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The sulfuric acid acts as a catalyst to remove one molecule of water from 2 molecules of ethanol. What is the balanced equation for this reaction?
Solid AB2 is added to water and allowed to reach equilibrium. At equilibrium, the concentration of A2+ is found to be 0.24 moles/L. What is the Ksp of this salt
verify that the 2s wavefunction for hydrogen is normalized. use the wavefunction for the 1s orbital to find the expression value for r
Calculate the percent composition of copper in the hydrate CuSO4.5H2O based on atomic weight data.
What is the silver ion concentration in a solution prepared by mixing 373 mL of 0.366 M silver nitrate with 383 mL of 0.563 M sodium chromate?
What is the volume of 135 mL of oxygen gas at 113°C and 870. mm Hg if the conditions are adjusted to STP? Assume the amount of gas is held constant.
How many photons are required to heat 235 mL of coffee from 25.0 C to 62.0 C? Assume that the coffee has the same density, 0.997g/mol , and specific heat capacity, 4.184 J?g*K, as water over this temperature range.
calculate the heat absorbed by 15.0 g of water to raise its temperature from 20.0oc to 50.0oc at constant pressure. the
Based on the procedure that you used in this experiment, and the same molar quantities of reactants, develops a procedure that would be suitable for the preparation of isobutyl propionate.
The four molecular p orbitals of the four carbon atoms can be lined up parallel in order to create four new molecular orbitals. The electrons in the new molecular orbitals benefit because they are not confined to just one atom.
Combustion of natural gas (primarily methane) occurs in most household heaters. The heat given off in this reaction is used to raise the temperature of the air in the house.
A 8.90g sample of lead nitrate was heated in an open container to cause decomposition. Calculate the theoretical yield of PbO in grams.
When the cations Na+, K+, Rb+, Cs+ are combined with chloride ion in the gas phase to form ion pairs, which pair formation releases the greatest amount of energy?
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