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Explain the gas inside a cylinder expands against a constant external pressure of 2.8 bar from a volume of 0.53 L to a volume of 0.89 L. In doing as a result it turns a paddle immersed in 1.24 L of water. Compute the temperature rise of the water assuming no heat loss to the surroundings or frictional losses in the mechanism. Obtain the density of water to be 1.00 g/cm3 and its specific heat to be 4.184 J/g/K.
how much heat in is evolved in converting 1.00 of steam at 160.0 to ice at -55.0? the heat capacity of steam is 2.01
Use the table of standard reduction potentials to calculate the equilibrium constant at a standard temperature (25 degrees C) for the following reactions:
graphite fiber is made by modifying the microstructure into long thin ribbons in which the carbon sheets lie in the
A 20.0 mL sample of vinegar, which is an aqueous solution of acetic acid, , requires 19.5 mL of 0.700 M NaOH to reach the endpoint in a titration. What is the molarity of the acetic acid solution
question h2aso4- is amphoteric. what is the balanced chemical equation for its reaction with nitric acid? write the
In a calorimeter of capacity =0, you mix 50g of water at 80°C with 100g of water at 10°C. What is the final temperature
Explain how the calculated percent NaHCO3 and Na2CO3 by mass would be affected if the initial mixture were wet with water.
An aqueous antifreeze solution is 40.0% ethylene glycol, C_2H_6O_2, by mass. The density of the solution is 1.05 g/ml. Calculate the molality of the ethylene glycol.
An electric power station annually burns 3.3 107 kg of coal containing 1.4 percent sulfur by mass. Calculate the volume of SO2 emitted at STP
One drop of 1N HCl is added to the stirred solution which is heated in a boiling water bath for 5 minutes. on cooling a precipitate is deposited which is collected and recrystallized in absolute alcohol. What is the product of this reaction
Why are active firefighters likely to experience the adverse health effects from inhaling 300 ppm of carbon monoxide faster than nonactive off-duty firefighters
For the reaction shown below, Kp = 0.116 at 38.6 °C. Find the equilibrium partial pressures of ALL species if at the start of the reaction PCO = 1.17 atm and PCOBr2 = 1.4 atm
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