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Calculate ?H, q and w when 1.00 mol of helium at 5.00L and a temperature of 298.15K is expanded and heated simultaneously to a volume of 10.0L and 373.15K. assume the gas ideal
At what pH would the side chain of histidine exist predominately in a form that could be involved in an ionic bond?
How much heat (in {rm kJ}) is evolved in converting 1.00 mol of steam at 140.0 C to ice at -55.C? The heat capacity of steam is 2.01J/g* C and of ice is 2.09 j/g* C.
What is the theoretical amount of oxygen required for the fuel mixture? What amount of air is added to the fuel mixture?
Calculate the kg of fuel used for 100 kg mol of outlet ?ue gas and the kg mol of air used. (Hint: First calculate the mol O2 added in the air, using the fact that the N2 in the ?ue gas equals the N2 added in the air. Then make a carbon balance to ..
Consider the following combustion reaction: 2C4H10 + 13O2 -> 8O2 + 10H20. 125 g of C4H2O react with 415g O2.
Compute KP at this temperature If the pH of an aqueous solution is 8.23, what are the hydrogen- and hydroxide-ion concentrations of this solution?
How much heat is needed to vaporize 3.63 g of liquid oxygen if the molar heat of vaporization for oxygen is 1,629 cal/mole?
lead (II) sulfide (PbS) has a Ksp of 3.0 x 10^-28 . what is the concentration of lead (II) ions in a saturated solution of PbS
If 3.0 ml of distilled water is added to 2.0 ml of 0.35 M CoCl2 solution , what is the concentration of the resulting solutions?
a beaker containing 250g of water is heated from 23 degrees C to 100 degrees C. what is the heat gain in calories?
A piece of pure aluminum is placed in contact with a piece of pure copper. At what temperature should diffusionoccur for the concentration of copper in aluminum
Which of the following molecules have dipole moments? For the molecules that are polar, indicate the polarity of each bond and the direction of the net dipole moment of the molecule.
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