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Define when 5.00 mol of benzene is vaporized at a constant pressure of 1.00 atm as well as at its normal boiling point of 80.1°C, 169.5 kJ are absorbed and PV for the vaporization process is equal to 14.5 kJ then
E = kJ and H = kJ.
When diluting the juice samples with water, you did not need to be as accurate as in previous measurements. Why was the same level of precision not required?
joe is making a 0.0053 molar sulfuric acid h2so4 solution in the lab. how many grams of pure sulfuric acid is needed to
Calculate the volume of air at 26 degrees Celsius and 0.92 atmosphere that is needed to burn completely 11.47 grams of pentane.
Ethylene, C2H4, and water react under appropriate conditions to give ethanol. The reaction is C2H4(g) + H2O(g) C2H5OH(g) An equilibrium mixture of these gases at a certain temperature
Write balanced, net ionic equations for the reactions expected when the following solutions are made moderately basic with the addition of NH3(aq) followed by addition of H2S(aq).
The solution is also at it's equivalence point, where all moles of scid have nuetralized all moles of base. What is the pH of this solution when it's at its equivalence point
The procedure calls for 120 mg of 4-aminobenzoic acid, and 2.0 mL of absolute ethanol. If you used 131 mg of 4-aminobenzoic acid, and exactly 1.81 mL of absolute ethanol, what would be the ratio of moles of ethanol to moles of 4-aminobenzoic acid
The flow-through fraction in ion exchange chromotography of amino acids in which a cation exchange resin was used is expected to contain mainly
Using the enthalpy of reaction for the 2 reactions with ozone, determine the enthalpy of reaction for the reaction of chlorine with ozone.
A compound is 80.0% carbon and 20.0% hydrogen by mass. Assume a 100.- sample of this compound. How many grams of each element are in this sample
Two moles of an ideal gas originally at 380 torr and 298K are compressed at constant temperature to 680 torr. Find the initial and final volumes.
The reaction of Zn and Cu2+ produces a brown solid product. What is the identity of this product. Provide a balanced equation that shows the formation of this brown product
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