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Consider the following reaction:
2H2(g)+O2(g)= 2H2O(l) delta H=-572kJ
how much heat is evolved for the production of 1.00 mole of H2O(l)?
How many grams of Na2CO3 are present in 17.0 mL of a solution that is 39.0% Na2CO3 by mass. The density of the solution is 1.05 g/mL.
The equilibrium of Fischer esterification reactions in general is slightly towards product formation. The equilibrium can be made more favorable for product formation by all of the following except
What is the relative solubility of benzoic acid in water and methylene chloride?
The purity of a sample containing zinc as well as weighing 0.198 g is determined by measuring the amount of hydrogen formed while the sample reacts with an excess of hydrochloric acid.
Following a terrorist release of Cesium-137 (half-life of 30 years) in downtown, clean up efforts were successful in removing all but 100 curies. How long will it take for the contamination to decay to about 5 curies?
A mixture of Ar and N2 gases has a density of 1.491 g/L at STP. What is the mole fraction of each gas
a quantity of 2.00 times 102 ml of 0.862 m hcl is mixed with 2.00times102 ml of 0.431 m baoh2 in a constant-pressure
What is the pH (to nearest 0.01 pH unit) of a solution prepared by mixing 52.0 mL of 0.631 M HCl and 63.0 mL of 0.723 M NaOH
for the reaction a --gt b the activation energy is ea 125 kjmol and the heat of reaction h 50 kjmol. what is ea for
Calculate the volume of 0.460 M radium hydroxide solution required to completely neutralize 10.00 mL of 1.17 M phosphoric acid
Provide a stepwise mechanism for the reaction, showing all electron movement using the curved arrow convention. Sketch a qualitative energy level diagram for the mechanism labeling all relevant points.
Explain when the cycle is in operation, 500kg of ice melts each hour. If the cycle operates for 3 hours, compute (a) the net heat absorbed from the warm source and (b) the net heat given away to the cold source. Presume the latent heat of fusion a..
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