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1) CH3CL arises from microbrial fermentation and is found throughout the environment. It is also produced industrially and is used in the manufacture of various chemicals and has been used as a topical anesthetic. How much energy is required to convert 92.5 g of liquid to a vapor at its boiling point, -24.09 "C? The heat of vaporization of CH3CL is 21.40 kJ/mol.
2) Which requires greater thermal energy to warm from 25.0 "C to 100.0 "C, pure water or an equal mass of pure ethylene glycol, CH2OH2?
3) A sample of glass beads weighs 34.5 g and are heated to 100.0 "C in a boiling water bath. They are poured into a beaker containing 100.0 g H20 at 25.0 "C. When thermal equilibrium is reached, the temperature of the glass and the water is 29.9 "C. What is the specific heat capacity of the glass?
If hydrogen gas is collected over water at 20°C and 763 mm Hg, what is the partial pressure of the H2? The vapor pressure of water at 20°C is 17.5 mm Hg.
argon expands from 25.0 L to 35.0 L at a constant temperature of 350 K. Calculate delta G for the expansion.
A feed stream containing 2.00 mol/min butane and a feed stream containing 130 mol/min of air are fed into a reactor. The butane combusts completely according to the following reaction:
The density of liquid mercury is 13.6g/mL at 25 celsius. What is the density in g/cm3?
Calculate the minimum number of grams of solid that must be combusted to provide the energy necessary to convert 2.50kg of from its solid form at -14.0 C to its liquid form at 60.0 C .
A mixture of 0.150 moles of C is reacted with 0.117 moles of O2 in a sealed, 10 L vessel at 500 K, producing a mixture of CO and CO2
A calorimetry experiment determined that the combustion of 1.01 g of H2 reacting with excess O2 producing H2O gave q=143 kJ. Calculate the change in enthaply.
celcius of a solution prepared by dissolving 0.0550 mole of a sodium acetate in 1.00 L of 0.250 M acetic acid.
Water has vapor pressure of 23.8 torr at 25 degrees celsius. Find vapor pressure of water at 40 degrees celsius if delta H of vaporization is 40.7 KJ/mol.
What is the molar concentration of free (uncomplexed) Ag+ in solution when 4.25g AgNO3 is dissolved in 100.0 mL 1.00 M NH3 aqueous
Sample were collected in a zinc smelter to determine the exposure of a furnace tender to lead fume during his normal work duties which involves "furnace draws" and general activities around the furnace.
dimethylpropyl p-toluenesulfonate is dissolved in acetic acid (75C), solvolysis yields five different products. Suggest reasonable structure
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