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4.50 g of methane gas (CH4) occupies 12.7 L at 310 K. Calculate the work, heat, energy and enthalpy change upon: a) expansion by 3.3 L at p=const (isobaric). b) isothermal expansion by 3.3. L against a constant external pressure of 30.0 kPa c) reversible isothermal expansion by 3.3 L.?
Bauxite, the principle ore used in the production of aluminum cans, has a molecular formula of Al2O3•2H2O. (a) Determine the molar mass of bauxite. (b) How many grams of Al are in 0.58 moles of bauxite?
Lyzozyme(The protein) unfolds at a transition temperature of 75.5 degree celsius, the standard enthalpy of transition = 509 kJ/mol. Compute the entropy of unfolding of this protein at the temperature of twenty five degree celsius
A solution is prepared by dissolving 297 g of sucrose (C12H22O11) in 624 g of water. What is the vapor pressure of this solution at 30°C? (The vapor pressure of water is 31.8 mmHg at 30°C.)
Hemoglobin is the protein that transports oxygen in mammals. Hemoglobin is 0.342% Fe by mass, and each hemoglobin molecule contains four iron atoms. Calculate the molar mass of hemoglobin
What is the reaction order with respect to each reagent for the following reaction? Then write the rate law equation.
Consider the conversion of CH3CH2CH2CH2OH to each of the compounds shown below. In which conversion is an oxidizing agent required
Why should EH&S and FS professionals avoid inhaling the smoke produced when tar paper and roofing shingles smolder and burn?
A sample of gas is heated. During the heating process, the volume of the gas increases 1.7 times. If the initial temperature of the gas is 80degrees C. what is the final temperature of the gas?
We use Use the De Broglie wavelength formula, ohr radius definition and wave-particle duality equation to compute the wavelength of,
Why would it be more appropriate to put the elements La and Ac in the bottom two periods and put Lu and Lr in the transition metals? Why don't we see the use of any sublevels higher than the f sublevel?
What tripeptide would be synthesized from the informational strand of DNA with the sequence 5' GTATCCAGT?
a colorless liquid that is commonly known as grain alcohol, is 0.789 g/mL. Calculate the mass of 17.4 mL of the liquid.
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