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1.) When 1.550 g of liquid hexane (C6H14) undergoes combustion in a bomb calorimeter, the temperature rises from 25.87 ºC to 38.13 ºC. Find ?E rxn for the reaction in kJ/mol hexane. The heat capacity of the bomb calorimeter, determined in a separate experiment, is 5.73 kJ/ºC.
2.) The combustion of toluene has a ?E rxn of -3.91 × 103 kJ/mol. When 1.55 g of toluene (C7H8) undergoes combustion in a bomb calorimeter, the temperature rises from 23.12 ºC to 37.57 ºC. Find the heat capacity of the bomb calorimeter.
What is the theoretical yield in grams? What is the theoretical yield in moles? (I already have the calculated amounts of reactants) Just need theoretical yields.
A gas at 89 degrees celcius occupies a volume of 0.67 L. At what kelvin temperature will the volume increase to 1.12 L. ?
How much heat is required to warm 229 g of ice from -44.7°C to 0.0°C, melt the ice, warm the water from 0.0°C to 100.0°C, boil the water, and heat the steam to 173.0°C?
Draw the Lewis structure for the PO4-3 ion, indicating any resonance forms. On the basis of electron configurations, predict the formula of the Type I ionic compound formed from the elements Z=49 and Z=51.
0.250 g of a binary unknown acid, HX, requires 31.96 mL of a 0.09668M NaOH solution when titrated. What is the identity of the unknown acid.
Predict the products when cyclohexanol is heated in the presence of H+. Show both the organic product and the byproduct
The molar heats of sublimation and fusion of iodine are 62.3 kJ/mol and15.3 kJ/mol, respectively. Calculate the molar heat of vaporization of liquid iodine.
The compounds Na2O, CdS and ZrI4, all can be described as cubic closest packed anions with the cations in tetrahedral holes. What fraction of the tetrahedral holes is occupied for each case?
Imagine a researcher allowed the paper chromatogram to develop for far longer than necessary in the mobile phase, such that the solvent front ran into the top edge of the paper and the spots continued to move.
How many different types (sets) of hydrogens are there in 2,2-dimethylpentane
what is the volume of 1 mole of Helium gas when the pressure is 1.47 atm and the temperature is 287 K.
The wastewater solution from a factory containing high levels of salts needs to be diluted before it can be released into the environment. Therefore, two containers of waste solution are separated by a semipermeable membrane
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