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A 2-kg mass of an ideal gas expands at a constant pressure of 172 kPa in a piston-cylinder system from a temperature of 32oC to a final temperature of 182oC. Determine Q, W, DeltaU and DeltaH. Assume Cv of the gas is constant and equal to 21.1 J/mol-K, and molecular weight of the gas is 32 g/mole.
Acid rain was at one time an important point of contention between the United States and Canada. Much of this acid was the result of the emission of sulfur oxides by coal-fired electricity-generating plants in southern Indiana and Ohio
Given 6.4 mL of sulfuric acid (98%) calculate the number of mmols. (MW H2SO4: 98.08 g/mol, density: 1.840 g/mL)
Suppose that S is regarded as a function of P and T. Show that TdS = CpdT- aTVdP where a is the thermal expansion coefficient. (a=alpha)
A 18.0 L gas cylinder is filled with 6.00 moles of gas. The tank is stored at degrees celsius. What is the pressure in the tank
A biochemical engineer isolates a bacterial gene fragment and dissolves a 10.9 mg sample of the material in enough water to make 36.5 mL of solution. The osmotic pressure of the solution is 0.340 torr at 25°C. (a) What is the molar mass of the gen..
Ethylene glycol (EG) is a commonly used automotive antifreeze. Calculate the boiling point and the freezing point of the 25% EG solution if Kb=0.512oC/m and Kf=1.86oC/m for water. Molar mass of EG=60.05 g/mol.
The formula for the illegal drug cocaine is C17H21NO4. What is the percentage of hydrogen in the compound?
Give the equations representing the first and second dissociations of oxalic acid. Calculate the value of the first dissociation constant K1, for oxalic acid if the value of the second dissociation constant K2 is 6.40 x 10 ^-5
What is the maximum mass of aluminum chloride that can be formed when reacting 14.0g of aluminum
each successive hydrogen is more easily substituted until the trihalo species is obtained. Explain
What is the length (in cm) of an edge of a cube of lead (density = 11.3 g/mL) which has a mass of 20.87 lb
On size-exclusion chromatogram you have three peaks (2.9, 3.5, and 4.8 min). Column dead volume is 12 mL, and flow rate 4 ml/min. Are your separation conditions fit for size-exclusion requirements? Explain why.
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