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In bomb calorimeter .5f of C2H5OH (M= 46.07 g/mol) was combusted by the reaction below. If the temperature rose by 3.274 C and the foal heat capacity of the apparatus (bomb plus water) was 4.5 J/C determine the change in internal energy in kJ/mol for one mole of the reaction.
C2H5OH (liq) + 3O = 2CO2 (g) + 3H2O (liq)
Calculate the relative amounts of 1-chloropropane and 2-chloropropane obtained by the radical chlorination of propane, using this relative rate of reactivity.
What will be the total vapor pressure (in torr) of a solution prepared by mixing equal masses of the two liquids?
Determine the subunit composition of this protein from the following information: 10 points Molecular mass of the native proteinby gel filtration is 300 kD Molecular mass by SDS-PAGE
A synthetic organic chemist wants to make 100.0 grams of benzoyl chloride C7H5OCl from benzoic acid C7H6O2 in the following reaction.
If 5.50 g of the unknown compound contained 0.183 mol of C and 0.367 mol of H, how many moles of oxygen, O, were in the sample?
Calculate the molarity of Ag in a solution resulting from the mixing of 30 mL of a 0.0250 M AgNO3 solution and 11.51 mL of K2CrO4
A sample of 6.022 g of CH4 is enclosed in a 12 L container at 402 K. What is its pressure in atmospheres
What is the molarity of a solution of 14.0 g NH4Br in enough H2O to make 150 mL of solution?
What is the hybridization of the nitrogen atom in sulfathiazole? Assuming that the sulfur atom is sp2-hybridized, how many -electrons are there in the sulfathiazole ring?
The observed melting point of camphor is often low. Look up the molal freezing point depression constant K for camphor and calculate the expected depression of the melting point of a quantity
Calculate the molar mass of the biomolecule. For carbon tetrachloride, the boiling point constant is 5.03°C · kg/mol, and the boiling point of pure carbon tetrachloride is 76.50°C.
Ethylene glycol is used as automobile antifreeze. 6.38g og this compound contains 2.47g of carbon and 0.620g of hydrogen. The rest is oxygen. The molar mass is 62.0g/mole.
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