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A 227 mL benzene solution containing2.53 g of an organic polymer has anosmotic pressure of 8.63 mmHg at 21°C. Calculate the molar mass of the polymer. (g/mol)
Conversion for a Specific Product, Indicate the reaction conditions you would employ to accomplish the following
The heat of fusion of acetic acid, the principal organic component of vinegar, is 45.9 cal/g.How much heat (in kilocalories) is required to melt 3.65 mol of solid acetic acid
the solubility of co2 in water at 25 degree celsius and 1 atm is 0.034 moll. what is its solubility at a partial
Potassium hydroxide is used to precipitate each of the cations from their respective solution. Determine the minimum concentration of {\rm KOH} required for precipitation to begin in each case.
Arrange the following gaseous substances in order of decreasing root mean square velocity at 25°C. argon, fluorine, carbon dioxide, oxygen, helium A.
determine the freezing point of this solution If 18.0 grams of a nonelectrolyte that has molar mass = 44.2 g/mol are combined with 110.0 grams of the solvent,?
A reaction has a rate constant of 0.0686 sec-1; how long will it take (in minutes) until 0.198 mol/L of the compound is left, if there was 0.715 mol/L at the start? (give answer to 3 sig figs using E notation)
a quantity of 2.00x102 ml of 0.862 m hcl is mixed with 2.00x102ml of 0.431 m baoh2 in a constant-pressure calorimeter
A gas occupies a volume of 480 mL at 127 degrees celsius and 148 mmHg. What mathematical expresssion will yield the correct volume at 177 degrees celsius and 400mgHg?
The dried precipitate weighs 10.3g. Calculate the amunt of MgCl2 in the original sample (in weight percent).
Intravenous medications are oftend administered in 5.0% glucose by mass. what is the osmotic pressure of such solutions at 37 C? assume that the density of the soloution is 1.0 g/mL.
consider another expandable balloon is filled with nitrogen gas. the density of the gas is 1.24 gl and the outside
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