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What volume of water should be added to 600 mL of ethanol in order to have a solution that boils at 95 degrees Celsius? (For ethanol, Tb=78.4 degrees Celsius, Kb=1.22 degrees Celsius and d= 0.789 g/ml. For water d= 1.00 g/m.
100 moles of C4H10 undergoes complete combustion in excess air. First, show the degree of freedom analysis for this process. Then calculate the composition (mole fractions) of the stack gas on a wet basis for the following three cases: (1) theoret..
if the vapor of a volatile liquid of 2.31grams nbspis able to fill a flask of 498-ml at 100 degree celsius and 775 mm
What is the wavelength (in meters) of photons with the following energies. In what region of the electromagnetic spectrum does each appear.
based on the law of multiple proportions how many grams of hydrogen would you expect 2.49 of nitrogen to combine with
For a particular reaction it was found that the reaction rate was 16 times faster at 35oC than it was at 25oC. It was also found that the equilibrium constant at 25oC was four times bigger than it was at 35oC.
A mixture of MgCO3 and MgCO3·3H2O has a mass of 3.057 g. After heating to drive off all the water the mass is 2.790 g. What is the mass percent of MgCO3·3H2O in the mixture.
How much ice (in grams) would have to melt to lower the temperature of 352 of water from 26 to 5. (Assume the density of water is 1.0)
What mass of Fe would be contained in a 80.0 g sample of magnetite ore that is 76.0% Fe3O4. Assume no other form of Fe is present
effects of solvent water on the photophysical properties of a series of meta- and para-substituted anilines have been
a research supervisor told a chemist to make 100 g of chlorobenzene from the reaction of benzene with chlorine and to
calculate the milliliters of 0.124 M KOH required to neutralize 46.0 mL of 0.200 M HNO2-?
The enthalpy change for the oxidation of styrene, C8H8, is measured by calorimetry. C8H8(l) + 10O2(g) ? 8CO2(g) + 4HOH(l) ?rH = -4395.0 kJ/mol How much heat in kJ is required to oxidize 25.0 g of styrene?
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