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Given the following at 25°C and 1.00 atm: 1/2N2(g) + O2(g) ® NO2(g)DH0 = 33.2 kJ N2(g) + 2O2(g) ® N2O4(g)DH0 = 11.1 kJ Calculate the DH0 for the reaction below at 25°C. 2NO2(g) ®
The following reaction is spontaneous only below 3000 K. What conclusions can be drawn regarding this reaction? A + B ® AB
Mass of isopentyl acetate formed at equilibrium is 126.68. Q: how much isopentyl acetate lost from theoretical yield by incomplete equilibrium.
How much heat would be released if 12.0 g of methane, CH4, was completely burned in oxygen to form carbon dioxide and water at standard state conditions
For which set of values of DH and DS will a reaction be spontaneous (product-favored) at all temperatures
Does 4-Phenylphenol have a monosubstituted aromatic ring ( or also known as monosubstituted aromatic overtone band [msoab] )
A process occurs spontaneously and DSsystem < 0. Which statement below must be true?DSsurroundings > 0DSuniverse > 0The pressure is constant.Both (a) and (b) are correct.All of these answer
Given a barometric pressure of 756.0{rm mmHg} , calculate the pressure of gas sample (a) as indicated by the manometer
An ideal gas is compressed isothermically by a force of 85 newtons acting through .24 meter. Calculate values of delta U and q.
What should the mole percent of oxygen be in the diving gas for the partial pressure of oxygen in the mixture to be 0.21 atm, the same as in air at 1 atm
What is value of the activation energy, Ea, for this reaction. What is the value of the pre-exponential factor (sometimes called the frequency factor), A, for this reaction
C12H10, is a nonvolatile, non-ionizing solute that is soluble in benzene, C6H6. At 25 degrees celcius, the vapor pressure of pure benzene is 100.84 torr. What is the vapor pressure of a solution mad
A solution is made my mixing equal masses of methanol, CH4O and ethanol, C2H6O. Determine the mole fraction of each component to at least three significant figures.
A twofold increase in the initial concentration of A leads to a 1.41-fold increase in the initial rate. what is reaction order
Close the side neck of the flask with a rubber pipette bulb (or vacuum line in case of high mp substances), and then place ice water in the centrifuge tube.
Both hemoglobin and myoglobin contain a prosthetic group called heme, which contains a central iron atom. Molecular oxygen binds irreversibly to the Fe(II) atom in heme.
A certain reaction has an Eact of 62.3 kj/mol (14.9 kcal/mol) and a frequency factor of 7.15X10^8LXmil-1Xsec-1. use the arrhenius equation to calculate the rate constant for this reaction at 35 degr
Estimate the pH range over which the color change occurs for bromocresol green. What would be the effect on your results if methyl red indicator, pKa =5.0 were used during the experiment
Why does the pink color of phenolphthalein fade away and is soda pop acidic. Why
If the pH of a solution is 4.2 (at 25 degrees C) what is the hydronium and hydroxide ion concentrations, and the pOH of the solution
A 0.150 M solution of an enantiomerically pure chiral compound D has an observed rotation of 0.12° in a 1-dm sample container. The molar mass of the compound is 135.0 g/mol. (a)What is specific
One mole of an ideal gas undergoes an isothermal reversible expansion, doing 1 kJ of work and doubling the volume. What is its final temperature? How much heat was added to the gas
One mole of an ideal gas at 25C and 1 bar is allowed to expand adiabatically against a constant external pressure of 1.00 bar from 1.00 dm^3 to 10.00 dm^3. Calculate the final temperature
During an experiement, 225 mL of Wet H2 was collected over water at 29 Celcius, with a total pressure of 748 torr. How many grams of Zinc were consumed as a result
One mole of a van der Waal's gas is compressed isothermally and reversibly from 20 dm^3 to 1 dm^3. a=.556 Pa mol^6/m; b=.064 dm^3/mol. Calculate w,q, and delta_U.