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What is the pressure of a mixture of helium, nitrogen and oxygen if their partial pressures are 600 mmHg, 150mmHg and 102mmHg?
The average C--H bond energy is 415 kJ/mol. Use the following data to calculate the average C--H bond energy in ethane (C2H6; C--C bond), in ethene (C2H4; C=C bond), and in ethyne (C2H2; C--C triple bond).
The coinage metals-copper, silver, and gold-crystallize in a cubic closest packed structure. Use the density of copper (8.95g/cm3) and its molar mass
How many grams of hydrogen chloride can be produced from 350 grams of sodium chloride and 290 grams of hyroden sulfate if the reaction has a yield of 88%?
Specify the organic solvent and aqueous solutions to be used for the separation. Provide the exact acid-base reaction that occurs during each step of the separation
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, using alumina as a stationary phase. How would you decide what solvent or solvent system to u..
a particular flask has a mass of 17.4916 grams when it is empty. when has mass of the flask is 43.9616 grams filled
When 1.33 mol of HCl reacts with excess MnO2, how many moles of Cl2 form?
It was found that 19.31 mL of an HCl solution are needed to react completely with 322 mL of a LiOH solution that has a pH of 11.56. What is the molarity of the HCl solution?
If the sample reacted completely and produced 2297 mL of carbon dioxide at 24.88 °C and 736.6 mm Hg, what was the mass percentage of MgCO3 in the mixture
Calculate the maximum non-expansion work that can be done on the surroundings from the combustion per kilogram of H2(g) at constant pressure and 298.15K.
In the electron transport chain, electrons from FADH2 are eventually used to reduce O2 into H2O. Experimentally, the proton motive force created by this process will generate 2 ATP molecules from ADP and Pi, using ATP synthase.
A student mixed 5.00 mL of a nickel(2) chloride solution with 5.00 mL of .100M sodium phosphate and a precipitate formed. How many moles of sodium phospahte were present in 5.00 mL of the solution?
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