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Suppose that a hotplate transfers 325KJ of energy to 450g of liquid water at 20C. What mass of the water would be boiled away?
The enthalpy of vaporization of water at 373 K and 1 bar is 40.7 kJ/mol and the molar heat capacities are 75.3 J/(mol K) for liquid and 33.6 J/(mol K) for gaseous water. Find the enthalpy of vaporization of water at 273 K and 1 bar.
An ideal gas has a pressure of 4.19 atm, a temperature of 97.83 °C, and has a volumetric flow rate of 72.73 L/min, what is the molar flow rate of the gas
A solution of Na2CO3 is added dropwise to a solution that contains 1.14Ã-10âˆ'2 M Fe and 1.53Ã-10âˆ'2 M Cd . What concentration of CO3 is need to initiate precipitation?
Why is lip gloss long lasting containing petroleum? How many metric tonnes of 5%-S coal would be required to yield the H2SO4 needed to produce a 2.0-cm rainfall of pH 2.00 over an area of 100 square kilometers?
Historically, the solid residue that is left after the Dichloromethane -or methylene chloride (CH2Cl2 )solution is evaporated has a lower melting point that its literature value, due to impurities.
A gas is compressed from an initial volume of 5.40 to a final volume of 1.20 by an external pressure of 1.00 . During the compression the gas releases 126 of heat.
determine the structures of Compounds A, B, C, D, and E. Show calculations. Support all of your structure determinations. Student performed a sodium borohydride reduction experiment.
could 131g of xenon gas in a vessel of volume 1.0dm^3 exerts a pressure of 20 atm at 25C if it behaves as a gas? if not what pressure would it exert? (b) what pressures would it exert if it behaved as a van der waals gas?
A 100ml sample of sodium bromide containde co104.62g of sodium bromide. upon evaporation, 6.280g of reside was obtained. frome this data calculate each of the folowing for the solution; a density of the solution
Calculate the pressure in atmospheres using both the ideal gas law and the van der Waals equation. For N2, a=1.35(L^2 x atm)/mol^2, and b=0.0387L/mo
What is the voltage of the cell: silver-silver chloride electrode || saturated calomel electrode given that the potential for the Ag|AgCl electrode in a saturated KCl
How many ATOMS of xenon are present in 3.25 moles of xenon trioxide. How many MOLES of oxygen are present in 9.37E+22 molecules of xenon trioxide
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