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Utilize the standard enthalpies of formation from Appendix II (A-7 to A-12) to compute the enthalpy change (in kJ) for the reduction of iron (III) oxide to iron at 298 K and 1 atm. Compute it for the reaction as written, namely 2 moles of iron (III) oxide and 3 moles of carbon.
2Fe2O3(s) + 3C(s) --> 4Fe(s) + 3CO2(g)
I have the worse trouble Newman Projections. Please help. Draw Newman projection formulas (looking at the bond between C-2 and C-3) for the three tartaric acids. Label pairs of enantiomers and diastereomers, as well as the meso forms.
A system absorbs 159 kJ of heat, and performs 83 kJ of work on the surroundings. What is the change in E of the system
Solid white phosphorous melts then vaporizes at high temperatures. gaseous white phosphorus effuses at a rate that is .404 times that of neon in the same apparatus under the same conditions. how many atoms are in a molecule of gaseous white phosph..
the temperature of the surrounding remains essentially constant during the process. Calculate deltaSsystem, deltaSsurroundings and deltaStotal.
Explain what volume (L) of NH3 gas at STP is produced by the complete reaction of 7.5 g of H2O according to the following reaction
A radioisotope decays. Which two types of nuclear change would yield exactly the same isotope as product. A. alpha & beta decay
How many moles of aluminum atoms, Al, are needed to combine with 0.133 mol of O atoms to make aluminum oxide, Al2O3?
determine the solubility of iron in mgl as fe in a solution in equilibrium with feoh3 s ironiii hydroxide 10-2m total
What is the pH of a buffer that results when 0.50 mole of Na3PO4 is mixed with 0.75 mole of HCl and diluted with water to 1.00 L?
What max of water can be heated from 15 degrees C to 100 by burning this piece of cool
A beaker with 100 mL of an acetic acid buffer with a pH of 5.00 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 8.60 mL of a 0.380 HCl solution to the beaker. How much will the pH c..
how many moles of nitroglycerin were in the container originally? b) how many moles of gas(air) were in the container originally? c) how many moles of gas are in the container after the explosion?
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