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At high temperature, ammonia reduces copper(II) oxide to the free metal: Step 1: 2NH3(g) + 6CuO(s) => N2(g) + 3Cu2O(s) + 3H2O(g) Step 2: 2NH3(g) + 3Cu2O(s) => N2(g) + 6Cu(s) + 3H2O(g). calculate the heat of reaction for Step 2. a. 127.9 kJ b. -27.3 kJ c. 27.3 kJ d. -127.9 kJ e. None of these
If a non-cyclic alkane shows a molecular ion peak at m/z 2.4*10^2, what is the chemical formula
how much heat energy is required to change 1.00*10^3 of ice at -30.0c to steam at 150c
A sample of carbon monoxide occupies 6.15 at 298k snd 745 torr. Find its volume at -14 C AND 367 Torr
Calculate the pressure difference between CH4 and an ideal gas under these conditions. The van der Waals constants for CH 4 are a=2.300L2⋅atm/mol2 and b=0.0430 L/mol.
how many molecules of oxygen gas are needed to react with 4.2 moles of C3H8O?
What is the percent dissociation of ascorbic acid if the solution has a pH = 5.50 and a pKa = 4.10?
Correct for the water vapor present in the wet dry ice experiment and compare and compare with the mean value for the dry ice experiment. Does the presence of water vapor affect the result?
What would happen if bezaldehyde react with a high (50%) concentration of sodium hydroxide in the absence of acetone via aldol condensation
Pesticide concentrations in the Rhine River between Germany and Grancn between 1969 and 1975 averaged 0.55 mg/L of C6Cl6, 0.06 mg/L of C12H8Cl60 and 1.02 mg/L of C6H6Cl6.
what is the final temperature of the mixed solution? The heat of neutralization is -56.2 kJ/mol. Assume the density and specific heat of the solutions are the same as those for water.
1-phenyl-3-p-hydroxyphenyl-2-propen-1-one has a lower pKa value than does phenol. Account for this and the color of the phenoxide in terms of resonance structures for the anion.
A 15.0 ml sample of nitric acid solution is titrated with a 0.960 M barium hydroxide until the end point. Based on the titration data, the concentration of nitric acid is determined to be 3.18 M. Calculate the volume in milliliters of barium hydro..
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