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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)
A sample of a new compound is burned in an excess of air to produced CO2 and H2O. If 0.468 g of the sample produce 0.458 g of CO2 and 0.094 g of H2O and the molar mass is about 230, what is the likely molecular formula of this compound?
What will be the average atomic mass of element A if percentage abundance of these two isotopes are 48.17 % and 51.83 % respectively. ?
Zinc is extracted from its ore by heating with carbon in the blast furnace. How much zinc oxide do you need to make 130 g of zinc?
Maria wants to plant a small tomato garden in her yard. She bought 25 tomato plants, and she has read that ideally tomatoes are planted in a square grid
Calculate kc for the reversible reaction and determine what is the activation energy
Analysis of two unknown organic structures, Unknown compound A (C8H12) is reacted with H2 (excess) in the presence of a palladium catalyst forming compound B (C8H16).
what is the molar concentration of the salt solution formed in this reaction? What is the molar concentration of the excess reactant once this reaction has finished?
If the pressure of 50.0 mL of oxygen gas at 100 °C increases from 735 mm Hg to 925 mm Hg, what is the final volume? Assume temperature remains constant.
What are the advantages of the Stock system of nomenclature over the former one?
Calculate the radius of iridium (Ir) atom given that Ir has FCC crystal structure, a density of 22.4 g/cm³ and atomic weight of 192.2 g/mol
Explain why platinum's potential decreased with time and explain why the steady-state value was -0.413V vs SHE.
How many moles of potassium carbonate will be produced if 400.0 g of potassium hydrogen carbonate are heated?
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