. the
The freezing point depression constant, Kf, for water is 1.86?C/m. Suppose that 5.00 g of mercury(I) nitrate was dissolved in 100.0 g of water
A buffer containing 0.42 M base, B, and 0.28 M of its conjugate acid, BH+,has a pH of 8.86. What is the pH after 0.0020mol of HCl is added to 0.25 L of this solution
liquid octane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water. suppose 74 grams of octane is mixed with 148 grams of oxygen
how many grams of ethylene glycol must be added to 700g of water to yield a solution that will freeze at -8.5 degrees Celsius?
SbCl3(s)+H2O(l) -> SbOCl(s)+2HCl(g) In this reaction what is the percentage of Cl in SbOCl and in 2HCl
The temperature of 55.6 grams of a material decreases by 14.8 degrees C when it loses 3080 J of heat. What is its specific heat?
EXPLAIN why at low temperatures, e.g. -80 °C, when HCl is added to 1,3-butadiene the major product is 3-chloro-1-butene. c) EXPLAIN why at +80 °C when HCl is added to 1,3-butediene the major product is 1-chloro-2-butene.
How many minutes will it take to plate out 2.19 g of chromium metal from a solution of Cr3+ using a current of 35.2 amps in an electrolytic cell?
At a certain temperature, 0.920 mol of SO3 is placed in a 2.00-L container.At equilibrium, 0.170 mol of O2 is present. Calculate Kc
addition of hbr to 1-phenylpropene yield only 1-bromopropylbenzene.propose a mechanism for the reaction and explain
calculate the mole fraction of soluteand solvent present in the solution.
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