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A mix of p-methylstyrene, p-methoxystyrene and p-cresol is run using colmn chromatography. In which order would the compounds elute?
Calculate the amount of energy (in Kj) necessary to convert 317g of liquid water from 0*c to water vapour at 172*c. The molar heat of vaporization of water is 40.79kj/mol.
If 17.2 mL of 0.800 M HCl solution are needed to neutralize 5.00 mL of a household ammonia solution, what is the molar concentration of the ammonia.
What are the units of the universal gas constant R? When can a real gas behave as an ideal gas? Are these conditions met in this experiment?
If 2 volumes of 0.1 M monobasic potassium phosphate, KH2PO4, are mixed with 1 volume of 0.1 M dibasic sodium phosphate, Na2HPO4, what will be the pH of the mixture?
0.80g of hydrogen chloride is dissolved in water to make 2.5L of solution. What is the pH of the resulting hydrochloric acid solution?
A gas is compressed from an initial volume of 5.40 to a final volume of 1.20 by an external pressure of 1.00 . During the compression the gas releases 126 of heat.
what are the molar concentrations for Na+, Cl-, OH- in the resulting solution? Assume a total volume of 100 mL.
What is the mole fraction of butanol (MM = 74.12 g/mol, D = 0.810 g/mL) when 32.94 mL of butanol is mixed with 20.43 mL of ethanol
what is the theoretical and percent yields of ethanol if 648 grams of sucrose undergoes fermentation and 349 grams of ethanol is obtained.
Calculate how many kilograms of H2 it takes to electrify an average home for a month. Assume there are 30 days in a month. (1 Whr of electricity = 3600 J) Standard Values
What would be the pH of 87 mL of the buffer to which 8.5 mL of 0.11 M hydrochloric acid has been added?
The initial temperature of the calorimeter is 23.0. If 6.30 of is added to the calorimeter, what will be the final temperature of the solution in the calorimeter?
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